133 citations · 693 across the 21 of their papers we have counts for
4 papers · 1 filter
Nuclear spin pumping by pulling effect
Y. Ohnuma, S. Maekawa, M. Matsuo
The nuclear-to-electron spin angular momentum conversion via hyperfine coupling in a normal metal (NM)/ferromagnet (FM) bilayer system is theoretically investigated by using the no…
Magnonic Noise and Wiedemann-Franz Law
Kouki Nakata, Yuichi Ohnuma, Mamoru Matsuo
We theoretically establish mutual relations among magnetic momentum, heat, and fluctuations of propagating magnons in a ferromagnetic insulating junction in terms of noise and the…
Dirac-Surface-State Modulated Spin Dynamics in a Ferrimagnetic Insulator at Room Temperature
Chi Tang, Qi Song, Cui-Zu Chang +10
This work demonstrates dramatically modified spin dynamics of magnetic insulator (MI) by the spin-momentum locked Dirac surface states of the adjacent topological insulator (TI) wh…
Observation of gyromagnetic reversal
Masaki Imai, Yudai Ogata, Hiroyuki Chudo +6
We report direct observation of gyromagnetic reversal, which is the sign change of gyromagnetic ratio in a ferrimagnet HoFeO, by using the Barnett effect measurement…