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最近の発表論文
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Spatiotemporal characteristics of spin transport in compensated metals with electron-hole exchange interaction
M. Sakai, A. M. Sanjida, T. Yoshizumi, S. Hasegawa.
J. Phys.: Condens. Matter, 34, 055801:1-12 (2022).
Hall effect in ytterbium hydrides
S. Kitsunai, D. Fujii, T. Yoshizumi, S. Hasegawa, O. Nakamura, M. Sakai.
Phys. Lett. A, 419, 127740:1-4 (2021).
Nanoparticulate Pt-catalyzed hydrogenation of Yb films: Towards hydrides with higher hydrogen compositions
T. Yoshizumi, K. Koshiba, S. Kitsunai, T. Yoshizawa, O. Nakamura, M. Sakai.
Chem. Phys., 544, 111121:1-5 (2021).
Spin and charge transports with thermodynamic electron-hole correlation in nearly compensated metals
A. M. Sanjida, M. Sakai, T. Yoshizumi, S. Hasegawa.
AIP Adv., 10, 075210:1-10 (2020).
Magneto-transport properties in fcc ytterbium
T. Yoshizumi, D. Fujii, S. Kitsunai, K. Igarashi, M. Sakai, O. Nakamura, S. Hasegawa.
Phys. Lett. A, 384, 126661:1-4 (2020).
Entropy production by thermodynamic currents in ambipolar conductors with identical spin dynamics characters between holes and electrons
A. M. Sanjida, M. Sakai, S. Hasegawa, O. Nakamura, H. Awano.
Appl. Phys. Express, 12, 053004:1-5 (2019).
Field-effect transistor array modified by a stationary phase to generate informative signal patterns for machine learning-assisted recognition of gas-phase chemicals
T. Yoshizumi, T. Goda, R. Yatabe, A. Oki, A. Matsumoto, H. Oka, T. Washio, K. Toko, Y. Miyahara.
Mol. Syst. Des. Eng., 4, 386-389 (2019).
Low-temperature synthesis of hydride semiconductor YH3-δ using Pt capped Y films and its chemical thermodynamics analysis
T. Sakai, M. Sakai, T. Kobayashi, M. Yasutake, S. Akisato, R. Mikami, N.Suganuma, Y. Takahashi, Y. Nakajima, M. Tokuda, Y. Fujii, T. Hanajiri, O. Nakamura.
Thin Solid Films, 669, 288-293 (2019).
Resonant Hall effect under generation of a self-sustaining mode of spin current in nonmagnetic bipolar conductors with identical characters between holes and electrons
M. Sakai, H. Takao, T. Matsunaga, M. Nishimagi, K. Iizasa, T. Sakuraba, K. Higuchi, A. Kitajima, S. Hasegawa, O. Nakamura, Y. Kurokawa, H. Awano.
Jpn. J. Appl. Phys., 57, 33001:1-13 (2018).
Phthalocyanine based metal containing porous carbon sheet
Z. Honda, Y. Sakaguchi, M. Tashiro, M. Hagiwara, T. Kida, M. Sakai, T. Fukuda, N. Kamata.
Appl. Phys. Lett., 110, 133101 (2017).
Purification of commercial yttrium metal: Removal of fluorine
A.Takenouchi, T. Otomo, K. Niwa, M. Sakai, Y. Saito, T. Kirigane, M. Kosaka, S. Hasegawa, O. Nakamura.
J. Cryst. Growth, 468, 701-704 (2017).
Fabrication of YH3 thin film using Pd/Ni co-capping layer: Ni thickness effect
K. Yabuki, H. Hirama, N. Aoki, M. Sakai, Y. Saito, K. Higuchi, A. Kitajima, S. Hasegawa, O. Nakamura.
J. Cryst. Growth, 468, 714-717 (2017).
Preparation and magnetic properties of highly nitrogen-containing nano-graphite
Z. Honda, S. Kikuchi, M. Hagiwara, T. Kida, M. Sakai, T. Fukuda, N. Kamata.
Solid State Sciences, 67, 56-63 (2017).
Low-temperature and low-H2 pressure synthesis of hydride semiconductor YH3-dusing Pd/Ni co-capped Y films
K. Yabuki, H. Hirama, M. Sakai, Y. Saito, K. Higuchi, A. Kitajima, S. Hasegawa, O. Nakamura.
Thin Solid Films, 624, 175-180 (2017).
Surface magnetism of exfoliated α-Co hydroxide nanosheets
Z. Honda, K. Anai, M. Hagiwara, T. Kida, A. Okutani, M. Sakai, T. Fukuda, N. Kamata.
J. Phys. Chem. Solids, 107, 14-17, (2017).
Macroscopic kinematics of the Hall electric field under influence of carrier magnetic moments
M. Sakai.
AIP Adv., 6, 065220 (2016).
