论文标题
杂质对歇斯里症的磁导量：全息方法
Impurity Effect on Hysteric Magnetoconductance: Holographic Approach
论文作者
论文摘要
在本文中，我们研究了使用仪表/重力双重性从弱定位阶段到歇斯底里磁导量相的歇斯底里相变。这种歇斯底里的相是由与Z2对称性和具有动量弛豫的2+1维系统中的Z2对称性和时间逆转对称性相关的自发磁化触发的。我们得出了描述非宫颈和歇斯底里相的热电传导率公式。在低温下，这种磁性传统显示出拓扑绝缘体表面状态的相似相变。我们还获得了Seebeck系数和Nernst信号的磁滞曲线。事实证明，我们的杂质参数会改变双重系统的磁性。通过显示易感性增加和随着杂质参数的增加，这是合理的。
In this paper we study a hysteric phase transition from weak localization phase to hysteric magnetoconductance phase using gauge/gravity duality. This hysteric phase is triggered by a spontaneous magnetization related to Z2 symmetry and time reversal symmetry in a 2+1 dimensional system with momentum relaxation. We derive thermoelectric conductivity formulas describing non-hysteric and hysteric phases. At low temperatures, this magneto-conductance shows similar phase transitions of topological insulator surface states. We also obtain hysteresis curves of Seebeck coefficient and Nernst signal. It turns out that our impurity parameter changes magnetic properties of the dual system. This is justified by showing increasing susceptibility and the spontaneous magnetization with increasing impurity parameter.
