Insensitivity of the pressure dependences of characteristic energy scales in Ce1–xRxCoIn₅ (R=Yb,Y,Gd) to the electronic configuration of the rare-earth ion
Abstract
Cooperative Ce and Yb valence fluctuations have recently been proposed as the mechanism responsible for stabilizing correlated electron phenomena in Ce₁₋xYbxCoIn₅ over an unexpectedly large range of concentrations. In order to better understand the origins and character of this stability, we have measured the effect of applied pressure on relevant energy scales such as the superconducting critical (Tc) and Kondo-lattice coherence (T*) temperatures of Ce₁₋xRxCoIn₅ with R=Yb, Y, and Gd. Electrical resistivity measurements were performed under applied pressure on samples doped with intermediate-valent Yb and stable-valent Gd and Y, and the responses of Tc and T* to increased pressure in these systems are compared. The character of Tc(P) and T*(P) in Ce₁₋xRxCoIn₅ depends only on their respective ambient-pressure values Tc(0) and T*(0), independent of the electronic configuration of R or concentration x. The consequences of this result are discussed within the context of possible cooperative valence fluctuations in Ce₁₋xYbxCoIn₅.
- Authors:
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1103289
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 86 Journal Issue: 10; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
Citation Formats
White, B. D., Hamlin, J. J., Huang, K., Shu, L., Lum, I. K., Baumbach, R. E., Janoschek, M., and Maple, M. B. Insensitivity of the pressure dependences of characteristic energy scales in Ce1–xRxCoIn₅ (R=Yb,Y,Gd) to the electronic configuration of the rare-earth ion. United States: N. p., 2012.
Web. doi:10.1103/PhysRevB.86.100502.
White, B. D., Hamlin, J. J., Huang, K., Shu, L., Lum, I. K., Baumbach, R. E., Janoschek, M., & Maple, M. B. Insensitivity of the pressure dependences of characteristic energy scales in Ce1–xRxCoIn₅ (R=Yb,Y,Gd) to the electronic configuration of the rare-earth ion. United States. https://doi.org/10.1103/PhysRevB.86.100502
White, B. D., Hamlin, J. J., Huang, K., Shu, L., Lum, I. K., Baumbach, R. E., Janoschek, M., and Maple, M. B. Tue .
"Insensitivity of the pressure dependences of characteristic energy scales in Ce1–xRxCoIn₅ (R=Yb,Y,Gd) to the electronic configuration of the rare-earth ion". United States. https://doi.org/10.1103/PhysRevB.86.100502.
@article{osti_1103289,
title = {Insensitivity of the pressure dependences of characteristic energy scales in Ce1–xRxCoIn₅ (R=Yb,Y,Gd) to the electronic configuration of the rare-earth ion},
author = {White, B. D. and Hamlin, J. J. and Huang, K. and Shu, L. and Lum, I. K. and Baumbach, R. E. and Janoschek, M. and Maple, M. B.},
abstractNote = {Cooperative Ce and Yb valence fluctuations have recently been proposed as the mechanism responsible for stabilizing correlated electron phenomena in Ce₁₋xYbxCoIn₅ over an unexpectedly large range of concentrations. In order to better understand the origins and character of this stability, we have measured the effect of applied pressure on relevant energy scales such as the superconducting critical (Tc) and Kondo-lattice coherence (T*) temperatures of Ce₁₋xRxCoIn₅ with R=Yb, Y, and Gd. Electrical resistivity measurements were performed under applied pressure on samples doped with intermediate-valent Yb and stable-valent Gd and Y, and the responses of Tc and T* to increased pressure in these systems are compared. The character of Tc(P) and T*(P) in Ce₁₋xRxCoIn₅ depends only on their respective ambient-pressure values Tc(0) and T*(0), independent of the electronic configuration of R or concentration x. The consequences of this result are discussed within the context of possible cooperative valence fluctuations in Ce₁₋xYbxCoIn₅.},
doi = {10.1103/PhysRevB.86.100502},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 10,
volume = 86,
place = {United States},
year = {Tue Sep 11 00:00:00 EDT 2012},
month = {Tue Sep 11 00:00:00 EDT 2012}
}
https://doi.org/10.1103/PhysRevB.86.100502
Web of Science
Works referenced in this record:
Singular or non-Fermi liquids
journal, May 2002
- Varma, C. M.; Nussinov, Z.; van Saarloos, Wim
- Physics Reports, Vol. 361, Issue 5-6
Wilson ratio in Yb-substituted CeCoIn 5
journal, November 2010
- Capan, C.; Seyfarth, G.; Hurt, D.
