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53 papers · 1 filter
Kondo Effect in an Electron System with Dynamical Jahn-Teller Impurity
Takashi Hotta
We investigate how Kondo phenomenon occurs in the Anderson model dynamically coupled with local Jahn-Teller phonons. It is found that the total angular moment composed of electron…
Coexistence of vector chiral order and Tomonaga-Luttinger liquid in the frustrated three-leg spin tube in a magnetic field
Masahiro Sato
The frustrated three-leg antiferromagnetic spin-1/2 tube with a weak interchain coupling in a magnetic field is investigated by means of Abelian bosonization techniques. It is clea…
New Type Phase Transition of Li2RuO3 with Honeycomb Structure
Yoko Miura, Yukio Yasui, Masatoshi Sato +2
A new-type structural transition has been found in Li2RuO3 with honeycomb lattice of edge-sharing RuO6-octahedra. With decreasing temperature T, the electrical resistivity exhibits…
Finite-temperature phase transitions in quasi-one-dimensional molecular conductors
Hitoshi Seo, Yukitoshi Motome, Takeo Kato
Phase transitions in 1/4-filled quasi-one-dimensional molecular conductors are studied theoretically on the basis of extended Hubbard chains including electron-lattice interactions…
Successive Magnetic Transitions of the Kagome Staircase Compound Co3V2O8 Studied in Various Magnetic Fields
Yukio Yasui, Yusuke Kobayashi, Minoru Soda +4
For the spin-3/2 kagome staircase system Co3V2O8, magnetic field (H)-temperature (T) phase diagrams have been constructed for the fields along three principal directions up to 5 T,…
Analysis of resonant inelastic x-ray scattering at the edge in NiO
Manabu Takahashi, Jun-ichi Igarashi, Takuji Nomura
We analyze the resonant inelastic x-ray scattering (RIXS) spectra at the Ni edge in an antiferromagnetic insulator NiO by applying the theory developed by the present authors.…