arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1102.2941cond-mat.str-el
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统计通量与Curie-Weiss金属态

Statistical fluxes and the Curie-Weiss metal state

Kai Wu, Zheng-Yu Weng, Jan Zaanen

摘要:

我们预测了一个新的物质状态在三角t-J模型在高掺杂制度。由于量子统计作用的改变,自旋被“定域”在统计朗道轨道中,而载流子形成玻色金属,通过随机规范场感受自旋。与费米液体状态相反,这种状态自然地表现出居里-外斯磁化率、大的热电势和线性温度电阻率,解释了在$x>0.5.$的\textrm{Na} $_{x}$ \textrm{CoO} $_{2}$的物理。

英文摘要:

We predict a new state of matter in the triangular t-J model in a high doping regime. Due to the altered role of quantum statistics the spins are `localized' in statistical Landau orbits, while the charge carriers form a Bose metal that feels the spins through random gauge fields. In contrast to the Fermi-liquid state, this state naturally exhibits a Curie-Weiss susceptibility, large thermopower, and linear-temperature resistivity, explaining the physics of \textrm{Na}$_{x}$\textrm{CoO}$_{2}$ at $x>0.5.$ A `smoking gun' prediction for neutron scattering is presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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