Coexistence and Coupling of Superconductivity and Magnetism in Thin Film Structures

A. J. Drew, S. L. Lee, D. Charalambous, A. Potenza, C. Marrows, H. Luetkens, A. Suter, T. Prokscha, R. Khasanov, E. Morenzoni, D. Ucko, and E. M. Forgan

Phys. Rev. Lett. 95, 197201 – Published 1 November 2005

Abstract

Superconducting and magnetic order are usually mutually exclusive, and are found to coexist in relatively few materials. We have obtained direct evidence for a spin-density wave (SDW) coexisting with bulk superconductivity in a ferromagnetic-superconducting trilayer. In the superconducting state the amplitude of the SDW is enhanced and modeling the data also suggests a $π / 2$ phase shift of one component of the SDW, implying a profound coupling of these two forms of order.

Received 18 February 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.197201

Authors & Affiliations

A. J. Drew^1,*, S. L. Lee¹, D. Charalambous², A. Potenza³, C. Marrows³, H. Luetkens^4,†, A. Suter⁴, T. Prokscha⁴, R. Khasanov^4,‡, E. Morenzoni⁴, D. Ucko^5,§, and E. M. Forgan⁵

¹School of Physics and Astronomy, University of St. Andrews, St. Andrews, KY16 9SS, Scotland, United Kingdom
²Department of Physics, University of Lancaster, Lancaster, LA1 4YB, United Kingdom
³School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT, United Kingdom
⁴Labor für Myonspinspektroskopie, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
⁵School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, United Kingdom

^*Electronic address: alanjohn.drew@physics.org
^†Also at Institut für Metallphysik und Nukleare Festkörperphysik, Technische Universität Braunschweig, D-38106 Braunschweig, Germany.
^‡Also at Physik Institut, Universität Zürich, CH-8057 Zürich, Switzerland.
^§Current Address PR/PRL Editorial Offices, One Research Road, Box 9000, Ridge, NY 11961-9000.

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Vol. 95, Iss. 19 — 4 November 2005

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