阶梯结构衬底上石墨烯的局域电子态

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Moscow University Physics Bulletin Pub Date : 2025-05-11 DOI:10.3103/S0027134925700092

G. A. Krasukov, O. V. Pavlovsky

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引用次数: 0

摘要

研究了石墨烯在衬底上产生空间非均匀质量间隙的有效场论模型中产生的局域费米子态。结果表明，在基底不均匀的阶梯式结构中，手性质量在不同阶梯式上的符号相反，会产生无质量态和有质量费米子态。这些状态的质谱取决于衬底产生的质量间隙的大小，以及阶地的宽度、衬底结构中阶地的数量和过渡阶的宽度。

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Localized Electronic States of Graphene on a Substrate with a Terrace-Stepped Structure

The localized fermionic states arising in an effective field theory model of graphene on the substrate generating a spatially inhomogeneous mass gap were studied. It was shown that in the case of terrace-stepped structure of the substrate inhomogeneity in which the chiral mass has the opposite sign on different terraces, both massless and massive fermionic states are generated. The mass spectrum of such states depends on the size of the mass gap generated by the substrate, as well as the width of the terraces, the number of terraces in the substrate structure, and the width of the transition step.

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来源期刊

Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

0.00%

发文量

129

审稿时长

6-12 weeks

期刊介绍： Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.