Journal article
Substrate orientation dependence of ferromagnetism in (Ga,Mn)As
Applied physics letters, v 93(26), 262502
29 Dec 2008
Abstract
We describe a comprehensive study of the properties of both ordered and random alloy Ga(1-x)Mn(x)As grown on (001), (311), (201), and (110) GaAs substrates. Magnetization measurements show a systematic variation in the Curie temperature with epitaxial orientation in both types of samples, even for the same average Mn concentrations. Electrical characterization and thermal annealing of the random alloy Ga(1-x)Mn(x)As samples suggest that the density of As antisite defects depends on the growth surface, providing an extrinsic origin for the observed dependence of Curie temperature on substrate orientation.
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Details
- Title
- Substrate orientation dependence of ferromagnetism in (Ga,Mn)As
- Creators
- M. J. Wilson - Pennsylvania State UniversityG. Xiang - Pennsylvania State UniversityB. L. Sheu - Pennsylvania State UniversityP. Schiffer - Pennsylvania State UniversityN. Samarth - Pennsylvania State UniversityS. J. May - Argonne National LaboratoryA. Bhattacharya - Argonne National LaboratoryArgonne National Lab. (ANL), Argonne, IL (United States)
- Publication Details
- Applied physics letters, v 93(26), 262502
- Publisher
- Amer Inst Physics
- Number of pages
- 3
- Grant note
- DE-AC02-06CH11357 / DOE (Argonne); United States Department of Energy (DOE) W911NF-06-1-0207 / DARPA/ARO (Penn State); United States Department of Defense; Defense Advanced Research Projects Agency (DARPA)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000262225700042
- Scopus ID
- 2-s2.0-58149268951
- Other Identifier
- 991021934115104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied