Effects of nonuniform Mn distribution in (Ga, Mn) As

Intikhab Ulfat; Janusz Kanski; Lars Ilver; J. Sadowski; Kristian Karlsson; Arthur Ernst; Leonid Sandratskii

doi:10.1103/PhysRevB.89.045312

Effects of nonuniform Mn distribution in (Ga, Mn) As

Intikhab Ulfat, Janusz Kanski, Lars Ilver, J. Sadowski, Kristian Karlsson, Arthur Ernst, Leonid Sandratskii

Department of Many Particle Systems

Research output: Contribution to journal › Article › peer-review

Abstract

Resonant in situ photoemission from Mn 3d states in Ga1-xMnxAs is reported for Mn concentrations down to the very dilute level of 0.1%. Concentration-dependent spectral features are analyzed on the basis of first-principles calculations for systems with selected impurity positions as well as for random alloys. Effects of direct Mn-Mn interaction are found for concentrations as low as 2.5%, and are ascribed to statistical (nonuniform) distribution of Mn atoms.

Original language	English
Article number	045312
Pages (from-to)	045312
Number of pages	5
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	89
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.89.045312
Publication status	Published - Jan 2014

Fields of science

103 Physics, Astronomy

JKU Focus areas

Digital Transformation

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10.1103/PhysRevB.89.045312

Cite this

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title = "Effects of nonuniform Mn distribution in (Ga, Mn) As",

abstract = "Resonant in situ photoemission from Mn 3d states in Ga1-xMnxAs is reported for Mn concentrations down to the very dilute level of 0.1\%. Concentration-dependent spectral features are analyzed on the basis of first-principles calculations for systems with selected impurity positions as well as for random alloys. Effects of direct Mn-Mn interaction are found for concentrations as low as 2.5\%, and are ascribed to statistical (nonuniform) distribution of Mn atoms.",

author = "Intikhab Ulfat and Janusz Kanski and Lars Ilver and J. Sadowski and Kristian Karlsson and Arthur Ernst and Leonid Sandratskii",

year = "2014",

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AU - Ulfat, Intikhab

AU - Kanski, Janusz

AU - Ilver, Lars

AU - Sadowski, J.

AU - Karlsson, Kristian

AU - Ernst, Arthur

AU - Sandratskii, Leonid

PY - 2014/1

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N2 - Resonant in situ photoemission from Mn 3d states in Ga1-xMnxAs is reported for Mn concentrations down to the very dilute level of 0.1%. Concentration-dependent spectral features are analyzed on the basis of first-principles calculations for systems with selected impurity positions as well as for random alloys. Effects of direct Mn-Mn interaction are found for concentrations as low as 2.5%, and are ascribed to statistical (nonuniform) distribution of Mn atoms.

AB - Resonant in situ photoemission from Mn 3d states in Ga1-xMnxAs is reported for Mn concentrations down to the very dilute level of 0.1%. Concentration-dependent spectral features are analyzed on the basis of first-principles calculations for systems with selected impurity positions as well as for random alloys. Effects of direct Mn-Mn interaction are found for concentrations as low as 2.5%, and are ascribed to statistical (nonuniform) distribution of Mn atoms.

U2 - 10.1103/PhysRevB.89.045312

DO - 10.1103/PhysRevB.89.045312

M3 - Article

SN - 2469-9969

VL - 89

SP - 045312

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

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