English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Anomalous thermoelectric effects and quantum oscillations in the kagome metal CsV3Sb5

Chen, D., He, B., Yao, M., Pan, Y., Lin, H., Schnelle, W., et al. (2022). Anomalous thermoelectric effects and quantum oscillations in the kagome metal CsV3Sb5. Physical Review B, 105(20): L201109, pp. 1-6. doi:10.1103/PhysRevB.105.L201109.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
Chen_Anomalous.pdf (Publisher version), 657KB
Name:
Chen_Anomalous.pdf
Description:
-
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
CC BY 4.0

Locators

show

Creators

show
hide
 Creators:
Chen, Dong1, Author           
He, Bin1, Author           
Yao, Mengyu1, Author           
Pan, Yu1, Author           
Lin, Haicheng1, Author           
Schnelle, Walter2, Author           
Sun, Yan1, Author           
Gooth, Johannes3, Author           
Taillefer, Louis4, Author
Felser, Claudia5, Author           
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
3Nanostructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_3018212              
4external, ou_persistent22              
5Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

Content

show
hide
Free keywords: -
 Abstract: The kagome metal compounds AV3Sb5 (A = K, Rb, and Cs) feature a wealth of phenomena including nontrivial band topology, charge density wave (CDW), and superconductivity. One intriguing property is the time-reversal symmetry breaking in the CDW state without local moments, which leads to anomalous transport responses. Here, we report the investigation of magnetothermoelectric effects on high-quality CsV3Sb5 single crystals. A large anomalous Nernst effect (ANE) is observed at temperatures below 30 K and can be enhanced by the high mobility. Multiple Fermi surfaces with small effective masses are revealed by quantum oscillations in the Nernst and Seebeck signals. Furthermore, we discover a magnetic breakdown effect across the two smallest Fermi surfaces, with a gap around 20 meV between them. We propose that the two Fermi surfaces are split from a Dirac band by the CDW gap. These results indicate the large ANE originates from the CDW modulated nontrivial band structure as well as the extrinsic contributions. A second phase transition below the CDW transition temperature is also suggested by the strange temperature dependence of the ANE.

Details

show
hide
Language(s):
 Dates: 2022
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 105 (20) Sequence Number: L201109 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008