Pressure studies of the quantum critical alloy Ce0.93Yb0.07CoIn5

Singh, Y. P.; Haney, D. J.; Huang, X. Y.; White, B. D.; Maple, M. B.; Dzero, M.; Almasan, C. C.

doi:10.1103/PhysRevB.91.174506

Title: Pressure studies of the quantum critical alloy ${Ce}_{0.93} {Yb}_{0.07} {CoIn}_{5}$

Abstract

Here we present our experimental and theoretical study of the effects of pressure on the transport properties of the heavy-fermion alloy Ce_1-xYbxCoIn₅ with actual concentration x $$\approx$$ 0.07. We specifically choose this value of ytterbium concentration because the magnetic-field-induced quantum critical point, which separates the antiferromagnetic and paramagnetic states at zero temperature, approaches zero, as has been established in previous studies. Our measurements show that pressure further suppresses quantum fluctuations in this alloy, just as it does in the parent compound CeCoIn₅. In contrast, the square-root temperature dependent part of resistivity remains insensitive to pressure, indicating that the heavy-quasiparticles are not involved in the inelastic scattering processes leading to such a temperature dependent resistivity. We demonstrate that the growth of the coherence temperature with pressure, as well as the decrease of the residual resistivity, can be accurately described by employing the coherent potential approximation for a disordered Kondo lattice.

Authors:

Singh, Y. P. ^[1]; Haney, D. J. ^[1]; Huang, X. Y. ^[1]; White, B. D. ^[2]; Maple, M. B. ^[2]; Dzero, M. ^[1]; Almasan, C. C. ^[1]

Kent State Univ., Kent, OH (United States)
Univ. of California, San Diego, CA (United States)

Publication Date:: Mon May 11 00:00:00 EDT 2015

Research Org.:: Univ. of California, San Diego, CA (United States)

Sponsoring Org.:: National Science Foundation (NSF); USDOE

OSTI Identifier:: 1418610

Alternate Identifier(s):: OSTI ID: 1179295

Grant/Contract Number:: FG02-04ER46105

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Volume: 91; Journal Issue: 17; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Singh, Y. P., Haney, D. J., Huang, X. Y., White, B. D., Maple, M. B., Dzero, M., and Almasan, C. C. Pressure studies of the quantum critical alloy Ce0.93Yb0.07CoIn5.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.91.174506.

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                    Singh, Y. P., Haney, D. J., Huang, X. Y., White, B. D., Maple, M. B., Dzero, M., & Almasan, C. C. Pressure studies of the quantum critical alloy Ce0.93Yb0.07CoIn5.  United States.  https://doi.org/10.1103/PhysRevB.91.174506

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                    Singh, Y. P., Haney, D. J., Huang, X. Y., White, B. D., Maple, M. B., Dzero, M., and Almasan, C. C. Mon .  
"Pressure studies of the quantum critical alloy Ce0.93Yb0.07CoIn5".  United States.  https://doi.org/10.1103/PhysRevB.91.174506.  https://www.osti.gov/servlets/purl/1418610.

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@article{osti_1418610,

  title        = {Pressure studies of the quantum critical alloy Ce0.93Yb0.07CoIn5},

  author       = {Singh, Y. P. and Haney, D. J. and Huang, X. Y. and White, B. D. and Maple, M. B. and Dzero, M. and Almasan, C. C.},

  abstractNote = {Here we present our experimental and theoretical study of the effects of pressure on the transport properties of the heavy-fermion alloy Ce1-xYbxCoIn5 with actual concentration x $\approx$ 0.07. We specifically choose this value of ytterbium concentration because the magnetic-field-induced quantum critical point, which separates the antiferromagnetic and paramagnetic states at zero temperature, approaches zero, as has been established in previous studies. Our measurements show that pressure further suppresses quantum fluctuations in this alloy, just as it does in the parent compound CeCoIn5. In contrast, the square-root temperature dependent part of resistivity remains insensitive to pressure, indicating that the heavy-quasiparticles are not involved in the inelastic scattering processes leading to such a temperature dependent resistivity. We demonstrate that the growth of the coherence temperature with pressure, as well as the decrease of the residual resistivity, can be accurately described by employing the coherent potential approximation for a disordered Kondo lattice.},

  doi          = {10.1103/PhysRevB.91.174506},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 17,

  volume       = 91,

  place        = {United States},

  year         = {Mon May 11 00:00:00 EDT 2015},

  month        = {Mon May 11 00:00:00 EDT 2015}

}

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Title: Pressure studies of the quantum critical alloy Ce 0.93 Yb 0.07 CoIn 5

