期刊
PHYSICAL REVIEW B
卷 106, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.064510
关键词
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资金
- European Research Council (ERC) [715730]
- Swiss National Science Foundation [PP00P2_176789]
- Spanish Ministerio de Ciencia e Innovacion [PID2019-109905GB-C21]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [GA 3314/1-1-FOR 5249]
- Basque Government [IT979-16]
- European Research Council [742068TOPMAT]
- Deutsche Forschungsgemeinschaft [258499086 SFB 1143]
- DFG through the Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter ct.qmat (EXC 2147) [39085490]
- Programa Red Guipuzcoana de Ciencia Tecnologia e Innovacion 2021 [2021-CIEN-000070-01]
- Swiss National Science Foundation (SNF) [PP00P2_176789] Funding Source: Swiss National Science Foundation (SNF)
The cascade of electronic phases in CsV3Sb5 provides an opportunity to study the mutual interactions in a clean, strongly interacting kagome lattice. CsV3Sb5 is a three-dimensional metal in the charge density wave state and exhibits anomalous magnetoresistance at low temperatures.
The cascade of electronic phases in CsV3Sb5 raises the prospect to disentangle their mutual interactions in a clean, strongly interacting kagome lattice. When the kagome planes are stacked into a crystal, its electronic dimensionality encodes how much of the kagome physics and its topological aspects survive. The layered structure of CsV3Sb5 reflects in Brillouin-zone-sized quasi-two-dimensional Fermi surfaces and significant transport anisotropy. Yet here we demonstrate that CsV3Sb5 is a three-dimensional (3D) metal within the charge density wave (CDW) state. Small 3D pockets play a crucial role in its low-temperature magneto-and quantum transport. Their emergence at T-CDW asymptotic to 93 K results in an anomalous sudden increase of the in-plane magnetoresistance by four orders of magnitude. The presence of these 3D pockets is further confirmed by quantum oscillations under in-plane magnetic fields, demonstrating their closed nature. These results emphasize the impact of interlayer coupling on the kagome physics in 3D materials.
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