237 citations · 459 across the 27 of their papers we have counts for
13 papers · 1 filter
Tunnel magnetoresistance effect with a Cr-doped altermagnet
Katsuhiro Tanaka, Takuya Nomoto, Ryotaro Arita
Antiferromagnets can have a finite spin-polarization in the momentum space when their magnetic structure breaks the macroscopic time-reversal symmetry. This spin-polarization can p…
Emergent toroidal induction in a polar Weyl ferromagnet
Yuuri Suzuki, Yukako Fujishiro, Masataka Mogi +12
Spin-orbit coupling (SOC) underpins modern spintronics by enabling the electrical generation of spin torques. Its reciprocal counterpart, in which magnetization dynamics produce el…
Carrier-density dependence of magnetotransport in correlated Dirac semimetal CaIrO
Rinsuke Yamada, Jun Fujioka, Minoru Kawamura +8
We report the carrier density dependence of the magnetotransport property in the correlated Dirac semimetal CaIrO. In the dilute carrier density region ( $\sim 2.2 \…
Systematic Magnetic Structure Generation Based on Oriented Spin Space Groups: Formulation, Applications, and High-Throughput First-Principles Calculations
Takuya Nomoto, Kohei Shinohara, Hikaru Watanabe +1
We propose a framework for generating magnetic structures, inspired by the concept of oriented spin space groups (SSGs): magnetic structures are first generated as totally symmetri…
Unraveling a chemical-bond-driven root of topology in three-dimensional chiral crystals
Shungo Aoyagi, Shunsuke Kitou, Yuiga Nakamura +6
Chirality manifests across multiple scales, yielding unique phenomena that break mirror symmetry. In chiral materials, unexpectedly large spin-filtering or photogalvanic effects ha…
Symmetry analysis of cross-circular and parallel-circular Raman optical activity
Hikaru Watanabe, Rikuto Oiwa, Gakuto Kusuno +2
The Raman scattering regarding the circularly-polarized incident and scattered lights is closely related to the circular activity of a given system. We investigate the symmetry of…
Spin Models and Cluster Multipole Method: Application to Kagome Magnets
Juba Bouaziz, Takuya Nomoto, Ryotaro Arita
We present a multi-scale computational approach that combines atomistic spin models with the cluster multipole (CMP) method. The CMP method enables a systematic and accurate genera…
Symmetry-adapted closest Wannier modeling based on complete multipole basis set
Rikuto Oiwa, Akane Inda, Satoru Hayami +3
We have developed a method to construct a symmetry-adapted Wannier tight-binding model based on the closest Wannier formalism and the symmetry-adapted multipole theory. Since the s…
Enhancement of the Thermoelectric Figure of Merit in the Dirac Semimetal CdAs by Band-Structure and -Filling Control
Markus Kriener, Takashi Koretsune, Ryotaro Arita +2
Topological materials attract a considerable research interest because of their characteristic band structure giving rise to various new phenomena in quantum physics. Beside this,…
Nernst effect of high-mobility Weyl electrons in NdAlSi enhanced by a Fermi surface nesting instability
Rinsuke Yamada, Takuya Nomoto, Atsushi Miyake +7
The thermoelectric Nernst effect of solids converts heat flow to beneficial electronic voltages. Here, using a correlated topological semimetal with high carrier mobility in pr…
Gate-tunable ferromagnetism in a van der Waals magnetic semimetal
Hideki Matsuoka, Shun Kajihara, Yue Wang +2
Magnetic semimetals form an attractive class of materials because of the non-trivial contributions of itinerant electrons to magnetism. Due to their relatively low-carrier-density…
Topological Kagome magnet Co3Sn2S2 thin flakes with high electron mobility and large anomalous Hall effect
M. Tanaka, Y. Fujishiro, M. Mogi +9
Magnetic Weyl semimetals attract considerable interest not only for their topological quantum phenomena but also as an emerging materials class for realizing quantum anomalous Hall…
Devil's staircase transition of the electronic structures in CeSb
Kenta Kuroda, Y. Arai, N. Rezaei +21
Solids with competing interactions often undergo complex phase transitions with a variety of long-periodic modulations. Among such transition, devil's staircase is the most complex…