English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Low-Temperature Thermal Conductivity of the Two-Phase Superconductor CeRh2As2

MPS-Authors
/persons/resource/persons224611

Onishi,  Seita
Physics of Unconventional Metals and Superconductors, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126697

Stockert,  Ulrike
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons200145

Khim,  Seunghyun
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons228423

Banda,  Jacintha
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126548

Brando,  Manuel
Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons186149

Hassinger,  Elena
Physics of Unconventional Metals and Superconductors, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Onishi, S., Stockert, U., Khim, S., Banda, J., Brando, M., & Hassinger, E. (2022). Low-Temperature Thermal Conductivity of the Two-Phase Superconductor CeRh2As2. Frontiers in Electronic Materials, 2, 1-8. doi:10.3389/femat.2022.880579.


Cite as: https://hdl.handle.net/21.11116/0000-000F-708D-4
Abstract
CeRh2As2 is a rare unconventional superconductor (Tc = 0.26 K) characterized by two adjacent superconducting phases for a magnetic field H‖c-axis of the tetragonal crystal structure. Antiferromagnetic order, quadrupole-density-wave order (T0 = 0.4 K) and the proximity of this material to a quantum-critical point have also been reported: The coexistence of these phenomena with superconductivity is currently under discussion. Here, we present thermal conductivity and electrical resistivity measurements on a single crystal of CeRh2As2 between 60 mK and 200 K and in magnetic fields (H‖c) up to 8 T. Extrapolation of our normal-state data to zero temperature validates the Wiedemann-Franz law within the error bars. The T dependence of the thermal conductivity κ(T) shows a pronounced drop below Tc which is also field dependent and thus interpreted as the signature of superconductivity. However, the large residual resistivity and the lack of sharp anomalies in κ(T) at the expected transition temperatures clearly indicate that samples of much higher purity are required to gain more information about the superconducting gap structure.