Effects of Magnetic Frustrations on dγ-Symmetry Cooper Pairs in Simple Square Lattices
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概要
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The nearest-neighbor attractive interaction and the van Hove singularity definitelyprefer #7-symmetry Cooper pairs in simple square lattices with the nearest-neighbortransfer integrals. What are examined are the effects of tnagnetic frustrations onsuperconductivity realized by superexchange interactions in metallic phases as well asthose on magnetic orderings in insulating phases. Although magnetic transitiontemperatures are significantly reduced by frustrations as expected, superconductingtransition temperatures are ztot depressed, but are actually enhanced in certain casesby magnetic frustrations. A detailed analysis of magnetisna in insulating phases isnecessary to estimate transition temperatures of superconductivity realized bysuperexchange interactions.
- 社団法人日本物理学会の論文
- 1987-07-15
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