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Title: Study on the oxygen vacancy redistribution and the mechanism of electrical manipulation of ferromagnetism in diluted magnetic oxides

Electrical manipulation of room temperature ferromagnetism (RTFM) has been observed in several kinds of transition metal doped diluted magnetic oxide films. We demonstrate using X-ray photoelectron spectroscopy that the redistribution of the oxygen vacancies in a film under an electric field plays a crucial role in the enhancement of the RTFM. Based on a detailed analysis of the X-ray photoelectron spectroscopy data for the oxygen vacancy distribution in different resistive states, a unified mechanism has been proposed. This work points out a new direction for improving the magnetic properties of these materials by controlling oxygen vacancies in the interior of the films.
Authors:
 [1] ;  [2] ; ; ; ; ; ; ;  [1]
  1. Key Laboratory of Advanced Films of Hebei Province, College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050024 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22493053
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DOPED MATERIALS; ELECTRIC FIELDS; FERROMAGNETISM; FILMS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; OXIDES; TEMPERATURE RANGE 0273-0400 K; TRANSITION ELEMENTS; VACANCIES; X-RAY PHOTOELECTRON SPECTROSCOPY