Magnetism and superconductivity in U2PtxRh1-xC2

Wakeham, N.; Ni, Ni; Bauer, E. D.; Thompson, J. D.; Tegtmeier, E.; Ronning, F.

doi:10.1103/PhysRevB.91.024408

Title: Magnetism and superconductivity in $U_{2} {Pt}_{x} {Rh}_{1 - x} C_{2}$

Abstract

We report the phase diagram of the doping series U₂Pt_xRh_(1–x)C₂, studied through measurements of resistivity, specific heat, and magnetic susceptibility. The Néel temperature of U₂Rh₂C₂ of ~ 22 K is suppressed with increasing Pt content, reaching zero temperature close to x = 0.7, where we observed signatures of increased quantum fluctuations. Additionally, evidence is presented that the antiferromagnetic state undergoes a spin-reorientation transition upon application of an applied magnetic field. This transition shows non-monotonic behavior as a function of x, peaking at around x = 0.3. Superconductivity is observed for x ≥ 0.9, with T_c increasing with increasing x. The reduction in T_c and increase in residual resistivity with decreasing Pt content is inconsistent with the extension of the Abrikosov-Gor'kov theory to unconventional superconductivity.

Authors:

Wakeham, N. ^[1]; Ni, Ni ^[2]; Bauer, E. D. ^[1]; Thompson, J. D. ^[1]; Tegtmeier, E. ^[1]; Ronning, F. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of California, Los Angeles, CA (United States)

Publication Date:: Fri Jan 09 00:00:00 EST 2015

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

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1193289

Alternate Identifier(s):: OSTI ID: 1180033

Report Number(s):: LA-UR-14-27815
Journal ID: ISSN 1098-0121; PRBMDO

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

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

Additional Journal Information:: Journal Volume: 91; Journal Issue: 2; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Wakeham, N., Ni, Ni, Bauer, E. D., Thompson, J. D., Tegtmeier, E., and Ronning, F. Magnetism and superconductivity in U2PtxRh1-xC2.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.91.024408.

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                    Wakeham, N., Ni, Ni, Bauer, E. D., Thompson, J. D., Tegtmeier, E., & Ronning, F. Magnetism and superconductivity in U2PtxRh1-xC2.  United States.  https://doi.org/10.1103/PhysRevB.91.024408

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                    Wakeham, N., Ni, Ni, Bauer, E. D., Thompson, J. D., Tegtmeier, E., and Ronning, F. Fri .  
"Magnetism and superconductivity in U2PtxRh1-xC2".  United States.  https://doi.org/10.1103/PhysRevB.91.024408.  https://www.osti.gov/servlets/purl/1193289.

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@article{osti_1193289,

  title        = {Magnetism and superconductivity in U2PtxRh1-xC2},

  author       = {Wakeham, N. and Ni, Ni and Bauer, E. D. and Thompson, J. D. and Tegtmeier, E. and Ronning, F.},

  abstractNote = {We report the phase diagram of the doping series U₂PtxRh(1–x)C₂, studied through measurements of resistivity, specific heat, and magnetic susceptibility. The Néel temperature of U₂Rh₂C₂ of ~ 22 K is suppressed with increasing Pt content, reaching zero temperature close to x = 0.7, where we observed signatures of increased quantum fluctuations. Additionally, evidence is presented that the antiferromagnetic state undergoes a spin-reorientation transition upon application of an applied magnetic field. This transition shows non-monotonic behavior as a function of x, peaking at around x = 0.3. Superconductivity is observed for x ≥ 0.9, with Tc increasing with increasing x. The reduction in Tc and increase in residual resistivity with decreasing Pt content is inconsistent with the extension of the Abrikosov-Gor'kov theory to unconventional superconductivity.},

  doi          = {10.1103/PhysRevB.91.024408},

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

  number       = 2,

  volume       = 91,

  place        = {United States},

  year         = {Fri Jan 09 00:00:00 EST 2015},

  month        = {Fri Jan 09 00:00:00 EST 2015}

}

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Works referencing / citing this record:

