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9 papers · 2 filters
Charge-ordered state satisfying the Anderson condition in LiRh2O4 arising from local dimer order
Manabu Shiomi, Keita Kojima, Naoyuki Katayama +8
We report on the charge-ordered structure of LiRh2O4 arising below the metal-insulator transition at 170 K. Structural studies using synchrotron X-rays have revealed that the charg…
Electric-field control of magnetic anisotropies: applications to Kitaev spin liquids and topological spin textures
Shunsuke C. Furuya, Masahiro Sato
Magnetic anisotropies often originate from the spin-orbit coupling and determine magnetic ordering patterns. We develop a microscopic theory for DC electric-field controls of magne…
Determination of the magnetic q vectors in the heavy fermion superconductor Ce3PtIn11
Naoki Shioda, Kazuki Kumeda, Hideto Fukazawa +6
An analysis with transferred hyperfine field has been performed on the spectra of the In nuclear quadrupole resonance experiments of heavy fermion superconductor CePt…
Spin- impurities with XXZ anisotropy in a spin-1/2 Heisenberg chain
Ayushi Singhania, Masahiro Kadosawa, Yukinori Ohta +2
We study the effect of anisotropy of spin- impurities on an antiferromagnetic SU(2) Heisenberg chain. The magnetic impurities are assumed to have an XXZ-type anisotropic exchang…
Third-harmonic generation in excitonic insulators
Tetsuhiro Tanabe, Tatsuya Kaneko, Yukinori Ohta
We study third-harmonic generation (THG) in an excitonic insulator (EI) described in a two-band correlated electron model. Employing the perturbative expansion with respect to the…
Hybridization-gap Formation and Superconductivity in the Pressure-induced Semimetallic Phase of the Excitonic Insulator TaNiSe
Kazuyuki Matsubayashi, Hidekazu Okamura, Takashi Mizokawa +19
The excitonic insulator TaNiSe experiences a first-order structural transition under pressure from rippled to flat layer-structure at Ps = 3 GPa, which drives the system fr…