X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor

Experiment and theory

S. Picozzi, L. Ottaviano, M. Passacantando, G. Profeta, A. Continenza, F. Priolo, M. Kim, Arthur J Freeman

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Accurate first-principles calculations of soft x-ray absorption spectra are compared with experimental data obtained for the ion-implanted Mnx Ge1-x ferromagnetic semiconductor. The well-defined features in the spectra are recognized as a signature of homogeneous Mn dilution within the Ge host, as demonstrated by comparing the Mn spectra in diluted MnGe alloys with other competing Mn-Ge crystalline phases. Moreover, provided that an efficient Mn dilution is achieved, the nature of the semiconducting host is shown to affect only slightly the Mn absorption spectrum, as shown by the similarity of the present results with those for other magnetic semiconductors. Both these findings establish the relevance of ion-implantation in the dilute magnetic semiconductor framework, emphasizing its potential impact in device technology.

Original languageEnglish
Article number062501
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number6
DOIs
Publication statusPublished - Feb 7 2005

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absorption spectroscopy
dilution
absorption spectra
x rays
x ray spectra
x ray absorption
ion implantation
signatures
ions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Picozzi, S., Ottaviano, L., Passacantando, M., Profeta, G., Continenza, A., Priolo, F., ... Freeman, A. J. (2005). X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor: Experiment and theory. Applied Physics Letters, 86(6), 1-3. [062501]. https://doi.org/10.1063/1.1861127

X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor : Experiment and theory. / Picozzi, S.; Ottaviano, L.; Passacantando, M.; Profeta, G.; Continenza, A.; Priolo, F.; Kim, M.; Freeman, Arthur J.

In: Applied Physics Letters, Vol. 86, No. 6, 062501, 07.02.2005, p. 1-3.

Research output: Contribution to journalArticle

Picozzi, S, Ottaviano, L, Passacantando, M, Profeta, G, Continenza, A, Priolo, F, Kim, M & Freeman, AJ 2005, 'X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor: Experiment and theory', Applied Physics Letters, vol. 86, no. 6, 062501, pp. 1-3. https://doi.org/10.1063/1.1861127
Picozzi S, Ottaviano L, Passacantando M, Profeta G, Continenza A, Priolo F et al. X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor: Experiment and theory. Applied Physics Letters. 2005 Feb 7;86(6):1-3. 062501. https://doi.org/10.1063/1.1861127
Picozzi, S. ; Ottaviano, L. ; Passacantando, M. ; Profeta, G. ; Continenza, A. ; Priolo, F. ; Kim, M. ; Freeman, Arthur J. / X-ray absorption spectroscopy in Mnx Ge1-x diluted magnetic semiconductor : Experiment and theory. In: Applied Physics Letters. 2005 ; Vol. 86, No. 6. pp. 1-3.
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