Unconventional superconductivity
journal, April 2017

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Title: Magnetism and superconductivity in U 2 Pt x Rh 1 - x C 2

Abstract

Citation Formats

U Be 13 : An Unconventional Actinide Superconductor journal, May 1983

The superconducting phases of UPt 3 journal, March 2002

Coexistence of superconductivity and ferromagnetism in URhGe journal, October 2001

Magnetic Field-Induced Superconductivity in the Ferromagnet URhGe journal, August 2005

U 2 Pt C 2 and Systematics of Heavy Fermions journal, November 1984

Ferromagnetism and Superconductivity in Uranium Compounds journal, October 1969

μSR studies in the heavy fermion systems UNi2Al3, UPd2Al3 and U2PtC2 journal, December 1994

Magnetic properties of the uranium transition metal carbides U2TC2 (T = Ru, Os, Rh, Ir and Pt) journal, March 1996

The crystal structure of U2IrC2 journal, May 1971

Pressure induced loss of ferromagnetism in UPt journal, October 1975

Magnetism in UPt journal, November 1998

Single Crystal Growth and Structural and Magnetic Properties of the Uranium Ternary Intermetallic Compound UCr 2 Si 2 journal, January 2003

Heavy-fermion superconductivity atT c =2K in the antiferromagnet UPd2Al3 journal, February 1991

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Magnetic Ground State of a Heavy-Electron System: U 2 Zn 17 journal, April 1984

High-Field Galvanomagnetic Effects in Antiferromagnetic Chromium journal, December 1968

Mechanism of the Giant Magnetoresistance in UNiGa from First-Principles Calculations journal, December 1996

Magnetoresistance behaviour of UNiGa and UNiAl journal, March 1992

Transport properties and origin of ferromagnetism in (Ga,Mn)As journal, January 1998

Effect of Irradiation-Induced Disorder on the Conductivity and Critical Temperature of the Organic Superconductor κ − ( BEDT − TTF ) 2 Cu ( SCN ) 2 journal, May 2006

Superconductivity with Pairs in a Relative p Wave journal, August 1963

T c suppression and resistivity in cuprates with out of plane defects journal, August 2007

Enhancement of T c by disorder in underdoped iron pnictide superconductors journal, April 2012

Impurities in the heavy‐fermion superconductor UBe 1 3 (invited) journal, March 1984

Electronic Tuning and Uniform Superconductivity in CeCoIn 5 journal, October 2012

Effect of Spatial Variations of the Superconducting Gap on Suppression of the Transition Temperature by Impurities journal, June 1998

Critical temperature of an anisotropic superconductor containing both nonmagnetic and magnetic impurities journal, October 1998

Spin glass versus superconductivity journal, August 2002

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Title: Magnetism and superconductivity in $U_{2} {Pt}_{x} {Rh}_{1 - x} C_{2}$

U ${Be}_{13}$ : An Unconventional Actinide Superconductor
journal, May 1983

The superconducting phases of ${UPt}_{3}$
journal, March 2002

Coexistence of superconductivity and ferromagnetism in URhGe
journal, October 2001

Magnetic Field-Induced Superconductivity in the Ferromagnet URhGe
journal, August 2005

$U_{2}$ Pt $C_{2}$ and Systematics of Heavy Fermions
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Ferromagnetism and Superconductivity in Uranium Compounds
journal, October 1969

μSR studies in the heavy fermion systems UNi2Al3, UPd2Al3 and U2PtC2
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Magnetic properties of the uranium transition metal carbides U2TC2 (T = Ru, Os, Rh, Ir and Pt)
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The crystal structure of U2IrC2
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Pressure induced loss of ferromagnetism in UPt
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Single Crystal Growth and Structural and Magnetic Properties of the Uranium Ternary Intermetallic Compound UCr ₂ Si ₂
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Heavy-fermion superconductivity atT c =2K in the antiferromagnet UPd2Al3
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