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Kagome lattice, which has been theoretically designed more than 70 years ago, is now attracting much attention as a playground to explore exotic quantum states derived from its unique geometry characterized by a two-dimensional network of corner-sharing triangles. In this thesis, we focus on AV3Sb5, the first kagome-lattice compound which is suitable for studying the physics associated with the saddle-point band. This chapter describes research background of AV3Sb5. Starting from basics of the kagome lattice and its intriguing electronic states, physical properties in AV3Sb5, such as superconductivity and charge density wave, are in-troduced.

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Introduction

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  • 发表日期：

    2025年

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  • Takemi Kato

摘要

Kagome lattice, which has been theoretically designed more than 70 years ago, is now attracting much attention as a playground to explore exotic quantum states derived from its unique geometry characterized by a two-dimensional network of corner-sharing triangles. In this thesis, we focus on AV3Sb5, the first kagome-lattice compound which is suitable for studying the physics associated with the saddle-point band. This chapter describes research background of AV3Sb5. Starting from basics of the kagome lattice and its intriguing electronic states, physical properties in AV3Sb5, such as superconductivity and charge density wave, are in-troduced.