重Weyl半金属中违反宇称的杂化

IF 3.2 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physical Review B Pub Date : 2017-10-26 DOI:10.1103/PhysRevB.97.155134

P. Chang, P. Coleman

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引用次数: 18

摘要

我们引入了一个简单的模型来描述非中心对称重费米子化合物在奇偶混合、现场杂化作用下重Weyl半金属的形成。相互作用驱动的重Weyl半金属的一个关键方面是表面近道击穿的发展，这有望引起费米弧和Weyl回旋加速器轨道的温度依赖重新配置，通过手性体态将它们连接起来。我们的理论预测了低温下量子振荡的强烈温度依赖转换。除了表面近道击穿的影响外，重Weyl半金属中的重整化效应将出现在各种热力学和输运测量中。

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Parity-violating hybridization in heavy Weyl semimetals

We introduce a simple model to describe the formation of heavy Weyl semimetals in non-centrosymmetric heavy fermion compounds under the influence of a parity-mixing, onsite hybridization. A key aspect of interaction-driven heavy Weyl semimetals is the development of surface Kondo breakdown, which is expected to give rise to a temperature-dependent re-configuration of the Fermi arcs and the Weyl cyclotron orbits which connect them via the chiral bulk states. Our theory predicts a strong temperature dependent transformation in the quantum oscillations at low temperatures. In addition to the effects of surface Kondo breakdown, the renormalization effects in heavy Weyl semimetals will appear in a variety of thermodynamic and transport measurements.

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来源期刊

Physical Review B PHYSICS, CONDENSED MATTER-

CiteScore

6.30

自引率

32.40%

发文量

4177

期刊介绍： Physical Review B (PRB) is the world’s largest dedicated physics journal, publishing approximately 100 new, high-quality papers each week. The most highly cited journal in condensed matter physics, PRB provides outstanding depth and breadth of coverage, combined with unrivaled context and background for ongoing research by scientists worldwide. PRB covers the full range of condensed matter, materials physics, and related subfields, including: -Structure and phase transitions -Ferroelectrics and multiferroics -Disordered systems and alloys -Magnetism -Superconductivity -Electronic structure, photonics, and metamaterials -Semiconductors and mesoscopic systems -Surfaces, nanoscience, and two-dimensional materials -Topological states of matter