The collapse of Landau levels under an electric field perpendicular to the magnetic field is one of the distinctive features of Dirac materials. So is the coupling of lattice deformations to the electronic degrees of freedom in the form of gauge fields, which allows the formation of pseudo-Landau levels from strain. We analyze the collapse of Landau levels induced by strain on realistic Weyl semimetals hosting anisotropic, tilted Weyl cones in momentum space. We perform first-principles calculations to establish the conditions on the external strain for the collapse of Landau levels in TaAs which can be experimentally accessed.

中文翻译：

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真实外尔半金属中应变引起的朗道能级坍塌

在垂直于磁场的电场下朗道能级的坍缩是狄拉克材料的显着特征之一。晶格变形与规范场形式的电子自由度的耦合也是如此，它允许从应变中形成伪朗道能级。我们分析了在动量空间中承载各向异性、倾斜的外尔锥体的真实外尔半金属上的应变引起的朗道能级崩溃。我们进行了第一性原理计算，以确定外部应变的条件，以使 TaAs 中的朗道能级崩溃，可以通过实验获得。