Publication: Coupling of superconductors through a half-metallic ferromagnet : evidence for a long-range proximity effect
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2004-06-08
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Peña, V.
Sefrioui, Zouhair
Arias Serna, Diego
Varela del Arco, María
Pennycook, S. J.
Martínez, J. L.
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American Physical Society
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Abstract
Here we examine the ferromagnetic/superconducting proximity effect in half-metallic ferromagnetic La_(0.7)Ca_(0.3)MnO_(3) and high-T_(c) superconducting YBa_(2)Cu_(3)O_(7) artificial structures. We have found experimental evidence for the coupling between superconducting layers through ferromagnetic spacers in superlattices. This is consistent with a long-range proximity effect in half-metal ferromagnet/d-wave superconductor structures.
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© 2004 The American Physical Society. This work was supported by MCYT MAT 2002-2642 and CAM 07N/0032/2002 and Fundación Ramón Areces.
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