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Title: Giant temperature dependence of the spin reversal field in magnetoelectric chromia

Magnetic field-induced reversal of surface spin polarization for the magnetoelectric antiferromagnet chromia is studied via magnetometry in (0001)-textured thin films of various thicknesses. Reversal solely by magnetic means has been experimentally evidenced in sufficiently thin films. It sets the field-response of chromia films apart from bulk behavior, where switching between time-reversed single domain states requires the simultaneous presence of electric and magnetic fields. In our detailed experiments, we furthermore observe a giant sensitivity of the coercive field on temperature, thus, indicating the potential of magnetoelectric antiferromagnets as promising candidates for energy assisted magnetic recording media.
Authors:
;  [1] ;  [1] ;  [2]
  1. CIC Nanogune Consolider, Tolosa Hiribidea 76, 20018 Donostia-San Sebastian (Spain)
  2. (Spain)
Publication Date:
OSTI Identifier:
22275813
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRICAL PROPERTIES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; SPIN; TEMPERATURE DEPENDENCE; THIN FILMS