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 Original Papers 

  1. "Trimerization and orbital ordering in Ba1-xSrxV13O18"
    T. Kajita, Y. Obata, Y. Kakesu, Y. Imai, Y. Shmizu, M. Itoh, H. Kuwahara, and T. Katsufuji:
    Physical Review B 96, 245126 (2017).


  2. "Magnetic phase diagram for the mixed-valence Eu oxide EuTi1-xAlxO3 (0≤x≤1)"
    D. Akahoshi, S. Koshikawa, T. Nagase, E. Wada, K. Nishina, R. Kajihara, H. Kuwahara, and T. Saito:
    Physical Review B 96, 184419 (2017).


  3. "Low Temperature Specific Heat in Lightly Mn-Substituted Electron-Doped SrTiO3"
    T. Okuda, H. Hata, T. Eto, S. Sobaru, R. Oda, M. Noda, and H. Kuwahara:
    Journal of the Physical Society of Japan 86, 084601 (2017).


  4. "Effects of Mn Substitution on the Thermoelectric Properties and Thermal Excitations of the Electron-doped Perovskite Sr1−xLaxTiO3"
    T. Okuda, H. Hata, T. Eto, S. Sobaru, R. Oda, H. Kaji, K. Nishina, H. Kuwahara, M. Nakamura, and R. Kajimoto:
    Journal of the Physical Society of Japan 85, 094717 (2016).


  5. "Orbital Glass State of the Nearly Metallic Spinel Cobalt Vanadate"
    R. Koborinai, S. E. Dissanayake, M. Reehuis, M. Matsuda, T. Kajita, H. Kuwahara, S.-H. Lee, and T. Katsufuji:
    Physical Review Letters 116, 037201 (2016).


  6. "Rapid formation of hydroxyapatite layer on polyetheretherketone by vacuum ultraviolet irradiation and microwave heating techniques"
    N. Suzuki, T. Umeda, T. Sumi, S. Horikoshi, H. Kuwahara, T. Toyama, Y. Musha and K. Itatani:
    Journal of the Ceramic Society of Japan 124, 49-54 (2016).


  7. "High field studies on BiFeO3 single crystals grown by the laser-diode heating floating zone method"
    M. Tokunaga, M. Akaki, A. Miyake, T. Ito, and H. Kuwahara :
    Journal of Magnetism and Magnetic Materials 383, 259-261 (2015).


  8. "Magnetic control of transverse electric polarization in BiFeO3"
    M. Tokunaga, M. Akaki, T. Ito, S. Miyahara, A. Miyake, H. Kuwahara, and N. Furukawa :
    Nature Communications 6, 5878 (5pages) (2015).


  9. "Effects of Mn substitution on the thermoelectric properties of the electron-doped perovskite Sr1-xLaxTiO3"
    T. Okuda, H. Hata, T. Eto, K. Nishina, H. Kuwahara, M. Nakamura, and R. Kajimoto :
    Journal of Physics: Conference Series 568, 022035 (5pages) (2014).


  10. "Interplay between Ferroelectric and Antiferromagnetic Phase Transitions in RbCoBr3"
    Yoichi Nishiwaki, T. Yamaguchi, M. Takashige, H. Kuroe, M. Akaki, H. Kuwahara, T. Kato, and K. Iio :
    Journal of the Physical Society of Japan 83, 114708 (8pages) (2014).


  11. "Successive Magnetic Transitions of Ca2CoSi2O7 in High Magnetic Fields"
    M. Akaki, H. Kuwahara, A. Matsuo, K. Kindo, and M. Tokunaga :
    Journal of the Physical Society of Japan 83, 093704 (4pages) (2014).
    (cond-mat/arXiv:1407.6450)


  12. "Preparation of red-emitting Eu2+-doped barium calcium silicon oxynitride by solid-state reaction and its luminescence properties"
    H. Morishita, A. C. A. Delsing, H. T. Hintzen, H. Kuwahara, and K. Itatani :
    Key Engineering Materials 617, 149-152 (2014).


  13. "Anomalous metallic ground state in BaV13O18"
    T. Kanzaki, J. Fujioka, Y. Tokura, H. Kuwahara, and T. Katsufuji :
    Physical Review B 89, 140401(R) (5pages) (2014).


  14. "Reduction of critical field for magnetic and orbital-ordering phase transition in impurity-substituted Nd0.45Sr0.55MnO3 crystal"
    Y. Izuchi, M. Akaki, D. Akahoshi, and H. Kuwahara :
    APL Materials 2, 022106 (7pages) (2014).
    (cond-mat/arXiv:1402.1543)


  15. "Fabrication of transparent sintered ZnO-B2O3-Bi2O3 glass body by pressureless firing and hot isostatic pressing"
    K. Abe, J. Hamada, M. Miyazawa, H. Kuwahara, and K. Itatani :
    IOP Conference Series: Materials Science and Engineering 47, 012024 (4pages) (2013).


  16. "Thermal, Dielectric, and Magnetic Properties in Multiferroic Cu2.85Zn0.15Mo2O9"
    H. Kuroe, K. Aoki, R. Itoh, T. Hosaka, T. Hasegawa, S. Hachiuma, M. Akaki, H. Kuwahara, T. Sekine, M. Hase, K. Oka, T. Ito, and H. Eisaki :
    Journal of the Korean Physical Society 63, 542-545 (2013).


