Published January 1, 2015
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Formation of different magnetic phases and high Curie temperature ferromagnetism in Fe-57-implanted ZnO film
Creators
- 1. Gebze Inst Technol, Dept Phys, TR-41400 Kocaeli, Turkey
- 2. Fatih Univ, Dept Phys, TR-34500 Istanbul, Turkey
- 3. Zavoisky Phys Tech Inst, Kazan 420029, Russia
- 4. Kazan Fed Univ, Kazan 420028, Russia
Description
We investigated magnetic properties of ZnO thin film implanted with Fe-57 ions to the fluence of 1.00 x 10(17) ions/cm(2). Both vibrating sample magnetometry and magneto-optical Kerr effect measurements revealed strong room temperature ferromagnetism with similar hysteresis loops. Temperature dependent measurements showed a very high Curie temperature around 850 K. Conversion electron Mossbauer spectroscopy experiments proved the existence of paramagnetic Fe+3 and Fe+2 ions and also the presence of substitutional Fe atoms in the hexagonal ZnO crystal resulting in intrinsic ferromagnetic order. (C) 2014 Elsevier B.V. All rights reserved.
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