Display options
Cite
Machida Y, Tomokuni K, Izawa K, et al. Verification of the Wiedemann-Franz law in YbRh2Si2 at a quantum critical point. Phys Rev Lett. 2013;110(23):236402doi: 10.1103/PhysRevLett.110.236402.
Machida, Y., Tomokuni, K., Izawa, K., Lapertot, G., Knebel, G., Brison, J. P., & Flouquet, J. (2013). Verification of the Wiedemann-Franz law in YbRh2Si2 at a quantum critical point. Physical review letters, 110(23), 236402. https://doi.org/10.1103/PhysRevLett.110.236402
Machida, Y, et al. "Verification of the Wiedemann-Franz law in YbRh2Si2 at a quantum critical point." Physical review letters vol. 110,23 (2013): 236402. doi: https://doi.org/10.1103/PhysRevLett.110.236402
Machida Y, Tomokuni K, Izawa K, Lapertot G, Knebel G, Brison JP, Flouquet J. Verification of the Wiedemann-Franz law in YbRh2Si2 at a quantum critical point. Phys Rev Lett. 2013 Jun 07;110(23):236402. doi: 10.1103/PhysRevLett.110.236402. Epub 2013 Jun 07. PMID: 25167518.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2013 Jun 07;110(23):236402. doi: 10.1103/PhysRevLett.110.236402. Epub 2013 Jun 07.

Verification of the Wiedemann-Franz law in YbRh2Si2 at a quantum critical point.

Physical review letters

Y Machida, K Tomokuni, K Izawa, G Lapertot, G Knebel, J-P Brison, J Flouquet

Affiliations

  1. Department of Physics, Tokyo Institute of Technology, Meguro 152-8551, Japan.
  2. SPSMS, UMR-E CEA/UJF-Grenoble 1, INAC, Grenoble, F-38054, France.

PMID: 25167518 DOI: 10.1103/PhysRevLett.110.236402

Abstract

The thermal conductivity measurements are performed on the heavy-fermion compound YbRh(2)Si(2) down to 0.04 K and under magnetic fields through a quantum critical point (QCP) at B(c)=0.66  T∥c axis. In the limit as T→0, we find that the Wiedemann-Franz law is satisfied within experimental error at the QCP despite the destruction of the standard signature of Fermi liquid. Our results place strong constraints on models that attempt to describe the nature of the unconventional quantum criticality of YbRh(2)Si(2).

Publication Types