  17. "Control of Coexisting Ferroelectric Phases in RMnO3 Crystals with Fine Tuning of 4f Moment"
    T. Tadokoro, N. Kano, H. Kuroe, T. Sekine, H. Kuwahara, and M. Akaki :
    Journal of the Korean Physical Society 63, 504-507 (2013).



  18. "Low-temperature Thermoelectric Properties of the Electron-doped Perovskites
    Sr1-xCaxTi1-yNbyO3"

    T. Okuda, J. Fukuyado, K. Narikiyo, M. Akaki, and H. Kuwahara :
    Journal of the Korean Physical Society 63, 428-432 (2013).


  19. "Anisotropic Magnetic Properties in Åkermanite Sr2MSi2O7(M=Co, Mn) Crystals"
    M. Akaki, T. Tadokoro, H. Kuwahara, T. Kihara, and M. Tokunaga :
    Journal of the Korean Physical Society 62, 1812-1814 (2013).


  20. "High Magnetic Field Dependence of Magnetodielectric Properties in Sr2CoSi2O7 Crystal"
    M. Akaki, T. Tadokoro, T. Kihara, M. Tokunaga, and H. Kuwahara :
    Journal of Low Temperature Physics 170, 291-295 (2013).


  21. "Anisotropic magneto-transport properties of layered perovskite Sr3Fe2-xCoxO7-δ crystals"
    R. Nakamura, J. Tozawa, M. Akaki, D. Akahoshi, K. Itatani, and H. Kuwahara :
    Journal of Physics: Conference Series 400, 032060 (4pages) (2012).

  22. "Magnetoelectric property in 3d transition metal oxide with tetrahedral structure"
    H. Iwamoto, M. Ehara, M. Akaki, and H. Kuwahara :
    Journal of Physics: Conference Series 400, 032031 (4pages) (2012).

  23. "Multiferroic properties of an åkermanite Sr2CoSi2O7 single crystal in high magnetic fields"
    M. Akaki, H. Iwamoto, T. Kihara, M. Tokunaga, and H. Kuwahara :
    Physical Review B 86, 060413(R) (4pages) (2012).
    (cond-mat/arXiv:1208.5290)

  24. "Thermoelectric properties of the electron-doped perovskites Sr1-xCaxTi1-yNbyO3"
    J. Fukuyado, K. Narikiyo, M. Akaki, H. Kuwahara, and T. Okuda :
    Physical Review B 85, 075112 (9pages) (2012).

  25. "Preparation of Eu2+-doped Ca2Si5N8 by Carbothermal Reduction / Nitridation of Spray-pyrolyzed Oxide/nitride Powder and Its Luminescence Properties"
    K. Yamaguchi, H. T. Hintzen, A. C. A. Delsing, H. Kuwahara, S. Koda, and K. Itatani :
    Journal of Light and Visual Environment 35, 207-213 (2011).

  26. "Magnetic and Transport Properties of Quasi Two-Dimensional Ferromagnet Sr3Fe2-xCoxO7-d (x = 0.2 and 0.5)"
    D. Akahoshi, J. Tozawa, R. Nakamura, M. Akaki, and H. Kuwahara :
    Journal of the Physical Society of Japan 80, 124702 (4pages) (2011).

  27. "Ferromagnetic Behavior of (Fe1-yZny)2Mo3O8 (0≤y≤1) Induced by Nonmagnetic Zn Substitution"
    S. Nakayama, R. Nakamura, M. Akaki, D. Akahoshi, and H. Kuwahara :
    Journal of the Physical Society of Japan 80, 104706 (4pages) (2011).

  28. "Anomalous Coexistence of Ferroelectric Phases (P || a and P || c) in Orthorhombic Eu1-yYyMnO3 (y>0.5) Crystals"
    M. Akaki, M. Hitomi, M. Ehara, D. Akahoshi, and H. Kuwahara :
    Journal of the Physical Society of Japan 80, 094706 (4pages) (2011).
    (cond-mat/arXiv:1107.2733)

  29. "Electron- and Hole-Doping Effects on A-site Ordered NdBaMn2O6"
    Y. Miyauchi, M. Akaki, D. Akahoshi, and H. Kuwahara :
    Journal of the Physical Society of Japan 80, 074708 (3pages) (2011).
    (cond-mat/arXiv:1105.2366)

  30. "The Effect of f-d Magnetic Coupling in Multiferroic RMnO3 Crystals"
    M. Hitomi, M. Ehara, M. Akaki, D. Akahoshi, and H. Kuwahara :
    Journal of the Physical Society of Japan 79, 054704 (5pages) (2010).
    (cond-mat/1002.4519)

  31. "Development of high-speed polarizing imaging system for operation in high pulsed magnetic field"
    I. Katakura, M. Tokunaga, A. Matsuo, K. Kawaguchi, K. Kindo, M. Hitomi, D. Akahoshi, and H. Kuwahara :
    Review of Scientific Instruments 81, 043701 (5pages) (2010).

