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Title: Non-volatile polarization switch of magnetic domain wall velocity

Controlled propagation speed of individual magnetic domains in metal channels at the room temperature is obtained via the non-volatile field effect associated with the switchable polarization of P(VDF-TrFE) (polyvinylidene fluoride-trifluoroethylene) ferroelectric polymer. Polarization domains directly written using conducting atomic force microscope probe locally accelerate/decelerate the magnetic domains in the 0.6 nm thick Co film. The change of the magnetic domain wall velocity is consistent with the magnetic anisotropy energy modulation through the polarization upward/downward orientation. Excellent retention is observed. The demonstrated local non-destructive and reversible change of magnetic properties via rewritable patterning of ferroelectric domains could be attractive for exploring the ultimate limit of miniaturization in devices based on ferromagnetic/ferroelectric bilayers.
Authors:
; ;  [1] ; ; ; ;  [2] ;  [3] ; ;  [4]
  1. Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015 (Switzerland)
  2. University of Grenoble Alpes, Institut Néel, F-38042 Grenoble (France)
  3. (France)
  4. SPINTEC, UMR-8191, CEA/CNRS/UJF/GINP, INAC, F-38054 Grenoble (France)
Publication Date:
OSTI Identifier:
22486278
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 25; Other Information: (c) 2015 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; ANISOTROPY; ATOMIC FORCE MICROSCOPY; FERROELECTRIC MATERIALS; LAYERS; MAGNETIC PROPERTIES; METALS; MINIATURIZATION; POLARIZATION; POLYVINYLS; SWITCHES; TEMPERATURE RANGE 0273-0400 K; VELOCITY; VOLATILITY