Abstract

Citation Formats

Heavy-fermion superconductivity in CeCoIn 5 at 2.3 K journal, April 2001

Superconductivity in Cerium- and Plutonium-Based `115' Materials journal, May 2007

Colloquium: Topological insulators journal, November 2010

Low-temperature surface conduction in the Kondo insulator SmB 6 journal, November 2013

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Hybridization, Inter-Ion Correlation, and Surface States in the Kondo Insulator SmB 6 journal, February 2013

Topological surface state in the Kondo insulator samarium hexaboride journal, March 2014

Correlated Electron State in Ce 1 − x Yb x CoIn 5 Stabilized by Cooperative Valence Fluctuations journal, April 2011

Incoherent non-Fermi-liquid scattering in a Kondo lattice journal, September 2007

Non-Fermi liquid regimes with and without quantum criticality in Ce1-xYbxCoIn5 journal, April 2013

From local moment to mixed-valence regime in Ce 1 − x Yb x CoIn 5 alloys journal, March 2014

Heavy Fermion State and Superconductivity in Ce x La 1- x Cu 2 Si 2 journal, April 1987

Fermi-surface evolution in Yb-substituted CeCoIn 5 journal, June 2012

Nodal to Nodeless Superconducting Energy-Gap Structure Change Concomitant with Fermi-Surface Reconstruction in the Heavy-Fermion Compound CeCoIn 5 journal, January 2015

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Yb valence change in Ce 1 − x Yb x CoIn 5 from spectroscopy and bulk properties journal, October 2013

Insensitivity of the pressure dependences of characteristic energy scales in Ce 1 − x R x CoIn 5 ( R = Yb, Y, Gd ) to the electronic configuration of the rare-earth ion journal, September 2012

Theory for effects of pressure on heavy-fermion alloys journal, January 2002

Resolution of the discrepancy between the variation of the physical properties of Ce 1- x Yb x CoIn 5 single crystals and thin films with Yb composition journal, November 2014

Band-dependent emergence of heavy quasiparticles in CeCoIn 5 journal, July 2013

Relativistic Band-Structure Calculations for CeTIn 5 (T = Ir and Co) and Analysis of the Energy Bands by Using Tight-Binding Method journal, April 2003

Quasi-two-dimensional Fermi surfaces and the de Haas-van Alphen oscillation in both the normal and superconducting mixed states of CeCoIn 5 journal, June 2001

Gapless Fermi surfaces in superconducting Ce Co In 5 journal, July 2007

Unpaired Electrons in the Heavy-Fermion Superconductor CeCoIn 5 journal, August 2005

Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn 5 journal, April 2008

Andreev reflection and order parameter symmetry in heavy-fermion superconductors: the case of CeCoIn 5 journal, February 2009

Topological insulators and superconductors journal, October 2011

Pressure induced heavy fermion superconductivity of CeCu2Ge2 journal, March 1992

Magnetic and superconducting phases of CePd2Si2 journal, June 1996

Strong Magnetic Fluctuations in a Superconducting State of CeCoIn 5 journal, January 2012

Field Dependent Coherence Length in the Superclean, High- κ Superconductor CeCoIn 5 journal, September 2006

Molecular Pairing and Fully Gapped Superconductivity in Yb-doped CeCoIn 5 journal, January 2015

Magnetoresistance and growth of the coherent state in CeCu 6 journal, May 1987

Magnetoresistance in heavy-fermion alloys journal, February 1988

Residual resistivity in cerium heavy fermion compounds journal, December 1988

Magnetoresistance of Ce-based Kondo lattices: CeCu 2 Si 2 and CeAl 3 journal, January 1987

Kondo coherence in UBe 13 : Magnetoresistance at high pressure journal, November 1989

