Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Shigehiko Hasegawa"'
Spin and charge transports with thermodynamic electron–hole correlation in nearly compensated metals
Publikováno v:
AIP Advances, Vol 10, Iss 7, Pp 075210-075210-10 (2020)
The long spin-relaxation time (τs) toward the large transport distance of spin current (SC) is desirable for practical applications of spintronic devices because spatially and temporally large spin coherence makes spin manipulation easier. Here, we
Externí odkaz:
https://doaj.org/article/d9638d88b45343e2aa3c9ef8777f758c
Autor:
Kaname Sato, Yutaro Takahashi, Shujiro Akisato, Ryota Mikami, Nao Suganuma, Yugo Ashizawa, Hayate Kawaguchi, Yoshikata Nakajima, Tomofumi Ukai, Yasuhiko Fuji, Tatsuro Hanajiri, Junya Kaneko, Osamu Nakamura, Pham Van Thach, Hiroyuki Awano, Shigehiko Hasegawa, Masamichi Sakai
Publikováno v:
Physica Scripta. 98:045912
Spin-charge (SC) coupling is crucial in spintronics and the coupling mechanisms can be classified into bulk characteristic via spin-orbit interaction (SOI) or the interfacial characteristic provided by a junction formed by magnetic and nonmagnetic co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1526f82392eb72b57181cc902b062764
https://doi.org/10.1088/1402-4896/acc4f2
https://doi.org/10.1088/1402-4896/acc4f2
Autor:
Takashi Hamano, Takayuki Matsuda, Yuya Asamoto, Masao Noma, Shigehiko Hasegawa, Michiru Yamashita, Keiichiro Urabe, Koji Eriguchi
Publikováno v:
Applied Physics Letters. 120:031904
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2f08c11a92cf54fe96c5cb1c42ee1e8
https://doi.org/10.1063/5.0077147
https://doi.org/10.1063/5.0077147
Autor:
Satoru Kitsunai, Toshihiro Yoshizumi, Shigehiko Hasegawa, Masamichi Sakai, Osamu Nakamura, Daiki Fujii
Publikováno v:
Physics Letters A. 419:127740
This study addressed Hall effect measurements in the nonstoichiometric α-phase ytterbium dihydride (α-YbH2±δ) and β-phase ytterbium trihydride (β-YbH3−δ) films. We have prepared orthorhombic α-YbH2.05 and cubic β-YbH2.7 polycrystalline fil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d0aa3fbd058b8483fd683747e45b9e
https://doi.org/10.1016/j.physleta.2021.127740
https://doi.org/10.1016/j.physleta.2021.127740
Autor:
Masamichi Sakai, K. Niwa, O. Nakamura, Shigehiko Hasegawa, Y. Saito, Masashi Kosaka, T. Kirigane, T. Otomo, A. Takenouchi, Shinji Michimura
Publikováno v:
Journal of Crystal Growth. 468:701-704
We have performed refining process of yttrium (Y) by removal of fluorine (F) residually existing in commercial Y metal. It was demonstrated that combination of conventional plasma arc melting and mechanical surface polishing is a powerful method for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65d61e10d04cf7f3104dbdd049736698
https://doi.org/10.1016/j.jcrysgro.2016.11.091
https://doi.org/10.1016/j.jcrysgro.2016.11.091
Autor:
Shigehiko Hasegawa, K. Yabuki, Akira Kitajima, Koji Higuchi, Masamichi Sakai, H. Hirama, N. Aoki, Y. Saito, Osamu Nakamura
Publikováno v:
Journal of Crystal Growth. 468:714-717
With an aim of decreasing the temperature at which metallic Y reacts with H2 to form the semiconductor phase YH3 (γ phase), we employed Pd and Ni co-capping layers as catalysts. For this purpose, various types of Pd/Ni co-capping layers having diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52dc196c24f8d4759028387e4af4aeb5
https://doi.org/10.1016/j.jcrysgro.2016.10.001
https://doi.org/10.1016/j.jcrysgro.2016.10.001
Autor:
H. Hirama, K. Yabuki, Akira Kitajima, Y. Saito, Osamu Nakamura, Koji Higuchi, Shigehiko Hasegawa, Masamichi Sakai
Publikováno v:
Thin Solid Films. 624:175-180
With an aim of decreasing the temperature (Tγ) at which metallic Y reacts with H2 to form the semiconductor phase YH3 −δ, we employed Pd and Ni co-capping layers as catalysts, and compared the result with those obtained when employing Pd or Ni si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6d98bb781b6668f1ae37cb3e4d920e9
https://doi.org/10.1016/j.tsf.2017.01.025
https://doi.org/10.1016/j.tsf.2017.01.025
Autor:
Atsuo Kawasuso, A. Miyashita, Masaki Maekawa, Atsushi Yabuuchi, S. Hagiwara, S. Sakai, Shigehiko Hasegawa, Koichiro Wada
Publikováno v:
INTERNATIONAL CONFERENCE ON SCIENCE AND APPLIED SCIENCE (ICSAS) 2019.
Magnetism of Gadolinium-doped gallium nitride (GaGdN) depending on the Ga flux during crystal growth is investigated using magnetic Doppler broadening (MDB) measurements and M-H measurements. In Ga deficient condition, the matrix phase of GaGdN layer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88bf9821d9e42b61ecf227d9c2a3c183
https://doi.org/10.1063/1.5135850
https://doi.org/10.1063/1.5135850
Spin and charge transports with thermodynamic electron–hole correlation in nearly compensated metals
Publikováno v:
AIP Advances, Vol 10, Iss 7, Pp 075210-075210-10 (2020)
The long spin-relaxation time (τs) toward the large transport distance of spin current (SC) is desirable for practical applications of spintronic devices because spatially and temporally large spin coherence makes spin manipulation easier. Here, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04a72add013225f7b53d5247d56cc46f
https://doaj.org/article/d9638d88b45343e2aa3c9ef8777f758c
https://doaj.org/article/d9638d88b45343e2aa3c9ef8777f758c
Autor:
Tomoya Higuchi, Michiru Yamashita, Shigehiko Hasegawa, Keiichiro Urabe, Koji Eriguchi, Masao Noma
Publikováno v:
Surface and Coatings Technology. 377:124854
The surface modification of a boron nitride (BN) film by plasma exposure was investigated by means of nanoindentation analyses and molecular dynamics simulations. A μm-thick BN film composed of nanoscale sp3-bonded phases in the turbostratic (sp2-bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d66ba4efc15f1a4c48afe582acfb70a
https://doi.org/10.1016/j.surfcoat.2019.07.071
https://doi.org/10.1016/j.surfcoat.2019.07.071