Clarification of enhanced ferromagnetism in Be-codoped InMnP fabricated using Mn/InP:Be bilayers grown by molecular beam epitaxy
- Title
- Clarification of enhanced ferromagnetism in Be-codoped InMnP fabricated using Mn/InP:Be bilayers grown by molecular beam epitaxy
- Other Titles
- InP:Be bilayers grown by molecular beam epitaxy
- Author
- 윤종승
- Keywords
- NEUTRAL MANGANESE ACCEPTOR; INP; MN; SEMICONDUCTORS
- Issue Date
- 2011-11
- Publisher
- Amer INST Physics
- Citation
- Applied Physics Letters, 2011, 99(19)
- Abstract
- The p-type InMnP: Be epilayers were prepared by the sequential growth of Mn/InP: Be bilayers using molecular-beam-epitaxy and the subsequent in-situ annealing at 200-300 degrees C. In triple-axis x-ray diffraction patterns, the samples revealed a shoulder peak indicative of intrinsic InMnP. The ferromagnetic transition in InMnP: Be was observed to occur at the elevated temperature of similar to 140 K, and the ferromagnetic spin-domains clearly appeared in magnetic force microscopy images. The improved ferromagnetic properties are attributed to the increased p-d hybridation due to high p-type conductivity of InMnP: Be (p similar to 10(20) cm(-3)). The results suggest that enhanced ferromagnetism can be effectively obtained from Be-codoped InMnP. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3660274]
- URI
- http://aip.scitation.org/doi/10.1063/1.3660274
- ISSN
- 0003-6951
- DOI
- 10.1063/1.3660274
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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