π phase in magnetic-layered superconductors

We show that in a system composed of alternating superconducting and magnetic layers the ground state may be the so-called {pi} phase,'' wherein the superconducting order parameter changes its sign as we go from one superconducting layer to another. This phase is similar to the Larkin-Ovch...

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Veröffentlicht in:Physical review. B, Condensed matter Condensed matter, 1991-05, Vol.43 (13A), p.10124-10131
Hauptverfasser: ANDREEV, A. V, BUZDIN, A. I, OSGOOD, R. M
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Sprache:eng
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Zusammenfassung:We show that in a system composed of alternating superconducting and magnetic layers the ground state may be the so-called {pi} phase,'' wherein the superconducting order parameter changes its sign as we go from one superconducting layer to another. This phase is similar to the Larkin-Ovchinnikov-Fulde-Ferrell phase. We find that the {pi} phase exists, under certain conditions, in the presence of both ferro- and antiferromagnetism.
ISSN:0163-1829
1098-0121
1095-3795
1550-235X
DOI:10.1103/PhysRevB.43.10124