Preparation and magnetic properties of phthalocyanine-based carbon materials containing transition metals
Z. Honda, S. Sato, M. Hagiwara, T. Kida, M. Sakai, T. Fukuda, N. Kamata.
J. Appl. Phys., 120, 024902 (2016).
Crystal structures and magnetic properties of the honeycomb-lattice antiferromagnet M2(pymca)3(CIO4) ,(M＝Fe, Co, Ni)
Z. Honda, T. Kodama, M. Hagiwara, T. Kida, A. Okutani, M. Sakai, T. Hukuda, N. Kamata.
Solid State Sciences, 59, 15-18, (2016).
Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite
K. Kamishima, T. Mashiko, K. Kakizaki, M. Sakai, K. Watanabe, H. Abe.
AIP Adv., 5, 107132 (2015).
Crystal Structure of the Spin 1/2 Honeycomb-Lattice Antiferromagnet Cu2(pymca)3(ClO4)
Z. Honda, T. Kodama, R. Kikukawa, M. Hagiwara, T. Kida, M. Sakai, T. Fukuda, T. Fujihira, N. Kamata.
J. Phys. Soc. Jpn., 84, 034601 (2015).
The Hall resistivity and transverse magnetoresistivity generated in the simultaneous presence of spin-polarized current and external magnetic field in a nonmagnetic bipolar conductor YH2
M. Sakai, H. Takao, T. Matsunaga, Y. Tanaka, T. Arai, S. Haruyama, T. Otomo, H. Hirama, T. Sakuraba, Z. Honda, K. Higuchi, A. Kitajima, A. Oshima, S. Hasegawa, H. Awano.
Jpn. J. Appl. Phys., 54, 013001 (2015).
Crystallographic and magnetic properties of Cu2U-type hexaferrite
K. Kamishima, R. Tajima, K. Watanabe, K. Kakizaki, A. Fujimori, M. Sakai, K. Watanabe, H. Abe.
J. Magn. Magn. Mater., 375, 54 (2015).
Room temperature ferromagnetism in a phthalocyanine based carbon material
Z. Honda, K. Sato, M. Hagiwara, T. Kida, M. Sakai, T. Fukuda, N. Kamata.
J. Appl. Phys., 115, 054306 (2014).
Hall Effect and Magnetoresistance in GdxY1-xH2 (x≒0.4)
T. Sakuraba, M. Sakai, T. Arai, Y. Tanaka, H. Hitama, Z. Honda, A. Kitajima, K. Higuchi, A. Oshima, S. Hasegawa.
JPS Conf. Proc., 012009 (2014).
Optical Assessment of Carrier Effective Mass in GdxY1-xH2 (0≦x≦1)
S. Haruyama, M. Sakai, T. Sakuraba, H. Hirama, Z. Honda, A. Kitajima, K. Higuchi, A. Oshima, S. Hasegawa.
JPS Conf. Proc., 012016 (2014).
Small ordered magnetic moment in a weak itinerant electron ferromagnet Sc3In
K. Kamishima, R. Note, T. Imakubo, K. Watanabe, H. A. Katori, A. Fujimori, M. Sakai, K. V. Kamenev.
J. Alloys Compd., 589, 37-41, (2014).
Synthesis of a new U-type hexaferrite Ba4Cu2Fe36O60
R. Tajima, K. Kamishima, K. Kakizaki, N. Hiratsuka, A. Fujimori, M. Sakai, K. Watanabe.
Trans. Mat. Res. Soc. Japan, 38[3], 451-454, (2013).
Magnetoresistance generated by combination of spin-orbit interaction and applied magnetic field in bipolar conductors
M. Sakai, D. Kodama, Y. Okano, T. Sakuraba, Z. Honda, A. Kitajima, A. Oshima, K. Higuchi, S. Hasegawa, O. Nakamura.
Jpn. J. Appl. Phys., 52, 093001:1-8 (2013).
