大熊 信之

JSPS Research Fellow (PD) at Yukawa Institute for Theoretical Physics, Kyoto University
日本学術振興会PD, 京都大学基礎物理学研究所所属
OKUMA, Nobuyuki
大熊 信之
Email address:
okuma_at_hosi.phys.s.u-tokyo.ac.jp
( _at_ → @ )

Research interests:
Magnon transport, topological materials, spintronics

Papers:
1. Nobuyuki Okuma and Masatoshi Sato
"Topological Phase Transition driven by Infinitesimal Instability: Majorana Fermions in Non-Hermitian Spintronics "
arXiv:1904.06355
To appear in Physical Review Letters

2. Nobuyuki Okuma, Masatoshi Sato, and Ken Shiozaki
"Topological classification under nonmagnetic and magnetic point group symmetry: Application of real-space Atiyah-Hirzebruch spectral sequence to higher-order topology"

3. Nobuyuki Okuma
"Nonreciprocal superposition state in antiferromagnetic optospintronics"

4. Nobuyuki Okuma
"
Magnon Spin-Momentum Locking: Various Spin Vortices and Dirac magnons in Noncollinear Antiferromagnets"
arXiv:1702.02575

5. Nobuyuki Okuma, Massoud Ramezani Masir, and Allan H. MacDonald
“Theory of the spin-Seebeck effect at a topological-insulator/ferromagnetic-insulator interface”

Phys. Rev. B 95, 165418 (2017).
arXiv:1612.04916

6. Nobuyuki Okuma and Kentaro Nomura
"Microscopic derivation of magnon spin current in topological insulator/ferromagnet heterostructure"
Phys. Rev. B 95, 115403 (2017).
arXiv:1610.03636

7. Nobuyuki Okuma and Masao Ogata,
"Unconventional Spin Hall Effect and Axial Current Generation in a Dirac Semimetal"
Phys. Rev. B 93, 140205(R) (2016).
arXiv:1602.01179

8.
Nobuyuki Okuma and Masao Ogata,
"Long-range Coulomb interaction effects on the surface Dirac electron system of a three-dimensional topological insulator"
J. Phys. Soc. Jpn. 84, 034710 (2015).
arXiv:1412.0797

Proceedings:
1. Nobuyuki Okuma and Masao Ogata,
"Study of spin transport in Dirac systems"
J. Phys. Conf. Ser. 603, 012018 (2015).


サブページ (2): Award CV