Influence of superconductivity on magnetic exchange interactions

Using the formulation due to Fedro and Robinson of magnetic exchange in the presence of superconductivity, the mean field magnetic interaction energy has been calculated for rare earth (RE) ions in the RERh sub 4 B sub 4 lattice. It is shown that increasing the strength of the superconducting intera...

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Bibliographic Details
Published in:	Journal of low temperature physics Vol. 62; no. 5-6; pp. 375 - 383
Main Authors:	DUNLAP, B. D, FEDRO, A. J
Format:	Journal Article
Language:	English
Published:	Heidelberg Springer 01-03-1986
Subjects:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Physics Properties of type I and type II superconductors Superconductivity Antiferromagnetism Temperature Lanthanide Rhodium Borides Mixed Superconductivity Theoretical study Very low temperature Coexistence Magnetic transition RKKY interaction Coherence length Exchange interaction Magnetic impurities Ferromagnetism Molecular field approximation Superconducting transition
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Summary:	Using the formulation due to Fedro and Robinson of magnetic exchange in the presence of superconductivity, the mean field magnetic interaction energy has been calculated for rare earth (RE) ions in the RERh sub 4 B sub 4 lattice. It is shown that increasing the strength of the superconducting interaction relative to the magnetic interaction results in a decrease of ferromagnetic coupling, and in some cases may drive ferromagnetic systems into antiferromagnetism. 11 ref.--AA
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0022-2291 1573-7357
DOI:	10.1007/BF00683402