  32. "Development of the High-Field Imaging System in Pulsed-High Magnetic Fields and Its Application to Manganites"
    I. Katakura, M. Tokunaga, A. Matsuo, K. Kawaguchi, K. Kindo, M. Hitomi, D. Akahoshi, and H. Kuwahara :
    Journal of Low Temperature Physics 159, 319-323 (2010).

  33. "Effects of magnetic field and pressure on the antiferromagnetic and weak-ferromagnetic orders in tetrahedral spin chain system Cu3Mo2O9"
    T. Hamasaki, H. Kuroe, T. Sekine, M. Akaki, H. Kuwahara, and M. Hase :
    Journal of Physics: Conference Series 200, 022013 (4pages) (2010).

  34. "R-site Randomness Effect in Double-Perovskite RBaMn2O6"
    Y. Miyauchi, S. Fukushima, J. Tozawa, M. Akaki, H. Kuwahara, and D. Akahoshi :
    Journal of Physics: Conference Series 200, 012123 (4pages) (2010).
    (cond-mat/0909.1429)

  35. "A-site substitution effect on physical properties of Sr3Fe2-xCoxO7-d"
    J. Tozawa, M. Akaki, D. Akahoshi, H. Kuwahara, and K. Itatani :
    Journal of Physics: Conference Series 200, 012209 (4pages) (2010).
    (cond-mat/0909.1172)

  36. "Magnetoelectric Properties of (Ca1-xSrx)2CoSi2O7 Crystals"
    M. Akaki, J. Tozawa, M. Hitomi, D. Akahoshi, and H. Kuwahara :
    Journal of Physics: Conference Series 200, 012003 (4pages) (2010).
    (cond-mat/0909.1159)

  37. "Local crystal structure analysis with 10-pm accuracy using scanning transmission electron microscopy"
    M. Saito, K. Kimoto, T. Nagai, S. Fukushima, D. Akahoshi, H. Kuwahara, Y. Matsui, and K. Ishizuka:
    Journal of Electron Microscopy 58, 131-136 (2009).


  38. "Order-Disorder Effect of A-site and Oxygen-Vacancy on Magnetic and Transport Properties of Y1/4Sr3/4CoO3-d"
    S. Fukushima, T. Sato, D. Akahoshi, and H. Kuwahara :
    Journal of the Physical Society of Japan 78, 064706 (2009).

    (cond-mat/0901.1734)

  39. "Gigantic magnetoelectric effect caused by magnetic-field-induced canted antiferromagnetic-paramagnetic transition in quasi-two-dimensional Ca2CoSi2O7 crystal"
    M. Akaki, J. Tozawa, D. Akahoshi, and H. Kuwahara :
    Applied Physics Letters 94, 212904 (2009).


  40. "Impact of orbital degrees of freedom on geometrical frustration in the kagome-like magnet SrVxGa12-xO19"
    J. Miyazaki, T. Sonehara, D. Akahoshi, H. Kuwahara, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji :
    Physical Review B 79, 180410(R) (2009).


  41. "Cr-doping effect on the orbital fluctuation of heavily doped Nd1-xSrxMnO3 (x~0.625)"
    R. Tasaki, S. Fukushima, M. Akaki, D. Akahoshi, and H. Kuwahara:
    Journal of Applied Physics 105, 07D725 (2009).

    (cond-mat/0901.2419)

  42. "Persistent and Reversible Phase Control in GdMnO3 near the Phase Boundary"
    H. Kuwahara, M. Akaki, J. Tozawa, M. Hitomi, K. Noda, and D. Akahoshi:
    Journal of Physics: Conference Series 150, 042106 (2009).

    (cond-mat/0901.2181)

  43. "Magnetic and dielectric properties of A2CoSi2O7 (A=Ca, Sr, Ba) crystals"
    M. Akaki, J. Tozawa, D. Akahoshi, and H. Kuwahara :
    Journal of Physics: Conference Series 150, 042001 (2009).

    (cond-mat/0901.1749)

  44. "Chemical potential landscape in band filling and bandwidth-control of manganites: Photoemission spectroscopy measurements"
    K. Ebata, M. Takizawa, A. Fujimori, H. Kuwahara, Y. Tomioka, and Y. Tokura :
    Physical Review B 78, 020406(R) (2008).

    (cond-mat/0807.5066)

  45. "Magnetodielectric effects in low-dimensional cobalt oxides"
    M. Akaki, F. Nakamura, D. Akahoshi, and H. Kuwahara :
    Physica B: Condensed Matter 403, 1505-1507 (2008).


  46. "Large Magnetoresistance of Heavily Doped Nd1-xSrxMnO3 (0.55≦x≦0.75)"
    D. Akahoshi, R. Hatakeyama, and H. Kuwahara :
    Physica B: Condensed Matter 403, 1598-1600 (2008).


  47. "Chemical potential shift induced by double-exchange and polaronic effects in Nd1-xSrxMnO3"
    K. Ebata, M. Takizawa, K. Maekawa, A. Fujimori, H. Kuwahara, Y. Tomioka, and Y. Tokura :
    Physical Review B 77, 094422 (2008).

    (cond-mat/0710.4462)

  48. "Anomalous ferromagnetic behavior and large magnetoresistance induced by orbital fluctuation in heavily doped Nd1-xSrxMnO3 (0.57≦x≦0.75)"
    D. Akahoshi, R. Hatakeyama, M. Nagao, T. Asaka, Y. Matsui, and H. Kuwahara :
    Physical Review B 77, 054404 (2008).


