5 papers
Comparative study of the density matrix embedding theory for the Hubbard models
Masataka Kawano, Chisa Hotta
We examine the performance of the density matrix embedding theory (DMET) recently proposed in [G. Knizia and G. K.-L. Chan, Phys. Rev. Lett. 109, 186404 (2012)]. The core of this m…
Discovering momentum-dependent magnon spin texture in insulating antiferromagnets: Role of the Kitaev interaction
Masataka Kawano, Chisa Hotta
We theoretically show that the Kitaev interaction generates a novel class of spin texture in the excitation spectrum of the antiferromagnetic insulator found in the Kitaev-Heisenbe…
Thermal Hall effect and topological edge states in a square lattice antiferromagnet
Masataka Kawano, Chisa Hotta
We show that the two dimensional spatial inversion-symmetry (SIS) broken square lattice antiferromagnet with easy-plane spin anisotropy exhibits a thermal Hall effect and the edge…
Designing Rashba-Dresselhaus effect in magnetic insulators
Masataka Kawano, Yoshinori Onose, Chisa Hotta
One of the major strategies to control magnetism in spintronics is to utilize the coupling between electron spin and its orbital motion. The Rashba and Dresselhaus spin-orbit coupl…
Microwave non-reciprocity of magnon excitations in a non-centrosymmetric antiferromagnet BaMnGeO
Y. Iguchi, Y. Nii, M. Kawano +3
We have investigated the microwave non-reciprocity for a non-centrosymmetric antiferromagnet BaMnGeO. The magnon modes expected by the conventional spin wave theory for…