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14 papers · 2 filters
Suppression of electronic susceptibility in metal-Mott insulator alternating material, (Me-3,5-DIP)[Ni(dmit)2]2
Shigeki Fujiyama, A. Shitade, K. Kanoda +3
Frequency shifts and nuclear relaxations of 13C NMR of the metal-insulator alternating material, (Me-3,5-DIP)[Ni(dmit)2]2, are presented. The NMR absorption lines originating from…
Local Tunneling Spectroscopy across a Metamagnetic Critical Point in the Bi-layer Ruthenate Sr3Ru2O7
K. Iwaya, S. Satow, T. Hanaguri +8
The local spectroscopic signatures of metamagnetic criticality in Sr3Ru2O7 were explored using scanning tunneling microscopy (STM). Singular features in the tunneling spectrum were…
Spin-lattice instability to a fractional magnetization state in the spinel HgCr2O4
M. Matsuda, H. Ueda, A. Kikkawa +6
Magnetic systems are fertile ground for the emergence of exotic states when the magnetic interactions cannot be satisfied simultaneously due to the topology of the lattice - a situ…
Phase diagram for the one-dimensional Hubbard-Holstein model: A density-matrix renormalization group study
Masaki Tezuka, Ryotaro Arita, Hideo Aoki
Phase diagram of the Hubbard-Holstein model in the coexistence of electron-electron and electron-phonon interactions has been theoretically obtained with the density-matrix renorma…
Characterization of two-dimensional fermionic insulating states
Ryuichi Shindou, Ken-Ichiro Imura, Masao Ogata
Inspired by the duality picture between superconductivity and insulator in two spatial dimension, we conjecture that the order parameter, suitable for characterizing 2D fermionic i…
Electron Correlation Driven Heavy-Fermion Formation in LiV2O4
P. E. Jönsson, K. Takenaka, S. Niitaka +3
Optical reflectivity measurements were performed on a single crystal of the d-electron heavy-fermion (HF) metal LiV2O4. The results evidence the highly incoherent character of the…