Vanishing Hall Conductance in the Phase Glass Bose Metal at Zero Temperature
Vanishing Hall Conductance in the Phase Glass Bose Metal at Zero Temperature
复制标题
零温下相位玻璃玻色金属中的消失霍尔电导
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
P. Phillips
中科院分区：
文献类型：
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作者：
Julian May;P. Phillips
部分受数值模拟[ky，kosterlitz 1，kosterlitz 2]的启发，数值模拟揭示了在规范或相位玻璃中产生缺陷的能量为$L^{ heta}$与$ heta<0$的2D，从而意味着一个消失的刚度，我们重新检查这些类型的模型的玻色金属的相关性，根据新的实验[kapsym，阿米蒂奇]，这表明霍尔电导是零的金属状态，破坏了从超导体到绝缘体的过渡在2D样品。由于相位玻璃模型中的粒子-空穴对称性，我们发现在高斯能级下，在相位玻璃背景中的玻色子激发不产生霍尔电导。此外，这一结果在相互作用中的微扰理论中的任何阶都成立。我们表明，当粒子-空穴对称性被打破，霍尔电导打开与相同的幂律的纵向电导。这种预测可以通过将接地平面应用于2D样本来实验验证。
Motivated in part by the numerical simulations [ky,kosterlitz1,kosterlitz2] which reveal that the energy to create a defect in a gauge or phase glass scales as $L^{ heta}$ with $ heta<0$ for 2D, thereby implying a vanishing stiffness, we re-examine the relevance of these kinds of models to the Bose metal in light of the new experiments [kapsym,armitage] which reveal that the Hall conductance is zero in the metallic state that disrupts the transition from the superconductor to the insulator in 2D samples. Because of the particle-hole symmetry in the phase glass model, we find that bosonic excitations in a phase glass background generate no Hall conductance at the Gaussian level. Furthermore, this result persists to any order in perturbation theory in the interactions. We show that when particle-hole symmetry is broken, the Hall conductance turns on with the same power law as does the longitudinal conductance. This prediction can be verified experimentally by applying a ground plane to the 2D samples.