CsV3Sb5: A Z2 Topological Kagome Metal with a Superconducting Ground State
Brenden R. Ortiz, Samuel M. L. Teicher, Yong Hu, Julia L. Zuo, Paul M. Sarte, Emily C. Schueller, A. M. Milinda Abeykoon, Matthew J. Krogstad, Stephan Rosenkranz, Raymond Osborn, Ram Seshadri, Leon Balents, Junfeng He, Stephen D. Wilson
DOI 10.1103/PhysRevLett.125.247002 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Recently discovered alongside its sister compounds KV3Sb5 and RbV3Sb5, CsV3Sb5 crystallizes with an ideal kagome network of vanadium and antimonene layers separated by alkali metal ions. This work presents the electronic properties of CsV3Sb5, demonstrating bulk superconductivity in single crystals with a Tc=2.5 K. The normal state electronic structure is studied via angle-resolved photoemission spectroscopy and density-functional theory, which categorize CsV3Sb5 as a Z2 topological metal. Multiple protected Dirac crossings are predicted in close proximity to the Fermi level (EF), and signatures of normal state correlation effects are also suggested by a high-temperature charge density wavelike instability. The implications for the formation of unconventional superconductivity in this material are discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CsV3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.5 | Pressure unresolved | onset |
| CsV3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.5 | Pressure unresolved | onset |
| CsV3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.5 | Pressure unresolved | onset |
Similar papers
Superconductivity in the Z2 kagome metal KV3Sb5
similarity 0.97Brenden R. Ortiz et al.
Source status unknown — claims are unverified
Unconventional superconductivity via charge fluctuations in the kagome metal CsV3Sb5
similarity 0.97Yuan Tian & Sergey Y. Savrasov
Source status unknown — claims are unverified
Large kagome family candidates with topological superconductivity and charge density waves
similarity 0.97Xin-Wei Yi et al.
Source status unknown — claims are unverified
Strain-sensitive superconductivity in the kagome metals KV3Sb5 and CsV3Sb5 probed by point-contact spectroscopy
similarity 0.97Lichang Yin et al.
Source status unknown — claims are unverified
Pressure-induced reemergence of superconductivity in the topological kagome metal CsV3Sb5
similarity 0.97Zhuyi Zhang (张朱一) et al.
Source status unknown — claims are unverified
Quantum Transport Evidence of Topological Band Structures of Kagome Superconductor CsV3Sb5
similarity 0.97Yang Fu (付阳) et al.
Source status unknown — claims are unverified