  49. "Comparative study of ordered and disordered Y1-xSrxCoO3-d"
    S. Fukushima, T. Sato, D. Akahoshi, and H. Kuwahara :
    Journal of Applied Physics 103, 07F705 (2008).

    (cond-mat/0801.4445)

  50. "Nanostructural evidence at the phase boundary of A- and C-type antiferromagnetic phases in Nd1-xSrxMnO3 crystals"
    M. Nagao, T. Asaka, D. Akahoshi, R. Hatakeyama, T. Nagai, M. Saito, K Watanabe, M. Tanaka, A. Yamazaki, T. Hara, K. Kimoto, H. Kuwahara, and Y. Matsui :
    Journal of Physics: Condensed Matter 19, 492201 (2007).


  51. "Ferroelectric polarization and magnetic structure in Eu0.595Y0.405MnO3"
    R. Kajimoto, T. Yokoo, M. Kofu, K. Noda, and H. Kuwahara :
    Journal of Physics and Chemistry of Solids 68, 2087-2090 (2007).


  52. "Anomalous Reflectivity Oscillation of Layered Manganite La0.5Sr1.5MnO4"
    K. Kouyama, Y. Kubo, K. Ema, and H. Kuwahara :
    Journal of the Physical Society of Japan 76, 123702 (2007).


  53. "Diffuse phase transition and anisotropic evolution of nanodomains in Nd0.2Sr0.8MnO3"
    M. Nagao, T. Asaka, T. Nagai, D. Akahoshi, R. Hatakeyama, T. Yokosawa, M. Tanaka, H. Yoshikawa, A. Yamazaki, K. Kimoto, H. Kuwahara, and Y. Matsui :
    Journal of the Physical Society of Japan 76, 103706 (2007).


  54. "Photoemission Study of Perovskite-Type Manganites with Stripe Ordering"
    K. Ebata, H. Wadati, M. Takizawa, K. Maekawa, A. Fujimori, A. Chikamatsu, H. Kumigashira, M. Oshima, Y. Tomioka, H. Kuwahara, and Y. Tokura :
    Journal of Superconductivity and Novel Magnetism 20, 543-546 (2007).

    DOI:10.1007/s10948-007-0271-2

  55. "Control of the ferroelectricity in a metastable state for orthorhombic RMnO3 crystals"
    K. Noda, M. Akaki, F. Nakamura, D. Akahoshi, and H. Kuwahara:
    Journal of Physics: Condensed Matter 19, 145279 (2007).
    (cond-mat/0610422)


  56. "Dimensionality of the electronic states in Nd0.45Sr0.55MnO3 studied by soft X-ray photoemission"
    H. Fujiwara, A. Sekiyama, M. Yano, T. Murakawa, T. Miyamachi, M. Tsunekawa, S. Imada, B. Schmid, M. Sing, A. Higashiya, T. Muro, T. Nakamura, K. Noda, H. Kuwahara, S. Miyasaka, Y. Tokura, and S. Suga :
    Journal of Magnetism and Magnetic Materials 310, 816-818 (2007).


  57. "Internal magnetic field effect on magnetoelectricity in orthorhombic RMnO3 crystals"
    K. Noda, M. Akaki, F. Nakamura, D. Akahoshi, and H. Kuwahara:
    Journal of Magnetism and Magnetic Materials 310, 1162-1164 (2007).
    (cond-mat/0610421)


  58. "Spin dynamics and magnon-phonon interactions in Nd0.6Sr0.4MnO3"
    B.J. Kirby, J.J. Rhyne, H. Kaiser, H. Kuwahara and Y. Tokura:
    Journal of Magnetism and Magnetic Materials 302, 237-243 (2006).


  59. "Thermal diffusivity and critical behavior of Nd1-xSrxMnO3"
    Alberto Oleaga, Agustin Salazar and Hideki Kuwahara :
    Physica B: Condensed Matter 378-380, 512-514 (2006).


  60. "Diversity of electronic states of Nd0.5Sr0.5MnO3 revealed by soft X-ray photoemission"
    H. Fujiwara, A. Sekiyama, A. Higashiya, K. Konoike, A. Yamasaki, S. Imada, T. Muro, K. Noda, H. Kuwahara, Y. Tokura and S. Suga :
    Physica B: Condensed Matter 378-380, 515-517 (2006).


