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NQR and NMR spectra in odd-parity multipole material CeCoSi
Megumi Yatsushiro, Satoru Hayami
We theoretically study NQR and NMR spectra in the presence of odd-parity multipoles originating from staggered antiferromagnetic and antiferroquadrupole orderings. For the -elec…
Imaging the coupling between itinerant electrons and localised moments in the centrosymmetric skyrmion magnet GdRu2Si2
Yuuki Yasui, Christopher J. Butler, Nguyen Duy Khanh +8
Magnetic skyrmions were thought to be stabilised only in inversion-symmetry breaking structures, but skyrmion lattices were recently discovered in inversion symmetric Gd-based comp…
Noncoplanar multiple- spin textures by itinerant frustration: Effects of single-ion anisotropy and bond-dependent anisotropy
Satoru Hayami, Yukitoshi Motome
We theoretically investigate multiple- spin textures, which are composed of superpositions of spin density waves with different wave numbers, for an effective spin model of cent…
Square skyrmion crystal in centrosymmetric itinerant magnets
Satoru Hayami, Yukitoshi Motome
We theoretically investigate the origin of the square-type skyrmion crystal in centrosymmetric itinerant magnets, motivated from the recent experimental finding in GdRuSi […
Degeneracy Lifting of Néel, Bloch, and Anti-Skyrmion Crystals in Centrosymmetric Tetragonal Systems
Satoru Hayami, Ryota Yambe
A skyrmion crystal has internal degrees of freedom in terms of vorticity and helicity, which gives rise to fascinating types of skyrmion phases (Néel, Bloch, and anti-skyrmion). We…
Bottom-up design of spin-split and reshaped electronic band structures in spin-orbit-coupling free antiferromagnets: Procedure on the basis of augmented multipoles
Satoru Hayami, Yuki Yanagi, Hiroaki Kusunose
We propose an efficient microscopic design procedure of electronic band structures having intrinsic spin and momentum dependences in spin-orbit-coupling free antiferromagnets. Our…