Half-integer flux quantization in a superconducting loop with a ferromagnetic pi-junction

DOI to cite this document:: 10.5283/epub.8087

Bauer, A. ; Bentner, J. ; Aprili, M. ; Della Rocca, L. ; Strunk, Christoph

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Date of publication of this fulltext: 05 Aug 2009 13:58

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Abstract

Superconducting loops containing a pi-junction are predicted to show a spontaneous magnetic moment in zero external magnetic field. In order to confirm this longstanding prediction experimentally, we performed magnetization measurements on individual mesoscopic superconducting niobium loops with a ferromagnetic (PdNi) pi-junction. The loops are prepared on top of the active area of a micro ...