期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 323, 期 11, 页码 1551-1562出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2011.01.018
关键词
Ion implantation; Strontium titanate; Defect-induced magnetism
资金
- Deutsche Forschungsgemeinschaft (DFG) [PO1275/2-1]
- Bundesministerium fur Bildung und Forschung (BMBF) [FKZ03N8708]
In this work it is shown that ion irradiation of high-quality SrTiO3 single crystals can lead to room-temperature ferromagnetism. Structural analysis revealed a polycrystalline SrTiO3 layer, Sr2Ti6O13, or Ruddlesden-Popper like secondary phase at the sample surface induced by the irradiation. The lack of any measurable ferromagnetic secondary phases suggests defects are the origin of the observed ferromagnetic signal. (C) 2011 Elsevier B.V. All rights reserved.
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