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Structural and magnetic properties of Cr and Mn doped InN |
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| Authors: | A. Ney R. Rajaram E. Arenholz J.S. Harris Jr. M. Samant R.F.C. Farrow S.S.P. Parkin |
| Affiliation: | 1. IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120, USA;2. Solid State and Photonics Lab, Stanford University, Stanford, CA 94305, USA;3. Advanced Light Source, LBNL, Berkeley, CA 94720, USA |
| Abstract: | We present a detailed magnetic characterization of Cr and Mn doped InN films be means of superconducting quantum interference device magnetometry and X-ray magnetic circular dichroism. The InN:Cr films exhibit ferromagnetic behavior up to 300 K in a doping region from 2% to 8% without detectable phase segregation. The easy axis of magnetization is found to be in the film plane. On the contrary, Mn-doped films show signatures of phase segregation and paramagnetic behavior. |
| Keywords: | 75.50.Dd 75.70.&minus i 78.70.Dm |
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