Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Kota, Yohei"'
Autor:
Kubota, Takahide, Takano, Daichi, Kota, Yohei, Mohanty, Shaktiranjan, Ito, Keita, Matsuki, Mitsuhiro, Hayashida, Masahiro, Sun, Mingling, Takeda, Yukiharu, Saitoh, Yuji, Bedanta, Subhankar, Kimura, Akio, Takanashi, Koki
Perpendicular magnetization is essential for high-density memory application using magnetic materials. High-spin polarization of conduction electrons is also required for realizing large electric signals from spin-dependent transport phenomena. Heusl
Externí odkaz:
http://arxiv.org/abs/2108.11547
Publikováno v:
Adv. Mater. 2104645 (2021)
{\alpha}-Sn with a diamond-type crystal structure provides an ideal avenue to investigate novel topological properties owing to its rich diagram of topological phases and simple elemental material structure. Thus far, however, realisation of high-qua
Externí odkaz:
http://arxiv.org/abs/2105.13884
Autor:
Okabayashi, Jun, Miura, Yoshio, Kota, Yohei, Suzuki, Kazuya, Sakuma, Akimasa, Mizukami, Shigemi
Publikováno v:
Scientific Reports 10, 8744 (2020)
Mn-based alloys exhibit unique properties in the spintronics materials possessing perpendicular magnetic anisotropy (PMA) beyond the Fe and Co-based alloys. It is desired to figure out the quantum physics of PMA inherent to Mn-based alloys, which hav
Externí odkaz:
http://arxiv.org/abs/2005.03249
Autor:
Suto, Hirofumi, Nakatani, Tomoya, Kota, Yohei, Asam, Nagarjuna, Iwasaki, Hitoshi, Amemiya, Kenta, Mitsui, Takaya, Sakai, Seiji, Li, Songtian, Sakuraba, Yuya
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 September 2022 557
Autor:
Kota, Yohei, Sakuma, Akimasa
Publikováno v:
J. Phys. Soc. Jpn. 83, 034715 (2014)
Magnetocrystalline anisotropy in transition metal alloys (FePt, CoPt, FePd, MnAl, MnGa, and FeCo) was studied using first-principles calculations to elucidate its specific mechanism. The tight-binding linear muffin-tin orbital method in the local spi
Externí odkaz:
http://arxiv.org/abs/1307.5961
We calculated the magnetic anisotropy constant Ku of MnBi using a first principles approach, and obtained a negative Ku in agreeable with experimental results. Furthermore, we also found a band filling dependence indicating that a slight decrease in
Externí odkaz:
http://arxiv.org/abs/1304.5307
Autor:
Kota, Yohei, Sakuma, Akimasa
Publikováno v:
Applied Physics Express 5 (2012) 113002
We investigate the magnetocrystalline anisotropy (MCA) energy of tetragonal distorted FeCo alloys depending on the degree of order by first-principles electronic structure calculation combined with the coherent potential approximation. The obtained r
Externí odkaz:
http://arxiv.org/abs/1210.4386
Publikováno v:
J. Appl. Phys. 105, 07B716 (2009)
The electrical resistivities of Fe-Co alloys owing to random alloy disorder are calculated using the Kubo-Greenwood formula. The obtained electrical esistivities agree well with experimental data quantitatively at low temperature. The spin-polarizati
Externí odkaz:
http://arxiv.org/abs/0903.3842
Publikováno v:
IEEE TRANSACTIONS ON MAGNETICS, Volume 44, Issue 11, Part 1, Nov. 2008 Page(s):3131 - 3133
We study the electronic states of the magnetically ordered Mn3Pt alloy within the density functional theory. Mn3Pt has been believed that one third of Mn atoms have no magnetic moment in an antiferromagnetic phase (so-called the F-phase) realized in
Externí odkaz:
http://arxiv.org/abs/0806.3627
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