Effect of magnetism on superconductivity in rare-earth compounds RENi2B2C

Z. Zeng; Diana Guenzburger; D. E. Ellis; E. M. Baggio-Saitovitch

doi:10.1016/S0921-4534(96)00531-X

Effect of magnetism on superconductivity in rare-earth compounds RENi₂B₂C

Z. Zeng^*, Diana Guenzburger, D. E. Ellis, E. M. Baggio-Saitovitch

^*Corresponding author for this work

Physics and Astronomy

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

9 Scopus citations

Abstract

Spin-polarized first-principles density-functional electronic structure calculations were performed for 73-atoms embedded clusters representing antiferromagnetic RENi₂B₂C (RE = Pr, Nd, Sm, Gd, Ho, Tm). A substantial difference in the extent of the exchange polarization of the conduction electrons between early and late rare-earth compounds is revealed due to the reduced coupling between RE 4f and 5d electrons with increasing Z. This result is relevant to observed phenomena of coexistence of superconductivity and magnetism in these compounds.

Original language	English (US)
Pages (from-to)	23-31
Number of pages	9
Journal	Physica C: Superconductivity and its applications
Volume	271
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(96)00531-X
State	Published - Nov 1 1996

Keywords

Antiferromagnetic
Rare earth
Superconductors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(96)00531-X

Cite this

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title = "Effect of magnetism on superconductivity in rare-earth compounds RENi2B2C",

abstract = "Spin-polarized first-principles density-functional electronic structure calculations were performed for 73-atoms embedded clusters representing antiferromagnetic RENi2B2C (RE = Pr, Nd, Sm, Gd, Ho, Tm). A substantial difference in the extent of the exchange polarization of the conduction electrons between early and late rare-earth compounds is revealed due to the reduced coupling between RE 4f and 5d electrons with increasing Z. This result is relevant to observed phenomena of coexistence of superconductivity and magnetism in these compounds.",

keywords = "Antiferromagnetic, Rare earth, Superconductors",

author = "Z. Zeng and Diana Guenzburger and Ellis, {D. E.} and Baggio-Saitovitch, {E. M.}",

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T1 - Effect of magnetism on superconductivity in rare-earth compounds RENi2B2C

AU - Zeng, Z.

AU - Guenzburger, Diana

AU - Ellis, D. E.

AU - Baggio-Saitovitch, E. M.

PY - 1996/11/1

Y1 - 1996/11/1

N2 - Spin-polarized first-principles density-functional electronic structure calculations were performed for 73-atoms embedded clusters representing antiferromagnetic RENi2B2C (RE = Pr, Nd, Sm, Gd, Ho, Tm). A substantial difference in the extent of the exchange polarization of the conduction electrons between early and late rare-earth compounds is revealed due to the reduced coupling between RE 4f and 5d electrons with increasing Z. This result is relevant to observed phenomena of coexistence of superconductivity and magnetism in these compounds.

AB - Spin-polarized first-principles density-functional electronic structure calculations were performed for 73-atoms embedded clusters representing antiferromagnetic RENi2B2C (RE = Pr, Nd, Sm, Gd, Ho, Tm). A substantial difference in the extent of the exchange polarization of the conduction electrons between early and late rare-earth compounds is revealed due to the reduced coupling between RE 4f and 5d electrons with increasing Z. This result is relevant to observed phenomena of coexistence of superconductivity and magnetism in these compounds.

KW - Antiferromagnetic

KW - Rare earth

KW - Superconductors

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