Evidence of two disorder scales in Ga(AsBi)

Sebastian Imhof; Christian Wagner; Alexej Chernikov; Martin Koch; Kolja Kolata; Niko S. Köster; Sangam Chatterjee; Stephan W. Koch; Xiangfeng Lu; Shane Johnson; Daniel A. Beaton; Thomas Tiedje; Oleg Rubel; Angela Thränhardt

doi:10.1002/pssb.201000835

Evidence of two disorder scales in Ga(AsBi)

Sebastian Imhof, Christian Wagner, Alexej Chernikov, Martin Koch, Kolja Kolata, Niko S. Köster, Sangam Chatterjee, Stephan W. Koch, Xiangfeng Lu, Shane Johnson, Daniel A. Beaton, Thomas Tiedje, Oleg Rubel, Angela Thränhardt

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

19 Scopus citations

Abstract

Temperature-dependent photoluminescence in a Ga(AsBi) structure is modelled in an excitonic hopping model and compared to experiment. It is shown that theory and experiment cannot be brought into agreement when using a single energy scale. Thus, a second energy scale is introduced, resulting in a good agreement between theory and experiment. The two scales are identified with spatially large alloy disorder and additional cluster states subdividing this first scale.

Original language	English (US)
Pages (from-to)	851-854
Number of pages	4
Journal	Physica Status Solidi (B) Basic Research
Volume	248
Issue number	4
DOIs	https://doi.org/10.1002/pssb.201000835
State	Published - Apr 2011

Keywords

Disorder
Ga(AsBi)
Hopping
Kinetic Monte-Carlo simulation
Semiconductors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssb.201000835

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title = "Evidence of two disorder scales in Ga(AsBi)",

abstract = "Temperature-dependent photoluminescence in a Ga(AsBi) structure is modelled in an excitonic hopping model and compared to experiment. It is shown that theory and experiment cannot be brought into agreement when using a single energy scale. Thus, a second energy scale is introduced, resulting in a good agreement between theory and experiment. The two scales are identified with spatially large alloy disorder and additional cluster states subdividing this first scale.",

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T1 - Evidence of two disorder scales in Ga(AsBi)

AU - Imhof, Sebastian

AU - Wagner, Christian

AU - Chernikov, Alexej

AU - Koch, Martin

AU - Kolata, Kolja

AU - Köster, Niko S.

AU - Chatterjee, Sangam

AU - Koch, Stephan W.

AU - Lu, Xiangfeng

AU - Johnson, Shane

AU - Beaton, Daniel A.

AU - Tiedje, Thomas

AU - Rubel, Oleg

AU - Thränhardt, Angela

PY - 2011/4

Y1 - 2011/4

N2 - Temperature-dependent photoluminescence in a Ga(AsBi) structure is modelled in an excitonic hopping model and compared to experiment. It is shown that theory and experiment cannot be brought into agreement when using a single energy scale. Thus, a second energy scale is introduced, resulting in a good agreement between theory and experiment. The two scales are identified with spatially large alloy disorder and additional cluster states subdividing this first scale.

AB - Temperature-dependent photoluminescence in a Ga(AsBi) structure is modelled in an excitonic hopping model and compared to experiment. It is shown that theory and experiment cannot be brought into agreement when using a single energy scale. Thus, a second energy scale is introduced, resulting in a good agreement between theory and experiment. The two scales are identified with spatially large alloy disorder and additional cluster states subdividing this first scale.

KW - Disorder

KW - Ga(AsBi)

KW - Hopping

KW - Kinetic Monte-Carlo simulation

KW - Semiconductors

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JF - Physica Status Solidi (B) Basic Research

IS - 4

ER -

Evidence of two disorder scales in Ga(AsBi)

Abstract

Keywords

ASJC Scopus subject areas

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