Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations

Yang, Yifeng; Urbano, Ricardo; Nicholas, Curro; Pines, David

doi:10.1103/PhysRevLett.103.197004

Title: Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations

Abstract

We report Knight shift experiments on the superconducting heavy electron material CeCoIn{sub 5} that allow one to track with some precision the behavior of the heavy electron Kondo liquid in the superconducting state with results in agreement with BCS theory. An analysis of the {sup 115}In nuclear quadrupole resonance (NQR) spin-lattice relaxation rate T{sub 1}{sup -1} measurements under pressure reveals the presence of 2d magnetic quantum critical fluctuations in the heavy electron component that are a promising candidate for the pairing mechanism in this material. Our results are consistent with an antiferromagnetic quantum critical point (QCP) located at slightly negative pressure in CeCoIn{sub 5} and provide additional evidence for significant similarities between the heavy electron materials and the high T{sub c} cuprates.

Authors:

Yang, Yifeng ^[1]; Urbano, Ricardo ^[2]; Nicholas, Curro ^[3]; Pines, David ^[3]

Los Alamos National Laboratory
NHMFL, FL
UC DAVIS

Publication Date:: Thu Jan 01 00:00:00 EST 2009

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 970589

Report Number(s):: LA-UR-09-05977; LA-UR-09-5977
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US201002%%1300

DOE Contract Number:: AC52-06NA25396

Resource Type:: Journal Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters; Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ACCURACY; BCS THEORY; CUPRATES; ELECTRONS; FLUCTUATIONS; KNIGHT SHIFT; NUCLEAR QUADRUPOLE RESONANCE; SPIN-LATTICE RELAXATION; SUPERCONDUCTIVITY

Citation Formats


                    Yang, Yifeng, Urbano, Ricardo, Nicholas, Curro, and Pines, David. Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations.  United States: N. p., 2009. 
        Web.  doi:10.1103/PhysRevLett.103.197004.

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                    Yang, Yifeng, Urbano, Ricardo, Nicholas, Curro, & Pines, David. Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations.  United States.  https://doi.org/10.1103/PhysRevLett.103.197004

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                    Yang, Yifeng, Urbano, Ricardo, Nicholas, Curro, and Pines, David. 2009.  
        "Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations".  United States.  https://doi.org/10.1103/PhysRevLett.103.197004.  https://www.osti.gov/servlets/purl/970589.

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@article{osti_970589,

  title        = {Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations},

  author       = {Yang, Yifeng and Urbano, Ricardo and Nicholas, Curro and Pines, David},

  abstractNote = {We report Knight shift experiments on the superconducting heavy electron material CeCoIn{sub 5} that allow one to track with some precision the behavior of the heavy electron Kondo liquid in the superconducting state with results in agreement with BCS theory. An analysis of the {sup 115}In nuclear quadrupole resonance (NQR) spin-lattice relaxation rate T{sub 1}{sup -1} measurements under pressure reveals the presence of 2d magnetic quantum critical fluctuations in the heavy electron component that are a promising candidate for the pairing mechanism in this material. Our results are consistent with an antiferromagnetic quantum critical point (QCP) located at slightly negative pressure in CeCoIn{sub 5} and provide additional evidence for significant similarities between the heavy electron materials and the high T{sub c} cuprates.},

  doi          = {10.1103/PhysRevLett.103.197004},

  url          = {https://www.osti.gov/biblio/970589},
  journal      = {Physical Review Letters},

  issn         = {0031-9007},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jan 01 00:00:00 EST 2009},

  month        = {Thu Jan 01 00:00:00 EST 2009}

}

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Works referenced in this record:

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journal, January 2009

Curro, N. J.
Reports on Progress in Physics, Vol. 72, Issue 2
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Curro, N. J.; Young, B. -L.; Schmalian, J.
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Yang, Yi-feng; Pines, David
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Yang, Yi-feng; Fisk, Zachary; Lee, Han-Oh
Nature, Vol. 454, Issue 7204
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Fano effect in the point contact spectroscopy of heavy-electron materials
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Yang, Yi-feng
Physical Review B, Vol. 79, Issue 24
https://doi.org/10.1103/PhysRevB.79.241107

Paramagnetic Susceptibility in Superconductors
journal, May 1958

Yosida, Kei
Physical Review, Vol. 110, Issue 3
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115In NQR studies of CeRhIn5 and CeCoIn5 under high pressure
journal, February 2006

Kohori, Y.; Taira, H.; Fukazawa, H.
Journal of Alloys and Compounds, Vol. 408-412
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Universal behaviour and the two-component character of magnetically underdoped cuprate superconductors
journal, January 2009

Barzykin, Victor; Pines, David
Advances in Physics, Vol. 58, Issue 1
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Superconductivity and Quantum Criticality in $C e C o I n_{5}$
journal, September 2002

Sidorov, V. A.; Nicklas, M.; Pagliuso, P. G.
Physical Review Letters, Vol. 89, Issue 15
https://doi.org/10.1103/PhysRevLett.89.157004

Anomalous NMR magnetic shifts in ${CeCoIn}_{5}$
journal, October 2001

Curro, N. J.; Simovic, B.; Hammel, P. C.
Physical Review B, Vol. 64, Issue 18
https://doi.org/10.1103/PhysRevB.64.180514

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Similar Records

Title: Magnetic excitations in Kondo liquid: superconductivity and hidden magnetic quantum critical fluctuations

Abstract

Citation Formats

Nuclear magnetic resonance in the heavy fermion superconductors journal, January 2009

Two Fluid Description of the Kondo Lattice journal, January 2004

Scaling in the emergent behavior of heavy-electron materials journal, December 2004

Universal Behavior in Heavy-Electron Materials journal, March 2008

Scaling the Kondo lattice journal, July 2008

Fano effect in the point contact spectroscopy of heavy-electron materials journal, June 2009

Paramagnetic Susceptibility in Superconductors journal, May 1958

115In NQR studies of CeRhIn5 and CeCoIn5 under high pressure journal, February 2006

Universal behaviour and the two-component character of magnetically underdoped cuprate superconductors journal, January 2009

Superconductivity and Quantum Criticality in C e C o I n 5 journal, September 2002

Anomalous NMR magnetic shifts in CeCoIn 5 journal, October 2001

Nuclear magnetic resonance in the heavy fermion superconductors
journal, January 2009

Two Fluid Description of the Kondo Lattice
journal, January 2004

Scaling in the emergent behavior of heavy-electron materials
journal, December 2004

Universal Behavior in Heavy-Electron Materials
journal, March 2008

Scaling the Kondo lattice
journal, July 2008

Fano effect in the point contact spectroscopy of heavy-electron materials
journal, June 2009

Paramagnetic Susceptibility in Superconductors
journal, May 1958

115In NQR studies of CeRhIn5 and CeCoIn5 under high pressure
journal, February 2006

Universal behaviour and the two-component character of magnetically underdoped cuprate superconductors
journal, January 2009

Superconductivity and Quantum Criticality in $C e C o I n_{5}$
journal, September 2002

Anomalous NMR magnetic shifts in ${CeCoIn}_{5}$
journal, October 2001