Voids and Mn-rich inclusions in a (Ga,Mn)As ferromagnetic semiconductor investigated by transmission electron microscopy
(2011) In Applied Physics Reviews 109(8). p.1-083546- Abstract
- Voids adjacent to cubic (ZnS-type) and hexagonal (NiAs-type) Mn-rich nanocrystals are characterized using aberration-corrected transmission electron microscopy in an annealed Ga(0.995)Mn(0.005)As magnetic semiconductor specimen grown by molecular beam epitaxy. Nanobeam electron diffraction measurements suggest that the nanocrystals exhibit deviations in lattice parameter as compared to bulk MnAs. After annealing at 903 K, the magnetic transition temperature of the specimen is likely to be dominated by the presence of cubic ferromagnetic nanocrystals. In situ annealing inside the electron microscope is used to study the nucleation, coalescence, and grain growth of individual nanocrystals.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1940315
- author
- Kovacs, A. ; Sadowski, Janusz LU ; Kasama, T. ; Domagala, J. ; Mathieu, R. ; Dietl, T. and Dunin-Borkowski, R. E.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- molecular beam epitaxial growth, transmission electron microscopy, nanostructured materials, magnetic semiconductors
- in
- Applied Physics Reviews
- volume
- 109
- issue
- 8
- pages
- 1 - 083546
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000290047000070
- scopus:79955725295
- ISSN
- 1931-9401
- DOI
- 10.1063/1.3581108
- language
- English
- LU publication?
- yes
- id
- 6f8e62fa-30c0-4912-8819-93c0aa2d05fd (old id 1940315)
- date added to LUP
- 2016-04-01 11:10:46
- date last changed
- 2022-03-31 14:53:36
@article{6f8e62fa-30c0-4912-8819-93c0aa2d05fd, abstract = {{Voids adjacent to cubic (ZnS-type) and hexagonal (NiAs-type) Mn-rich nanocrystals are characterized using aberration-corrected transmission electron microscopy in an annealed Ga(0.995)Mn(0.005)As magnetic semiconductor specimen grown by molecular beam epitaxy. Nanobeam electron diffraction measurements suggest that the nanocrystals exhibit deviations in lattice parameter as compared to bulk MnAs. After annealing at 903 K, the magnetic transition temperature of the specimen is likely to be dominated by the presence of cubic ferromagnetic nanocrystals. In situ annealing inside the electron microscope is used to study the nucleation, coalescence, and grain growth of individual nanocrystals.}}, author = {{Kovacs, A. and Sadowski, Janusz and Kasama, T. and Domagala, J. and Mathieu, R. and Dietl, T. and Dunin-Borkowski, R. E.}}, issn = {{1931-9401}}, keywords = {{molecular beam epitaxial growth; transmission electron microscopy; nanostructured materials; magnetic semiconductors}}, language = {{eng}}, number = {{8}}, pages = {{1--083546}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Reviews}}, title = {{Voids and Mn-rich inclusions in a (Ga,Mn)As ferromagnetic semiconductor investigated by transmission electron microscopy}}, url = {{https://lup.lub.lu.se/search/files/2445527/1940325.pdf}}, doi = {{10.1063/1.3581108}}, volume = {{109}}, year = {{2011}}, }