Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi2B 2C

Tuson Park; Elbert E.M. Chia; M. B. Salamon; E. D. Bauer; I. Vekhter; J. D. Thompson; Eun Mi Choi; Heon Jung Kim; Sung Ik Lee; P. C. Canfield

doi:10.1103/PhysRevLett.92.237002

Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi₂B ₂C

Tuson Park
, Elbert E.M. Chia
, M. B. Salamon
, E. D. Bauer
, I. Vekhter
, J. D. Thompson
, Eun Mi Choi
, Heon Jung Kim
, Sung Ik Lee
, P. C. Canfield

Los Alamos National Laboratory
University of Illinois at Urbana-Champaign
Louisiana State University
Pohang University of Science and Technology
Ames Laboratory

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The nonmagnetic superconductor LuNi₂B₂C via the dependence of heat capacity on a magnetic field angle and a magnetic field was studied. The heat capacity exhibits a fourfold variation as the field H<H_c2 was rotated in the [001] plane with minimum (100). It was found that a disorderd sample A shows a deviation from H^1/2 and a (4+4)- fold pattern in heat capacity. The anomaloous pattern in terms of coexixting superconducting gap anisotropy and nonlocal effects was also discussed.

Original language	English
Article number	237002
Pages (from-to)	237002-1-237002-4
Journal	Physical Review Letters
Volume	92
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.92.237002
State	Published - 11 Jun 2004
Externally published	Yes

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10.1103/PhysRevLett.92.237002

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Park, T., Chia, E. E. M., Salamon, M. B., Bauer, E. D., Vekhter, I., Thompson, J. D., Choi, E. M., Kim, H. J., Lee, S. I., & Canfield, P. C. (2004). Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi₂B ₂C. Physical Review Letters, 92(23), 237002-1-237002-4. Article 237002. https://doi.org/10.1103/PhysRevLett.92.237002

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title = "Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi2B 2C",

abstract = "The nonmagnetic superconductor LuNi2B2C via the dependence of heat capacity on a magnetic field angle and a magnetic field was studied. The heat capacity exhibits a fourfold variation as the field Hc2 was rotated in the [001] plane with minimum (100). It was found that a disorderd sample A shows a deviation from H1/2 and a (4+4)- fold pattern in heat capacity. The anomaloous pattern in terms of coexixting superconducting gap anisotropy and nonlocal effects was also discussed.",

author = "Tuson Park and Chia, \{Elbert E.M.\} and Salamon, \{M. B.\} and Bauer, \{E. D.\} and I. Vekhter and Thompson, \{J. D.\} and Choi, \{Eun Mi\} and Kim, \{Heon Jung\} and Lee, \{Sung Ik\} and Canfield, \{P. C.\}",

year = "2004",

month = jun,

day = "11",

doi = "10.1103/PhysRevLett.92.237002",

language = "English",

volume = "92",

pages = "237002--1--237002--4",

journal = "Physical Review Letters",

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Park, T, Chia, EEM, Salamon, MB, Bauer, ED, Vekhter, I, Thompson, JD, Choi, EM, Kim, HJ, Lee, SI & Canfield, PC 2004, 'Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi₂B ₂C', Physical Review Letters, vol. 92, no. 23, 237002, pp. 237002-1-237002-4. https://doi.org/10.1103/PhysRevLett.92.237002

TY - JOUR

T1 - Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi2B 2C

AU - Park, Tuson

AU - Chia, Elbert E.M.

AU - Salamon, M. B.

AU - Bauer, E. D.

AU - Vekhter, I.

AU - Thompson, J. D.

AU - Choi, Eun Mi

AU - Kim, Heon Jung

AU - Lee, Sung Ik

AU - Canfield, P. C.

PY - 2004/6/11

Y1 - 2004/6/11

N2 - The nonmagnetic superconductor LuNi2B2C via the dependence of heat capacity on a magnetic field angle and a magnetic field was studied. The heat capacity exhibits a fourfold variation as the field Hc2 was rotated in the [001] plane with minimum (100). It was found that a disorderd sample A shows a deviation from H1/2 and a (4+4)- fold pattern in heat capacity. The anomaloous pattern in terms of coexixting superconducting gap anisotropy and nonlocal effects was also discussed.

AB - The nonmagnetic superconductor LuNi2B2C via the dependence of heat capacity on a magnetic field angle and a magnetic field was studied. The heat capacity exhibits a fourfold variation as the field Hc2 was rotated in the [001] plane with minimum (100). It was found that a disorderd sample A shows a deviation from H1/2 and a (4+4)- fold pattern in heat capacity. The anomaloous pattern in terms of coexixting superconducting gap anisotropy and nonlocal effects was also discussed.

UR - https://www.scopus.com/pages/publications/3242724339

U2 - 10.1103/PhysRevLett.92.237002

DO - 10.1103/PhysRevLett.92.237002

M3 - Article

AN - SCOPUS:3242724339

SN - 0031-9007

VL - 92

SP - 237002-1-237002-4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 237002

ER -

Evidence for the coexistence of an anisotropic superconducting gap and nonlocal effects in the nonmagnetic superconductor LuNi₂B ₂C

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