Superconductivity and magnetism in quaternary borocarbides
- Tata Institute of Fundamental Research, Bombay (India)
Quaternary borocarbide superconductors have attracted attention and are of current interest due to a variety of reasons. Some of them exhibit high T{sub c}`s for intermetallics, including the material which shows highest known T{sub c}, for intermetallics. Though the structure of RNi{sub 2}B{sub 2}C (R = Sc, Y, rare earth, Th, U) is effectively a layered structure like that of high T{sub c} cuprates, rare earth ions influence the superconducting properties of these materials. Coexistence of superconductivity and magnetism has been found in these materials with magnetic ordering temperatures much higher than those of earlier known magnetic superconductors which implies stronger coupling of rare earth moment to conduction electrons. These features make quaternary borocarbides an altogether different class of materials. Being quaternary, and with the possibility of having more than one rare earth-carbon layer in the structure, this family offers the possibility of finding many new materials with wide ranging properties. Highlights of recent developments in this new subject of quaternary borocarbides are reviewed here.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 535097
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 107; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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