中文摘要：

在 t-J 模型以内，做电子的钴 ates 的热运输基于费米子纺纱理论被学习。这被显示出温度依赖者热电导率被在有限温度定位的低温度的山峰描绘。Thethermal 电导率与在低温度的 T 【 0.1J 增加温度单调地增加，然后与为更高的温度 T 】 增加温度减少 0.1 J，在对从 Na_xCoO_2 观察的试验性的结果的质的同意。

英文摘要：

Within the t-J model, the heat transport of electron-doped cobaltates is studied based on the fermionspin 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, and then decreases with increasing temperature for higher temperatures T 〉 0.1 J, in qualitative agreement with experimental result observed from NaxCoO2.