Influence of hydrogen incorporation on texture and grain size in YH2 films
T. Okoshi, M. Hayakawa, H. Hirama, M. Sakai, K. Higuchi, A. Kitajima, A. Oshima, S. Hasegawa.
J. Cryst. Growth, 378, 388-392 (2013).
Crystal growth of magnetic dihydride GdxY1-xH2 for generation of spin current
T. Sakuraba, H. Hirama, M. Sakai, Z. Honda, M. Hayakawa, T. Okoshi, A. Kitajima, A. Oshima, K. Higuchi, S. Hasegawa.
J. Cryst. Growth, 378, 351-355 (2013).
Enhancement of hydrogen uptake for Y and Gd films by thin Ni surface overlayers
H. Hirama, M. Hayakawa, T. Okoshi, M. Sakai, K. Higuchi, A. Kitajima, A. Oshima, S. Hasegawa.
J. Cryst. Growth, 378, 356-360 (2013).
High-field magnetization of the S =1/2 two-leg spin-ladder antiferromagnets CuAX2 (A=diazine,X=halogen)
M. Ikeda, Z. Honda, M. Sakai, S. Kimura, K. Okunishi, M. Hagiwara.
J. Low Temp. Phys., 170, 296 (2013).
Design of spin polarization analyzer using transverse-longitudinal correlation in resistivities induced by spin-orbit interaction
M. Sakai, K. Kakizaki, S. Hasegawa, A. Kitajima, A. Oshima, H. Awano.
Jpn. J. Appl. Phys., 52, 013004 (2013).
Negative Magnetoresistance Generated by Combination of Spin-Orbit Interaction and Applied Magnetic Field
M. Sakai, D. Kodama, T. Sakuraba, Z. Honda, S. Hasegawa, A. Kitajima, A. Oshima, K. Higuchi, O. Nakamura.
Jpn. J. Appl. Phys., 51, 023001 (2012).
Tunneling magnetoresitance in BaTiO3/Fe3O4 composites
T. Noshiro, K. Kamishima, K. Kakizaki, N. Hiratuka, M. Sakai, K. Watanabe.
Trans. Mat. Res. Soc. Japan, 37[2], 275 (2012).
Magnetic field-induced phase transitions in the S=1/2 two-leg spin-ladder material Cu(DEP)Br2
Z. Honda, H.A. Katori, M. Ikeda, M. Hagiwara, K. Okunishi, M. Sakai, T. Fukuda, N. Kamata.
J. Phys. Soc. Jpn., 81, 113710 (2012).
Generation of Spin Current in Bipolar Conductors
M. Sakai, T. Sakuraba, Z. Honda, S. Hasegawa, A. Kitajima, K.Higuchi, A. Oshima, O. Nakamura.
Jpn. J. Appl. Phys., 50, 103002 (2011).
Chap. 9. Physics and Engineering Aspects of Electronic Conduction in Yttrium Dihydride in Yttrium Compounds
M. Sakai and O. Nakamura.
Production and Applications edited by D. Volkerts (Nova Science Pulishers, Inc. 2011) 233-265 ISBN: 978-1-61728-928-6.
Appearance of a Correlation between the Hall Coefficient and Electrical Resistivity upon Dihydrogenation of Yttrium
M. Sakai, D. Kodama, S. Ito, M. Ito, O. Nakamura, S. Hasegawa, A. Kitajima, A. Oshima.
J. Appl. Phys., 108, 083719 (2010).
A Complementary Study of the Role of the Hall Electric Field for Generation of the Force on Current-Carrying Wire in a Magnetic Field
M. Sakai, N. Honda, F. Fujimoto, O. Nakamura, H. Shibata.
Am. J. Phys., 78, 160 (2010).
Dielectric Function Analysis of Superstoichiometric Samarium Dihydride Films
M. Sakai, T. Nanbo, Y. Tanji, O. Nakamura, M. Endo, H. Tajima.
J. Appl. Phys., 105, 083512 (2009).
Magneto-Transport Properties in Near-Stoichiometric Hydride Films of YH2+δ under Weak Fields
M. Sakai, T. Nanbo, O. Nakamura, Y. Uwatoko, H. Tajima.
J. Appl. Phys., 101, 103713 (2007).
Specific Heat of Superstoichiometric Samarium Dihydride (SmH2+δ)
O. Nakamura, Y. Tanaka, K. Nakazawa, T. Nakano, M. Sakai, S. Orimo, Y. Uwatoko.
J. Magn. & Magn. Mater., 310, e65 (2007).
Galvanomagnetic Properties of Super and Substoichiometric Yttrium Dihydrides
M. Sakai, Y. Tanji, O. Nakamura, Y. Uwatoko, H. Tajima.
J. Magn. & Magn. Mater., 310, e59 (2007).
Photoluminescence Characterization of Zn1-xMgxO Epitaxial Thin Films Grown on ZnO by Radical Source Moleculer Beam Epitaxy
H. Shibata, H. Tampo, K. Matsubara, A. Yamada, K. Sakurai, S. Ishizuka, S. Niki, M. Sakai.
Appl. Phys. Lett., 90, 124104 (2007).
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