| Heat transport of electron-doped Cobaltates (2006) | |||||||||
Abstract | |||||||||
| Within the t-J model, the heat transport of electron-doped cobaltates is studied based on the fermion-spin theory. It is shown that the temperature dependent thermal conductivity is characterized by the low temperature peak located at a finite temperature. The thermal conductivity increases monotonously with increasing temperature at low temperatures T $$ 0.1$J$, in qualitative agreement with experimental result observed from Na$_{x}$CoO$_{2}$ .. Comment: 4 pages, 1 fig, corrected typos, accepted for publication in Commun. Theor. Phys | |||||||||
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