Universal heat conduction in Ce1-xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap
Abstract
In the heavy-fermion superconductor Ce1-xYbxCoIn5, Yb doping was reported to cause a possible change from nodal d-wave superconductivity to a fully gapped d-wave molecular superfluid of composite pairs near x ≈ 0.07 (nominal value xnom = 0.2). Here we present systematic thermal conductivity measurements on Ce1-xYbxCoIn5 (x = 0.013, 0.084, and 0.163) single crystals. The observed finite residual linear term κ0/T is insensitive to Yb doping, verifying the universal heat conduction of the nodal d-wave superconducting gap in Ce1-xYbxCoIn5. Similar universal heat conduction is also observed in the CeCo(In1–yCdy)5 system. Furthermore, these results reveal a robust nodal d-wave gap in CeCoIn5 upon Yb or Cd doping.
- Authors:
-
- Fudan Univ., Shanghai (People's Republic of China)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of California, San Diego, La Jolla, CA (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1245396
- Alternate Identifier(s):
- OSTI ID: 1236536
- Report Number(s):
- BNL-111990-2016-JA
Journal ID: ISSN 2469-9950; PRBMDO; R&D Project: PM016; KC0201050
- Grant/Contract Number:
- SC00112704; FG02-04-ER46105; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Xu, Y., Petrovic, C., Dong, J. K., Lum, I. K., Zhang, J., Hong, X. C., He, L. P., Wang, K. F., Ma, Y. C., Maple, M. B., Shu, L., and Li, S. Y. Universal heat conduction in Ce1-xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.064502.
Xu, Y., Petrovic, C., Dong, J. K., Lum, I. K., Zhang, J., Hong, X. C., He, L. P., Wang, K. F., Ma, Y. C., Maple, M. B., Shu, L., & Li, S. Y. Universal heat conduction in Ce1-xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap. United States. https://doi.org/10.1103/PhysRevB.93.064502
Xu, Y., Petrovic, C., Dong, J. K., Lum, I. K., Zhang, J., Hong, X. C., He, L. P., Wang, K. F., Ma, Y. C., Maple, M. B., Shu, L., and Li, S. Y. Mon .
"Universal heat conduction in Ce1-xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap". United States. https://doi.org/10.1103/PhysRevB.93.064502. https://www.osti.gov/servlets/purl/1245396.
@article{osti_1245396,
title = {Universal heat conduction in Ce1-xYbxCoIn5: Evidence for robust nodal d-wave superconducting gap},
author = {Xu, Y. and Petrovic, C. and Dong, J. K. and Lum, I. K. and Zhang, J. and Hong, X. C. and He, L. P. and Wang, K. F. and Ma, Y. C. and Maple, M. B. and Shu, L. and Li, S. Y.},
abstractNote = {In the heavy-fermion superconductor Ce1-xYbxCoIn5, Yb doping was reported to cause a possible change from nodal d-wave superconductivity to a fully gapped d-wave molecular superfluid of composite pairs near x ≈ 0.07 (nominal value xnom = 0.2). Here we present systematic thermal conductivity measurements on Ce1-xYbxCoIn5 (x = 0.013, 0.084, and 0.163) single crystals. The observed finite residual linear term κ0/T is insensitive to Yb doping, verifying the universal heat conduction of the nodal d-wave superconducting gap in Ce1-xYbxCoIn5. Similar universal heat conduction is also observed in the CeCo(In1–yCdy)5 system. Furthermore, these results reveal a robust nodal d-wave gap in CeCoIn5 upon Yb or Cd doping.},
doi = {10.1103/PhysRevB.93.064502},
journal = {Physical Review B},
number = 6,
volume = 93,
place = {United States},
year = {Mon Feb 01 00:00:00 EST 2016},
month = {Mon Feb 01 00:00:00 EST 2016}
}
Web of Science
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