Spin-wave resonance in Ge{sub 1-x}Mn{sub x} films exhibiting percolation ferromagnetism
- National Physical Laboratory (United Kingdom)
- Osaka-Ohtani University (Japan)
Magnetic properties of Ge{sub 1-x}Mn{sub x} (x = 0.02, 0.04, 0.08) thin films obtained by ion-implanting Mn{sup +} ions into single-crystal Ge plates are investigated. The contributions of the subsystem of dispersed Mn{sup 2+} ions, Ge{sup 3}Mn{sup 5} ferromagnetic clusters, and Mn-enriched ferromagnetic domains of Ge to the magnetic moment of Ge{sub 1-x}Mn{sub x} films are distinguished. In the subsystem of dispersed Mn{sup 2+} ions in Ge{sub 1-x}Mn{sub x} films at temperatures below 10 K, a spin-wave resonance is observed in the magnetically ordered state due to percolation ferromagnetism. It is established that, in the films with percolation ferromagnetism, the exchange integrals determined from static measurements correspond to those determined by dynamic measurements.
- OSTI ID:
- 21246876
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 6 Vol. 108; ISSN JTPHES; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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