49 citations · 229 across the 13 of their papers we have counts for
13 papers
Interplay of Magnetic Order, Structural Stability, and Orbital Ordering in BaFe2X3 (X = S and Se)
Kunihiko Yamauchi, Takuya Aoyama, Kenya Ohgushi
BaFe2X3 (X= S and Se) are quasi-one-dimensional Mott insulators with a ladder structure that exhibit Stripe- and Block-type antiferromagnetic order, respectively. The ladder arrang…
Magnetotransport Properties of Iron-Based Ladder Compounds BaFe2S3 and BaFe2Se3 under High Pressure
Takuya Aoyama, Kenya Ohgushi
The magnetotransport properties of the iron-based ladder compounds BaFe2S3 and BaFe2Se3 under various pressures were investigated. BaFe2S3 had a T^2 dependence in electrical resist…
Piezomagnetic Properties in Altermagnetic MnTe
Takuya Aoyama, Kenya Ohgushi
We examined the piezomagnetic effect in an antiferromagnet composed of MnTe, which is a candidate material for altermagnetism with a high critical temperature. We observed that the…
Light-induced magnetization driven by interorbital charge motion in a spin-orbit assisted Mott insulator alpha-RuCl3
T. Amano, Y. Kawakami, H. Itoh +12
In a honeycomb-lattice spin-orbit assisted Mott insulator α-RuCl3, an ultrafast magnetization is induced by circularly polarized excitation below the Mott gap. Photo-carriers play…
Pressure-induced superconductivity in iron-based spin-ladder compound BaFe2+δ(S1-Sex)3
H. Takahashi, R. Kikuchi, C. Kawashima +3
The iron-based superconductors had a significant impact on condensed matter physics. They have a common structural motif of a two-dimensional square iron lattice and exhibit fruitf…
Strongly electron-correlated semimetal RuI with a layered honeycomb structure
Kazuhiro Nawa, Yoshinori Imai, Youhei Yamaji +13
A polymorph of RuI synthesized under high pressure was found to have a two-layered honeycomb structure. The resistivity of RuI exhibits a semimetallic behavior, in contrast…
Magnetism of Kitaev spin-liquid candidate material RuBr
Yoshinori Imai, Kazuhiro Nawa, Yasuhiro Shimizu +16
The ruthenium halide -RuCl is a promising candidate for a Kitaev spin liquid. However, the microscopic model describing -RuCl is still debated partly because of a…
Dichotomy Between Orbital and Magnetic Nematic Instabilities in BaFe2S3
Suguru Hosoi, Takuya Aoyama, Kousuke Ishida +9
Nematic orders emerge nearly universally in iron-based superconductors, but elucidating their origins is challenging because of intimate couplings between orbital and magnetic fluc…
Hydrated lithium intercalation into the Kitaev spin liquid candidate material RuCl
Yoshinori Imai, Katsuya Konno, Yoshinao Hasegawa +2
We study on transport and magnetic properties of hydrated and lithium-intercalated -RuCl, LiRuClHO, for investigating the effect on mobile-carrier doping…
Polar State induced by Block-type Lattice Distortions in BaFe2Se3 with Quasi-One-Dimensional Ladder Structure
Takuya Aoyama, Satoshi Imaizumi, Takuya Togashi +6
Temperature dependent crystal structures of the quasi-one-dimensional ladder material BaFe2Se3 are examined. Combining the optical second harmonic generation (SHG) experiments and…
Quantum paramagnet near spin-state transition
K. Tomiyasu, N. Ito, R. Okazaki +11
Spin-state transition, also known as spin crossover, plays a key role in diverse systems, including minerals and biological materials. In theory, the boundary range between the low…
Orbital order and fluctuations in the two-leg ladder materials BaFe ( = S and Se) and CsFeSe
Kou Takubo, Yuichi Yokoyama, Hiroki Wadati +10
The electronic structure of BaFe ( = S and Se) and CsFeSe in which two-leg ladders are formed by the Fe sites are studied by means of x-ray absorption and resonan…
The magnetic precursor of the pressure-induced superconductivity in Fe-ladder compound
Songxue Chi, Yoshiya Uwatoko, Huibo Cao +4
The pressure effects on the antiferromagentic orders in iron-based ladder compounds CsFeSe and BaFeS have been studied using neutron diffraction. With identical cry…