Magnetism and superconductivity in single-crystal ErNi{sub 2}B{sub 2}C
Journal Article
·
· Physical Review, B: Condensed Matter
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
- Department of Physics, University of California, Riverside, California 92521 (United States)
The superconducting upper critical magnetic fields {ital H}{sub {ital c}2}({ital T}) for {bold H}{parallel}{bold c} and {bold H}{perpendicular}{bold c}, determined from {ital M}({ital T}) and {rho}{sub {ital a}{ital b}}({ital H},{ital T}) data, show anomalies for both field orientations near {ital T}{sub {ital N}}. However, the local minimum of {ital H}{sub {ital c}2}({ital T}) near {ital T}{sub {ital N}}, seen previously for both {bold H}{perpendicular}{bold c} and {bold H}{parallel}{bold c} in a HoNi{sub 2}B{sub 2}C crystal, was found only for {bold H}{parallel}{bold c} in ErNi{sub 2}B{sub 2}C. This anisotropy in {ital H}{sub {ital c}2}({ital T}) is likely a result of the anisotropy of the Er sublattice magnetization, specifically the anisotropy of {ital T}{sub {ital N}}({ital H}). The depth of the local minimum in {ital H}{sub {ital c}2} for {bold H}{parallel}{bold c} for ErNi{sub 2}B{sub 2}C near {ital T}{sub {ital N}} is comparable to the one for HoNi{sub 2}B{sub 2}C at 5 K.
- Research Organization:
- Ames National Laboratory
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 83942
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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