Magnetic cluster phases of Mn-interstitial-free (Ga,Mn)As

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Publication Type Journal Article
School or College College of Engineering
Department Materials Science & Engineering
Creator Scarpulla, Michael
Other Author Cho, Y. J.; Liu, X.; Zhou, Y. Y.; Dubon, O. D.; Furdyna, J. K.
Title Magnetic cluster phases of Mn-interstitial-free (Ga,Mn)As
Date 2007
Description We report an investigation of magnetic cluster phases of (Ga,Mn)As of varying dosages formed by Mn ion implantation followed by pulsed-laser melting (II-PLM). A systematic study of zero-field-cooled and field-cooled magnetization along several high-symmetry crystallographic directions reveals the presence of magnetic cluster-like phases, and manifests an unambiguous in-plane uniaxial anisotropy in all samples. Since such anisotropy has been previously seen in (Ga,Mn)As grown by molecular beam epitaxy, its observation in (Ga,Mn)As prepared by II-PLM suggests that it is an intrinsic property of (Ga,Mn)As rather than a consequence of a specific growth method. Our results also indicate a unique uniaxial component along [1 10] for the magnetic cluster phase at intermediate Mn dosage indicating that composition as well as processing may determine the details of the magnetic anisotropy in (Ga,Mn)As.
Type Text
Publisher American Institute of Physics (AIP)
Volume 893
First Page 1221
Last Page 1222
DOI 10.1063/1.2730339
citatation_issn 0094243X
Subject Magnetic cluster phases; Gallium Arsenide; Ferromagnetic semiconductors; Interstitials
Subject LCSH Semiconductors -- Magnetic properties; Semiconductor doping; Ion implantation; Epitaxy; Anisotropy; Semiconductors -- Defects
Language eng
Conference Title PHYSICS OF SEMICONDUCTORS: 28th International Conference on the Physics of Semiconductors - ICPS 2006; 24-28 July 2006; Vienna (Austria)
Bibliographic Citation Cho, Y. J, Scarpulla, M., Liu, X., Zhou, Y. Y., Dubon, O. D., & Furdyna, J. K. (2007). Magnetic cluster phases of Mn-interstitial-free (Ga,Mn)As. AIP Conference Proceedings, 893, 1221-2.
Rights Management (c)American Institute of Physics. The following article appeared in Cho, Y. J, Scarpulla, M., Liu, X., Zhou, Y. Y., Dubon, O. D., & Furdyna, J. K., AIP Conference Proceedings, 893, 2007 and may be found at
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Identifier ir-main,12259
ARK ark:/87278/s6gf1btm
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Date Created 2012-06-13
Date Modified 2021-05-06
ID 704459
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