A thermodynamic probe of the topological phase transition in epitaxial graphene based Floquet topological insulator

Kumar Abhishek; Benjamin Colin

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A thermodynamic probe of the topological phase transition in epitaxial graphene based Floquet topological insulator

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摘要

One can use light to tune certain materials from a trivial to a topological phase. A prime example of such materials, classified as Floquet topological insulators (FTIs), is epitaxial graphene. In this paper, we probe the topological phase transition of a FTI via the efficiency and work output of quantum Otto and quantum Stirling heat engines. A maximum/minimum in the efficiency or work output invariably signals the phase transition point. Furthermore, both engines' work output and efficiency are markedly robust against the polarization direction of light.

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来源
《Journal of Applied Physics》 |2021年第20期|205105-1-205105-11|共11页
作者
Kumar Abhishek; Benjamin Colin;
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作者单位

Univ Massachusetts;

HBNI;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类应用物理学;
关键词
ENERGY BANDGAP; ORIGIN;

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A thermodynamic probe of the topological phase transition in epitaxial graphene based Floquet topological insulator

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