935 citations · 4k across the 51 of their papers we have counts for
51 papers
Dzyaloshinskii-Moriya interaction in strongly spin-orbit-coupled systems: General formula and application to topological and Rashba materials
Yuto Hayakawa, Yusuke Imai, Hiroshi Kohno
We theoretically study the Dzyaloshinskii-Moriya interaction (DMI) mediated by band electrons with strong spin-orbit coupling (SOC). We first derive a general formula for the coeff…
Topological spin Hall effect in antiferromagnets driven by vector Néel chirality
Kazuki Nakazawa, Koujiro Hoshi, Jotaro J. Nakane +2
Spin Hall effect of spin-texture origin is explored theoretically for antiferromagnetic (AF) metals. It is found that a vector chirality formed by the Néel vector gives rise to a t…
Current-Induced Spin-Wave Doppler Shift in Antiferromagnets
Jotaro J. Nakane, Hiroshi Kohno
We theoretically study the spin dynamics in antiferromagnets (AFs)under the influence of an electric current. We identify two different sources of spin-transfer torques that stem f…
Magnetic Excitation of t-J Model with Quasi-One-Dimensional Fermi Surface -- Possible Relevance to LSCO Systems
Hiroyuki Yamase, Hiroshi Kohno
On the basis of the picture of a quasi-one-dimensional (q-1d) Fermi surface (FS), recently proposed by authors for LSCO systems, spin excitation spectrum, Im chi(q,omega), is calcu…
Possible Quasi-One-Dimensional Fermi Surface in La_{2-x}Sr_{x}CuO_4
Hiroyuki Yamase, Hiroshi Kohno
To reconcile the two experimental findings on La_{2-x}Sr_{x}CuO_4, namely, Fermi surface (FS) observed by angle-resolved photoemission spectroscopy and sharp incommensurate magneti…
Instability toward Formation of Quasi-One-Dimensional Fermi Surface in Two-Dimensional t-J Model
Hiroyuki Yamase, Hiroshi Kohno
We show within the slave-boson mean field approximation that the two-dimensional t-J model has an intrinsic instability toward forming a quasi-one-dimensional (q-1d) Fermi surface.…