- EPL (Europhysics Letters), Vol. 92, Issue 4
Correlated Electron State in Stabilized by Cooperative Valence Fluctuations
journal, April 2011
- Shu, L.; Baumbach, R. E.; Janoschek, M.
- Physical Review Letters, Vol. 106, Issue 15
Strong Magnetic Fluctuations in a Superconducting State of
journal, January 2012
- Hu, T.; Xiao, H.; Sayles, T. A.
- Physical Review Letters, Vol. 108, Issue 5
Non-Fermi Liquid Regimes and Superconductivity in the Low Temperature Phase Diagrams of Strongly Correlated d- and f-Electron Materials
journal, August 2010
- Brian Maple, M.; Baumbach, Ryan E.; Butch, Nicholas P.
- Journal of Low Temperature Physics, Vol. 161, Issue 1-2
Incoherent non-Fermi-liquid scattering in a Kondo lattice
journal, September 2007
- Paglione, Johnpierre; Sayles, T. A.; Ho, P. -C.
- Nature Physics, Vol. 3, Issue 10
-wave and d -wave superconductivity in quasi-two-dimensional metals
journal, June 1999
- Monthoux, P.; Lonzarich, G. G.
- Physical Review B, Vol. 59, Issue 22
Crystal-field and Kondo-scale investigations of ( , Ir, and Rh): A combined x-ray absorption and inelastic neutron scattering study
journal, May 2010
- Willers, T.; Hu, Z.; Hollmann, N.
- Physical Review B, Vol. 81, Issue 19
Response of the heavy-fermion superconductor CeCoIn 5 to pressure: roles of dimensionality and proximity to a quantum-critical point
journal, October 2001
- Nicklas, M.; Borth, R.; Lengyel, E.
- Journal of Physics: Condensed Matter, Vol. 13, Issue 44
Electronic structure and -orbital occupancy in Yb-substituted CeCoIn
journal, June 2011
- Booth, C. H.; Durakiewicz, T.; Capan, C.
- Physical Review B, Vol. 83, Issue 23
Two Fluid Description of the Kondo Lattice
journal, January 2004
- Nakatsuji, Satoru; Pines, David; Fisk, Zachary
- Physical Review Letters, Vol. 92, Issue 1
Superconducting phases of -electron compounds
journal, November 2009
- Pfleiderer, Christian
- Reviews of Modern Physics, Vol. 81, Issue 4
Coexistence of superconductivity and antiferromagnetism in
journal, November 2001
- Zapf, V. S.; Freeman, E. J.; Bauer, E. D.
- Physical Review B, Vol. 65, Issue 1
Superconducting manometers for high pressure measurement at low temperature
journal, February 1969
- Smith, T. F.; Chu, C. W.; Maple, M. B.
- Cryogenics, Vol. 9, Issue 1
Correlated disorder in a Kondo lattice
journal, February 2012
- Dzero, Maxim; Huang, Xinyi
- Journal of Physics: Condensed Matter, Vol. 24, Issue 7
Heavy-fermion superconductivity in CeCoIn 5 at 2.3 K
journal, April 2001
- Petrovic, C.; Pagliuso, P. G.; Hundley, M. F.
- Journal of Physics: Condensed Matter, Vol. 13, Issue 17
Scaling the Kondo lattice
journal, July 2008
- Yang, Yi-feng; Fisk, Zachary; Lee, Han-Oh
- Nature, Vol. 454, Issue 7204
Magnetically mediated superconductivity in quasi-two and three dimensions
journal, January 2001
- Monthoux, P.; Lonzarich, G. G.
- Physical Review B, Vol. 63, Issue 5