Superconductivity in a magnetically ordered background

Details Superconductivity in a magnetically ordered background Superconductivity in a magnetically ordered background

1998-11-16

arxiv.org/abs/cond-mat/9811226v1

Physica C 317-318, 471 (1999).

Physics

Condensed Matter

Superconductivity

3 pages, 1 figure, proceedings to the conference "Anomalous Complex Superconductors", Crete 1998

Scientific paper

10.1016/S0921-4534(99)00101-X

Borocarbide compounds with the formula RNi2B2C show interesting superconducting and magnetic properties and the coexistence of the two phenomena. BCS theory is extended to systems with underlying commensurate magnetic order. In the case of helical phases the technique may be extended to any Q-vector and there exists a well defined limit for incommensurate values. The way magnetic order influences superconductivity depends crucially on the details of both the magnetic structure and the electron bands, but some qualitative criteria may be given. As an example we give a brief analysis of the compound HoNi2B2C.

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