arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1108.2298cond-mat.mes-hall
收藏

利用库仑阻力探测拓扑激子凝聚

Probing the topological exciton condensate via Coulomb drag

M. P. Mink, H. T. C. Stoof, R. A. Duine, Marco Polini, G. Vignale

摘要:

最近预测了在拓扑绝缘体薄膜中激子凝聚的开始。我们计算了这种转变的临界温度,考虑到屏蔽效应。此外,我们表明,接近这个转变可以探测通过测量作为温度的函数的薄膜的表面之间的库仑阻力。该电阻率在接近激子-凝聚态时显示出上升。

英文摘要:

The onset of exciton condensation in a topological insulator thin film was recently predicted. We calculate the critical temperature for this transition, taking into account screening effects. Furthermore, we show that the proximity to this transition can be probed by measuring the Coulomb drag resistivity between the surfaces of the thin film as a function of temperature. This resistivity shows an upturn upon approaching the exciton-condensed state.

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。

↑