  61. "Magnetic-field-induced switching between ferroelectric phases in orthorhombic-distortion-controlled RMnO3"
    K. Noda, M. Akaki, T. Kikuchi, D. Akahoshi, H. Kuwahara:
    Journal of Applied Physics 99, 08S905 (2006).
    (cond-mat/0512139)


  62. "Enhancement of the anomalous Hall effect and spin glass behavior in the bilayered manganite La2-2xSr1+2xMn2O7"
    Y. Hirobe, Y. Ashikawa, R. Kawasaki, K. Noda, D. Akahoshi, H. Kuwahara:
    Solid State Communications 137, 191-195 (2006).
    (cond-mat/0511252)


  63. "Control of ferroelectric phase by chemical pressure in (Gd, Tb)MnO3 crystals"
    K. Noda, S. Nakamura and H. Kuwahara:
    IEEE Transactions on Magnetics 41, 2814-2816 (2005).
    (cond-mat/0504655)


  64. "Magnetic-Field and External-Pressure Effect on Ferroelectricity in Manganites: Comparison between GdMnO3 and TbMnO3"
    K. Noda, S. Nakamura, J. Nagayama and H. Kuwahara:
    Journal of Applied Physics 97, 10C103 (2005)
    (cond-mat/0412148)


  65. "Magnetic field and external pressure control of ferroelectricity in multiferroic manganites"
    H. Kuwahara, K. Noda, J. Nagayama and S. Nakamura:
    Physica B 359-361 (2005) 1279-1281
    (cond-mat/0412155)


  66. "High-resolution photoemission study of Nd1-xSrxMnO3"
    H. Fujiwara, A. Sekiyama, A. Higashiya, K. Konoike, M. Tsunekawa, A. Yamasaki, A. Irizawa, S. Imada, T. Muro, K. Noda, H. Kuwahara, Y. Tokura and S. Suga:
    Journal of Electron Spectroscopy and Related Phenomena 144-147, 807-809 (2005).


  67. "Temperature-dependent magnetic circular dichroism in Mn 2p X-ray absorption spectra of Nd1-xSrxMnO3"
    A. Higashiya, H. Fujiwara, A. Sekiyama, K. Konoike, A. Yamasaki, S. Imada, S. Suga, H. Kuwahara and Y. Tokura:
    Journal of Electron Spectroscopy and Related Phenomena 144-147, 761-763 (2005).


  68. "Transient differential reflectivity of ferromagnetic and paramagnetic phases in the bilayered manganite La1.24Sr1.76Mn2O7"
    Y. Hirobe, Y. Kubo, K. Kouyama, H. Kunugita, K. Ema and H. Kuwahara:
    Solid State Communications 133, 449-453 (2005).


  69. "Spin Wave and Orbital Ordering in the C-type Antiferromagnetic Phase of Nd1-xSrxMnO3"
    R. Kajimoto, H. Yoshizawa, R. Kawasaki, K. Noda and H. Kuwahara:
    Journal of the Physical Society of Japan 74, 502-503 (2005).


  70. "Effects of magnetic field on Raman spectra in (Nd0.5Sr0.5)MnO3"
    H. Kuroe, Y. Yagi, H. Kuwahara and T. Sekine:
    Journal of magnetism and magnetic materials 272-276, 816-817 (2004).


  71. "Thermoelectric properties of filling controlled manganites"
    H. Kuwahara, Y. Hirobe, J. Nagayama, S. Kodama and A. Kakishima:
    Journal of magnetism and magnetic materials 272-276, e1393-e1394 (2004).


  72. "Orbital order and a canted phase in the paramagnetic and ferromagnetic states of 50 % hole-doped colossal magnetoresistance manganites"
    H. Kawano-Furukawa, R. Kajimoto, H. Yoshizawa, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Physical Review B 67, 174422-1-5 (2003).


  73. "Optical study in the charge-ordered phase of (Nd1-xSrx)MnO3"
    H. Kuroe, I. Habu, A. Sakuta, H. Kuwahara and T. Sekine:
    Physica B 329-333, 822-823 (2003).


  74. "Phase Diagram and Magneto-Transport Properties in Nd1-xSrxMnO3 Crystals"
    H. Kuwahara, R. Kawasaki, Y. Hirobe, S. Kodama and A. Kakishima:
    Physica B 329-333, 850-851 (2003).


  75. "Anomalous Hall effect and magnetoresistance in Nd1-xSrxMnO3 single crystals"
    H. Kuwahara, R. Kawasaki, Y. Hirobe, S. Kodama and A. Kakishima:
    Journal of Applied Physics 93, 7367-7369 (2003).


  76. "Ferromagnetic Domain Structures and Nanoclusters in Nd1/2Sr1/2MnO3"
    T. Asaka, Y. Anan, T. Nagai, S. Tsutsumi, H. Kuwahara, K. Kimoto, Y. Tokura and Y. Matsui:
    Physical Review Letters 89, 207203-1-4 (2002).

  77. "Low-Frequency Excitations in the Charge-Ordered Phase of (Nd0.5Sr0.5)MnO3"
    H. Kuroe, I. Habu, H. Kuwahara and T. Sekine:
    Physica B 316-317, 575-578 (2002).

  78. "Nonlinear magneto-optical properties of Pr1-xCaxMnO3 and Nd1-xSrxMnO3"
    M. Fiebig, K. Miyano, Y. Tokura, Y. Tomioka, H. Kuwahara and K. Eimann:
    Journal of Applied Physics B 91, 7505-7507 (2002).

  79. "Field-induced orbital order-disorder transition in an A-type antiferromagnetic manganite: High-field study of Nd0.45Sr0.55MnO3"
    T. Hayashi, N. Miura, K. Noda, H. Kuwahara, S. Okamoto, S. Ishihara and S. Maekawa:
    Physical Review B 65, 024408-1-5 (2002).

