Coexistence of superconductivity and antiferromagnetic order in SmRh4B4
| Autor: | H. B. MacKay, L.D. Woolf, H.C. Hamaker, M. B. Maple, Z. Fisk |
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| Rok vydání: | 1979 |
| Předmět: |
Superconductivity
Condensed matter physics Chemistry Rare earth General Chemistry Condensed Matter Physics Magnetic susceptibility Discontinuity (geotechnical engineering) Materials Chemistry Temperature curve Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Ternary operation Critical field |
| Zdroj: | Hamaker, HC; Woolf, LD; MacKay, HB; Fisk, Z; & Maple, MB. (1979). Coexistence of superconductivity and antiferromagnetic order in SmRh4B4. Solid State Communications, 32(4), 289-294. doi: 10.1016/0038-1098(79)90949-9. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/4ms4d2dh |
| ISSN: | 0038-1098 |
| DOI: | 10.1016/0038-1098(79)90949-9 |
| Popis: | The ternary rare earth compound SmRh4B4 has been studied by means of upper critical field, low temperature specific heat, and static magnetic susceptibility measurements. A lambda-type specific heat anomaly, a discontinuity in the slope of the upper critical field versus temperature curve, and a cusp-like feature in the magnetic susceptibility suggest that superconductivity and long-range antiferromagnetic order coexist in SmRh4B4 below 0.87 K. Machida's theory for antiferromagnetic superconductors provides a good description of the upper critical field data, while the magnetic susceptibility data can be represented as the sum of a Curie-Weiss term with microeff = 0.632 microB and θp = −1.93 K and a temperature independent Van Vleck contribution. |
| Databáze: | OpenAIRE |
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