32 citations · 32 across the 3 of their papers we have counts for
5 papers
Impact of lithium composition on the thermoelectric properties of the layered cobalt oxide system LixCoO2
T. Motohashi, Y. Sugimoto, Y. Masubuchi +5
Thermoelectric properties of the layered cobalt oxide system LixCoO2 were investigated in a wide range of Li composition, 0.98 >= x >= 0.35. Single-phase bulk samples of LixCoO2 we…
Self-organized quantum transitions in a spin-electron coupled system
W. Koshibae, N. Furukawa, N. Nagaosa
We investigate quantum dynamics of the excited electronic states in the double-exchange model at half-filling by solving coupled equations for the quantum evolution of electrons an…
Low energy electronic states and triplet pairing in layered cobaltates
G. Khaliullin, W. Koshibae, S. Maekawa
The structure of the low-energy electronic states in layered cobaltates is considered starting from the Mott insulating limit. We argue that the coherent part of the wave-functions…
Magnetic correlations in the Hubbard model on triangular and Kagome lattices
N. Bulut, W. Koshibae, S. Maekawa
In order to study the magnetic properties of frustrated metallic systems, we present Quantum Monte Carlo data on the magnetic susceptibility of the Hubbard model on triangular and…
Kagomé in triangular lattice: electronic state of CoO_2 layer with hexagonal structure
W. Koshibae, S. Maekawa
The electronic state in layered cobalt oxides with hexagonal structure is examined. We find that the electronic structure reflects the nature of the Kagomé lattice hidden in the Co…