  80. "Charge/orbital ordering in perovskite manganites"
    Y. Tomioka, T. Okuda, Y. Okimoto, A. Asamitsu, H. Kuwahara and Y. Tokura:
    Journal of Alloys and Compounds 326, 27-35 (2001).

  81. "Nonlinear magneto-optical properties of colossal magnetoresistive manganites"
    M. Fiebig, K. Miyano, Y. Tomioka, H. Kuwahara, Y. Tokura and K. Reimann:
    Physical Review Letters 86, 6002-6005 (2001).

  82. "Field-induced orbital order transition of Nd0.45Sr0.55MnO3 observed in high-field magnetization and resistivity"
    T. Hayashi, N. Miura, K. Noda and H. Kuwahara:
    Physica B 294-295, 115-118 (2001).

  83. "Orbital-ordering-induced anomalous softening of the ferromagnetic spin waves in perovskite manganites"
    R. Kajimoto, H. Yoshizawa, H. Kawano-Furukawa, H. Kuwahara, Y. Tomioka and Y. Tokura:
    J. Magnetism and Magnetic Materials 226-230, 892-894 (2001).

  84. "Spin Dynamics in Nd1-xSrxMnO3 with x=0.5"
    V. V. Krishnamurthy, I. Watanabe, K. Nagamine, H. Kuwahara and Y. Tokura:
    Physica B 289-290, 56-60 (2000).

  85. "Local magnetic states in La1-xSrxMnO3 and Nd1-xSrxMnO3 "
    S. Imada, S. Suga, T. Muro, S. Ueda, R.-J. Jung, M. Kotsugi, Y. Saitoh, T. Matsushita, H. Kuwahara, Y. Moritomo and Y. Tokura:
    Physica B 281-282, 498-499 (2000).

  86. "Critical Spin Dynamics in Nd1-xSrxMnO3 with x ~ 0.5"
    V. V. Krishnamurthy, I. Watanabe, K. Nagamine, H. Kuwahara and Y. Tokura:
    Physical Review B 61, 4060-4069 (2000).

  87. "Orbital-State-Mediated Phase-Control of Manganites"
    Y. Konishi, Z. Fang, M. Izumi, T. Manako, M. Kasai, H. Kuwahara M. Kawasaki, K.Terakura and Y. Tokura:
    Journal of the Physical Society of Japan 68, 3790-3793 (1999).

  88. "X-ray Diffuse Scattering due to Polarons in a Colossal Magnetoresistive Manganite"
    S. Shimomura, N. Wakabayashi, H. Kuwahara and Y. Tokura:
    Physical Review Letters 83, 4389-4392 (1999).

  89. "Hole-Concentration-Induced Transformation of the Magnetic and Orbital Structure's in Nd1-xSrxMnO3"
    R. Kajimoto, H. Yoshizawa, H. Kawano, H. Kuwahara, Y. Tokura, K. Ohoyama and M. Ohashi:
    Physical Review B 60, 9506-9517 (1999).

  90. "Quasi-elastic ferromagnetic excitations in Nd1/2Sr1/2MnO3"
    R. Kajimoto, H. Yoshizawa, H. Kawano, H. Kuwahara and Y. Tokura:
    Journal of Physics and Chemistry of Solids 60, 1177-1180 (1999).

  91. "Effect of Magnetic Transitions and Charge-Ordering on Crystal Lattice in Nd0.5Sr0.5MnO3"
    S. Shimomura, K. Tajima, N. Wakabayashi, S. Kobayashi H. Kuwahara and Y. Tokura:
    Journal of the Physical Society of Japan 68, 1943-1947 (1999).

  92. "Roles of Orbital in Magnetoelectronic Properties of Colossal Magnetoresistive Manganites"
    T. Okuda, T. Kimura, H. Kuwahara, Y. Tomioka, A. Asamitsu, Y. Okimoto, E. Saitoh and Y. Tokura:
    Materials Science and Engineering B 63, 163-170 (1999).

  93. "Magnetic Ordering and Spin Fluctuations in Nearly Half-Doped Manganites"
    H. Yoshizawa, R. Kajimoto, H. Kawano, J. A. Fernandez-Baca, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Materials Science and Engineering B 63, 125-132 (1999).

  94. "Electronic states of charge-ordering Nd0.5Sr0.5MnO3 probed by photoemission"
    A. Sekiyama, S. Suga, M. Fujikawa, S. Imada, T. Iwasaki, K. Matsuda, T. Matsushita, K. V. Kaznacheyev, A. Fujimori, H. Kuwahara and Y. Tokura:
    Physical Review B 59, 15528-15532 (1999).

  95. "Two-dimensional charge-transport and spin-valve effect in the layered antiferromagnet Nd0.45Sr0.55MnO3"
    H. Kuwahara, T. Okuda, Y. Tomioka, A. Asamitsu and Y. Tokura:
    Physical Review Letters 82, 4316-4319 (1999).

  96. "Concurrent Nd and Mn Spin Excitations in Nd0.6Sr0.4MnO3"
    H. Kaiser, L. E. Stumpe, J. J. Rhyne, Y. Tokura and H. Kuwahara:
    Journal of Applied Physics 85, 5564-5566 (1999).

