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Title: Long-range triplet supercurrents induced by singlet supercurrents parallel to magnetic interfaces

Employing a spin-parameterized Keldysh-Usadel technique for the diffusive regime, we demonstrate that even in the low proximity limit, considerable long-ranged triplet supercurrents can be effectively generated by spin-singlet supercurrents flowing parallel to the interfaces of uniform double ferromagnet interlayers with noncollinear exchange fields independent of actual junction geometry. The triplet supercurrents are found to be most pronounced when the thicknesses of the ferromagnet strips are unequal. To experimentally verify this generic phenomenon, we propose an accessible and controllable structure that can fully isolate the long-range triplet effects.
Authors:
 [1] ;  [2]
  1. Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel (Switzerland)
  2. Michelson Lab, Physics Division, Naval Air Warfare Center, China Lake, California 93555 (United States)
Publication Date:
OSTI Identifier:
22392021
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FERROMAGNETIC MATERIALS; INTERFACES; LAYERS; SPIN; SUPERCONDUCTING JUNCTIONS; THICKNESS; TRIPLETS