单砷化镱的压力诱导表面态和万尼尔电荷中心

IF 0.6 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Indian Journal of Pure & Applied Physics Pub Date : 2023-01-01 DOI:10.56042/ijpap.v61i9.3148

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引用次数: 0

摘要

我们证明了XMR材料单砷化镱(YbAs)在静水压力为20gpa时从平凡到非平凡的拓扑相转变，并在结构相变压力下保持其拓扑特征。我们在20 GPa的X高对称点观测到接近费米能级的能带反转，并考虑自旋轨道耦合(SOC)效应，用能带奇偶证实了这一点。讨论了yba中表面态和体带结构的演变。

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Pressure Induced Surface States and Wannier Charge Centers in Ytterbium Monoarsenide

We demonstrate that the XMR material ytterbium monoarsenide (YbAs) shows transitions from a trivial to a non-trivial topological phase with hydrostatic pressure of 20 GPa and maintains its topological character up to structural phase transition pressure. We observed band inversions close to the Fermi level at the X high symmetry point at 20 GPa and band parities are used to confirm the same with consideration of Spin-orbit coupling (SOC) effect. The evolution of the surface states and the bulk band structure in YbAs are discussed.

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来源期刊

Indian Journal of Pure & Applied Physics 物理-物理：综合

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

7 months

期刊介绍： Started in 1963, this journal publishes Original Research Contribution as full papers, notes and reviews on classical and quantum physics, relativity and gravitation; statistical physics and thermodynamics; specific instrumentation and techniques of general use in physics, elementary particles and fields, nuclear physics, atomic and molecular physics, fundamental area of phenomenology, optics, acoustics and fluid dynamics, plasmas and electric discharges, condensed matter-structural, mechanical and thermal properties, electronic, structure, electrical, magnetic and optical properties, cross-disciplinary physics and related areas of science and technology, geophysics, astrophysics and astronomy. It also includes latest findings in the subject under News Scan.