  97. +SR studies on (Nd1-ySmy)0.5Sr0.5MnO3"
    W. Higemoto, K. Nishiyama, I. Watanabe, K. Nagamine, A. Asamitsu, H. Kuwahara and Y. Tokura:
    Physica B 259-261, 822-823 (1999).

  98. "Microscopically homogeneous magnetic structure of La1-xSrxMnO3 beyond the range of 0 < x < 0.1 observed by La NMR"
    K. Kumagai, A. Iwai, Y. Tomioka, H. Kuwahara, Y. Tokura and A. Yakubovskii:
    Physical Review B 59, 97-99 (1999).

  99. "Electronic Structures of Nd1-xSrxMnO3, La1-xSrxMnO3 and La1-xCaxMnO3 Studied by Photoemission and Inverse Photoemission Spectroscopy"
    Y. Kuwata, S. Suga, S. Imada, A. Sekiyama, S. Ueda, T. Iwasaki, H. Harada, T. Muro, T. Fukawa, K. Ashida, H. Yoshioka, T. Terauchi, J. Sameshima, H. Kuwahara, Y. Moritomo and Y. Tokura:
    Journal of Electron Spectroscopy and Related Phenomena 88-91, 281-285 (1998).

  100. "Anisotropic spin waves in a metallic antiferromagnet Nd0.45Sr0.55MnO3"
    H. Yoshizawa, H. Kawano, J. A. Fernandez-Baca, H. Kuwahara and Y. Tokura:
    Physical Review B 58, R571-R574 (1998).

  101. "Effect of the magnetic field on the spin, charge and orbital ordered states in perovskite-type manganese oxides"
    Y. Tomioka, H. Kuwahara, A. Asamitsu, T. Kimura, R. Kumai and Y. Tokura:
    Physica B 246-247, 135-140 (1998).

  102. "Two-Dimensional Anisotropy in a Layered Metallic antiferromanget RE1-xSrxMnO3 with x ~ 1/2"
    H. Kawano, R. Kajimoto, H. Yoshizawa, J. A. Fernandez-Baca, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Physica B 241-243, 289-294 (1998).

  103. "Temperature dependence of the electronic structure of the charge-ordering manganite Pr0.5Sr0.5MnO3"
    A. Chainani, H. Kumigashira, T. Takahashi, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Physical Review B 56, R15513-R15516 (1997).

  104. "Spin-Charge-Lattice Coupled Phase Transitions in Bandwidth-Controlled Systems:(Nd,Sm)1/2Sr1/2MnO3"
    H. Kuwahara, Y. Moritomo, Y. Tomioka, A. Asamitsu, M. Kasai, R. Kumai and Y. Tokura:
    Physical Review B 56, 9386-9396 (1997).

  105. "Current Switching of Resistive States in Magnetoresistive Manganites"
    A. Asamitsu, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Nature 388, 50-52 (1997).

  106. "Critical Change of Magnetoresistance with Bandwidth and Doping in Perovskite Manganites"
    Y. Tomioka, H. Kuwahara, A. Asamitsu, M. Kasai and Y. Tokura:
    Applied Physics Letters 70, 3609-3611 (1997).

  107. "Reentrant Transition of the Charge-Ordered State in Perovskite Manganites"
    Y. Tomioka, A. Asamitsu, H. Kuwahara and Y. Tokura:
    Journal of the Physical Society of Japan 66, 302-305 (1997).

  108. "Magnetic Ordering and Relation to the Metal-Insulator Transition in Pr1-xSrxMnO3 and Nd1-xSrxMnO3 with x ~ 1/2"
    H. Kawano, R. Kajimoto, H. Yoshizawa, Y. Tomioka, H. Kuwahara and Y. Tokura:
    Physical Review Letters 78, 4253-4256 (1997).

  109. "Pressure Effects on Charge-Ordering Transitions in Perovskite Manganites"
    Y. Moritomo, H. Kuwahara, Y. Tomioka and Y. Tokura:
    Physical Review B 55, 7549-7556 (1997).

  110. "Bandwidth- and Doping-Dependent Pressure Effects on the Ferromagnetic Transition in Perovskite Manganites"
    Y. Moritomo, H. Kuwahara and Y. Tokura:
    Journal of the Physical Society of Japan 66, 556-559 (1997).

  111. "Low-Field Colossal Magnetoresistance in Bandwidth-Controlled Manganites"
    H. Kuwahara, Y. Moritomo, Y. Tomioka, A. Asamitsu, M. Kasai and Y. Tokura:
    Journal of Applied Physics 81, 4954-4956 (1997).

  112. "High Resolution Photoemission Study of Nd0.5Sr0.5MnO3: Temperature Dependence and Resonance Spectra"
    S. Suga, T. Matsushita, M. Tsunekawa, T. Iwasaki, J. Samejima, Y. Kuwata, A. Kimura, A.Sekiyama, A. Fujimori, H. Ishii, T. Miyahara, H. Kuwahara and Y. Tokura:
    Physica B 237-238, 413-414 (1997).

  113. "Magnetic-Field-Induced Metal-Insulator Transition in Perovskite-Type Manganese Oxides"
    Y. Tomioka, A. Asamitsu, H. Kuwahara, Y. Moritomo, M. Kasai, R. Kumai and Y.Tokura:
    Physica B 237-238, 6-10 (1997).

