Mn L3,2 x-ray absorption spectroscopy and magnetic circular dichroism in ferromagnetic Ga1-xMnxP

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Publication Type Journal Article
School or College College of Engineering
Department Materials Science & Engineering
Creator Scarpulla, Michael
Other Author Stone, P. R.; Farshchi, R.; Sharp, I. D.; Beeman, J. W.; Yu, K. M.; Arenholz, E.; Denliger, J.; Haller, E. E.; Dubon, O. D.
Title Mn L3,2 x-ray absorption spectroscopy and magnetic circular dichroism in ferromagnetic Ga1-xMnxP
Date 2007
Description We have measured the X-ray absorption (XAS) and X-ray magnetic circular dichroism (XMCD) at the Mn i32 edges in ferromagnetic Ga1-xMrixP films for 0.018<x<0.042. Large XMCD asymmetries at the L3 edge indicate significant spin-polarization of the density of states at the Fermi energy. The spectral shapes of the XAS and XMCD are nearly identical with those for Ga1-xMrixAs indicating that the hybridization of Mn d states and anion p states is similar in the two materials. Finally, compensation with sulfur donors not only lowers the ferromagnetic Curie temperature but also reduces the spin polarization of the hole states.
Type Text
Publisher American Institute of Physics (AIP)
Volume 893
First Page 1177
Last Page 1178
DOI 10.1063/1.2730317
citatation_issn 0094243X
Subject X-ray absorption; Ferromagnetic semiconductors; X-ray magnetic circular dichroism (XMCD); Gallium Manganese Phosphide; Gallium arsenide
Subject LCSH Semiconductors -- Optical properties; Semiconductors -- Magnetic properties; Absorption spectra; Magnetic circular dichroism; Semiconductor doping; X-rays -- Spectra
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 Stone, P. R., Scarpulla, M., Farshchi, R., Sharp, I. D., Beeman, J. W., Yu, K. M., Arenholz, E., Denlinger, J. D., Haller, E. E., & Dubon, O. D. (2007). Mn L3,2 x-ray absorption spectroscopy and magnetic circular dichroism in ferromagnetic Ga1-xMnxP. AIP Conference Proceedings, 893, 1177-8.
Rights Management (c)American Institute of Physics. The following article appeared in Stone, P. R., Scarpulla, M., Farshchi, R., Sharp, I. D., Beeman, J. W., Yu, K. M., Arenholz, E., Denlinger, J. D., Haller, E. E., & Dubon, O. D., AIP Conference Proceedings, 893, 2007 and may be found at http://dx.doi.org/10.1063/1.2730317
Format Medium application/pdf
Format Extent 293,459 bytes
Identifier ir-main,12258
ARK ark:/87278/s66q2frm
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Reference URL https://collections.lib.utah.edu/ark:/87278/s66q2frm
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