Magnetoresistance of Kondo lattices journal, May 1990

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Anomalous properties of the Yb x Y 1 − x InCu 4 alloy system journal, August 2003

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Title: Pressure studies of the quantum critical alloy ${Ce}_{0.93} {Yb}_{0.07} {CoIn}_{5}$

Heavy-fermion superconductivity in CeCoIn ₅ at 2.3 K
journal, April 2001

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journal, May 2007

Colloquium: Topological insulators
journal, November 2010

Low-temperature surface conduction in the Kondo insulator SmB $_{6}$
journal, November 2013

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journal, November 2013

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journal, February 2013

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journal, March 2014

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journal, April 2011

Incoherent non-Fermi-liquid scattering in a Kondo lattice
journal, September 2007

Non-Fermi liquid regimes with and without quantum criticality in Ce1-xYbxCoIn5
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journal, March 2014

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journal, April 1987

Fermi-surface evolution in Yb-substituted CeCoIn $_{5}$
journal, June 2012

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journal, January 2015

Mixed-valence compounds
journal, April 1976

Heavy-fermion systems
journal, October 1984

Electronic structure and $f$ -orbital occupancy in Yb-substituted CeCoIn $_{5}$
journal, June 2011

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journal, October 2013

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journal, September 2012

Theory for effects of pressure on heavy-fermion alloys
journal, January 2002

Resolution of the discrepancy between the variation of the physical properties of Ce _{1- x} Yb _x CoIn ₅ single crystals and thin films with Yb composition
journal, November 2014

Band-dependent emergence of heavy quasiparticles in CeCoIn $_{5}$
journal, July 2013

Relativistic Band-Structure Calculations for CeTIn ₅ (T = Ir and Co) and Analysis of the Energy Bands by Using Tight-Binding Method
journal, April 2003

Quasi-two-dimensional Fermi surfaces and the de Haas-van Alphen oscillation in both the normal and superconducting mixed states of CeCoIn ₅
journal, June 2001

Gapless Fermi surfaces in superconducting $Ce Co {In}_{5}$
journal, July 2007

Unpaired Electrons in the Heavy-Fermion Superconductor ${CeCoIn}_{5}$
journal, August 2005

Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in ${CeCoIn}_{5}$
journal, April 2008

Andreev reflection and order parameter symmetry in heavy-fermion superconductors: the case of CeCoIn ₅
journal, February 2009

Topological insulators and superconductors
journal, October 2011

Pressure induced heavy fermion superconductivity of CeCu2Ge2
journal, March 1992

Magnetic and superconducting phases of CePd2Si2
journal, June 1996

Strong Magnetic Fluctuations in a Superconducting State of ${CeCoIn}_{5}$
journal, January 2012

Field Dependent Coherence Length in the Superclean, High- $κ$ Superconductor ${CeCoIn}_{5}$
journal, September 2006

Molecular Pairing and Fully Gapped Superconductivity in Yb-doped ${CeCoIn}_{5}$
journal, January 2015

Magnetoresistance and growth of the coherent state in CeCu ₆
journal, May 1987

Magnetoresistance in heavy-fermion alloys
journal, February 1988

Residual resistivity in cerium heavy fermion compounds
journal, December 1988

Magnetoresistance of Ce-based Kondo lattices: CeCu 2 Si 2 and CeAl 3
journal, January 1987

Kondo coherence in ${UBe}_{13}$ : Magnetoresistance at high pressure
journal, November 1989

Magnetoresistance of Kondo lattices
journal, May 1990

The Kondo lattice and weak antiferromagnetism
journal, July 1977

Anomalous properties of the ${Yb}_{x} Y_{1 - x} {InCu}_{4}$ alloy system
journal, August 2003

Single-Site Approximations in the Electronic Theory of Simple Binary Alloys
journal, November 1968

Theory of Electrical Conductivity in Disordered Binary Alloys. The Effect of $s - d$ Hybridization
journal, January 1972

On the pseudogap formation in heavy-fermion alloys
journal, September 1988

Self-consistent theory of heavy-fermion alloys
journal, June 1991

Many-Particle Physics
book, January 2000