  114. "Chemical and External Pressure Effects on Ferromagnetic Manganites"
    Y. Moritomo, H. Kuwahara and Y. Tokura:
    Physica B 237-238, 26-27 (1997).

  115. "Interplane Tunneling Magnetoresistance in a Layered Manganite Crystal"
    T. Kimura, Y. Tomioka, H. Kuwahara, A. Asamitsu, M. Tamura and Y. Tokura:
    Science 274, 1698-1701 (1996).

  116. "Magnetic-Field-Induced Insulator-Metal Phenomena in Perovskite Manganese Oxides"
    Y. Tokura, Y. Tomioka, H. Kuwahara, A. Asamitsu, Y. Moritomo and M. Kasai:
    Physica C 263, 544-549 (1996).

  117. "Colossal Magnetoresistance in Sm1-xSrxMnO3 Films"
    M. Kasai, H. Kuwahara, Y. Tomioka and Y. Tokura:
    Journal of Applied Physics 80, 6894-6897 (1996).

  118. "Origin of Colossal Magnetoresistance in Perovskite-Type Manganese Oxides"
    Y. Tokura, Y. Tomioka, H. Kuwahara, A. Asamitsu, Y. Moritomo and M. Kasai:
    Journal of Applied Physics 79, 5288-5291(1996).

  119. "Competing Instabilities and Metastable States in (Nd,Sm)1/2Sr1/2MnO3"
    Y. Tokura, H. Kuwahara, Y. Moritomo, Y. Tomioka and A. Asamitsu:
    Physical Review Letters 76, 3184-3187 (1996).

  120. "Hysteretic Magnetoresistance in Nd1-xSrxMnO3 Films with Controlled Carrier Density"
    M. Kasai, H. Kuwahara, Y. Moritomo, Y. Tomioka and Y. Tokura:
    Japanese Journal of Applied Physics 35, L489-L492 (1996).

  121. "Giant Magnetoresistance of Manganese Oxides with a Layered Perovskite Structure"
    Y. Moritomo, A. Asamitsu, H. Kuwahara and Y. Tokura:
    Nature 380, 141-144 (1996).

  122. "Striction-Coupled Magnetoresistance in Perovskite-Type Manganese Oxides"
    H. Kuwahara, Y. Tomioka, Y. Moritomo, A. Asamitsu, M. Kasai, R. Kumai and Y. Tokura:
    Science 272, 80-82 (1996).

  123. "Magnetic-Field-Induced Metal-Insulator Phenomena in Pr1-xCaxMnO3 with Controlled Charge-Ordering Instability"
    Y. Tomioka, A. Asamitsu, H. Kuwahara and Y. Moritomo:
    Physical Review B 53, R1689-R1692 (1996).

  124. "A First-Order Phase Transition Induced by a Magnetic Field"
    H. Kuwahara, Y. Tomioka, A. Asamitsu, Y. Moritomo and Y. Tokura:
    Science 270, 961-963 (1995).

  125. "Collapse of a Charge-Ordered State under a Magnetic Field in Pr1/2Sr1/2MnO3"
    Y. Tomioka, A. Asamitsu, Y. Moritomo, H. Kuwahara and Y. Tokura:
    Physical Review Letters 74, 5108-5111 (1995).

  126. "Effect of Zn Substitution for Cu in Bi2Sr2CaCu2O8+y Single Crystals"
    D. S. Jeon, H. Kuwahara, M. Akamatsu, H. Ikeda and R. Yoshizaki:
    Synthetic Metals 71, 1593-1594 (1995).

  127. "Transport Property of Tl2Ba2Ca1-xNdxCu2Oy"
    M. Akamatsu, H. Kuwahara, R. Yoshizaki, H. Ikeda and M. Nakao:
    Physica C 185-189, 1305-1306 (1991).

  128. "Sputtered Tl-Ca-Ba-Cu-O Thin Films with Zero Resistivity at 98 K"
    M. Nakao, R. Yuasa, M. Nemoto, H. Kuwahara, H. Mukaida and A. Mizukami:
    Japanese Journal of Applied Physics 27, L849-L851 (1988).

  129. "Magnetron Sputtering of Bi-Ca-Sr-Cu-O Thin Films with Superconductivity above 80 K"
    M. Nakao, H. Kuwahara, R. Yuasa and A. Mizukami:
    Japanese Journal of Applied Physics 27, L378-L380 (1988).

  130. "Intersubband Transitions in GaAs-AlxGa1-xAs Modulation-Doped Superlattices"
    M. Nakayama, H. Kuwahara, H. Kato and K. Kubota:
    Applied Physics Letters 51, 1741-1743 (1987).

  131. "Optical Study of Cr Doped Al2O3 Ultrafine Particles Synthesized by Metal-Alkoxide Method"
    Y. Hirai, T. Fukuda, Y. Kobayashi, H. Kuwahara, Y. Kido and K. Kubota:
    Solid State Communications 62, 637-640 (1987).

  132. "Synthesis of Fine Particles of Niobium-Oxide Compounds from Metal Alkoxides"
    Y. Hirai, T. Fukuda, H. Kuwahara, Y. Kobayashi and K. Kubota:
    Solid State Communications 61, 267-269 (1987).



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