Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors

Mithun Bhowmick; Travis Merritt; Giti A. Khodaparast; Caitlin Feeser; Bruce W Wessels; Stephen McGill; D. Saha; X. Pan; G. D. Sanders; C. J. Stanton

doi:10.1063/1.3671731

Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors

Mithun Bhowmick^*, Travis Merritt, Giti A. Khodaparast, Caitlin Feeser, Bruce W Wessels, Stephen McGill, D. Saha, X. Pan, G. D. Sanders, C. J. Stanton

^*Corresponding author for this work

Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

We report on time resolved differential transmission experiments to provide insight into both the time scales and the nature of the microscopic interactions and carrier dynamics in MOVPE grown ferromagnetic InMnAs and InMnSb. Theoretical calculations of the electronic structure for InMnAs are performed using an 8 band kp model which includes non-parabolicity of the conduction bands; strong band-mixing of the valence bands; as well as coupling of Mn impurities to the electrons and holes. Our preliminary theoretical results explain the sign change in the differential transmission signal as a function of probe wavelength.

Original language	English (US)
Title of host publication	15th International Conference on Narrow Gap Systems, NGS15
Pages	188-191
Number of pages	4
Volume	1416
DOIs	https://doi.org/10.1063/1.3671731
State	Published - Dec 1 2011
Event	15th International Conference on Narrow Gap Systems, NGS15 - Blacksburg, VA, United States Duration: Aug 1 2011 → Aug 5 2011

Other

Other	15th International Conference on Narrow Gap Systems, NGS15
Country/Territory	United States
City	Blacksburg, VA
Period	8/1/11 → 8/5/11

Keywords

Ferromagnetic semiconductors
Narrow gap semiconductors
Time resolved spectroscopy

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3671731

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title = "Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors",

abstract = "We report on time resolved differential transmission experiments to provide insight into both the time scales and the nature of the microscopic interactions and carrier dynamics in MOVPE grown ferromagnetic InMnAs and InMnSb. Theoretical calculations of the electronic structure for InMnAs are performed using an 8 band kp model which includes non-parabolicity of the conduction bands; strong band-mixing of the valence bands; as well as coupling of Mn impurities to the electrons and holes. Our preliminary theoretical results explain the sign change in the differential transmission signal as a function of probe wavelength.",

keywords = "Ferromagnetic semiconductors, Narrow gap semiconductors, Time resolved spectroscopy",

author = "Mithun Bhowmick and Travis Merritt and Khodaparast, {Giti A.} and Caitlin Feeser and Wessels, {Bruce W} and Stephen McGill and D. Saha and X. Pan and Sanders, {G. D.} and Stanton, {C. J.}",

year = "2011",

month = dec,

day = "1",

doi = "10.1063/1.3671731",

language = "English (US)",

isbn = "9780735409934",

volume = "1416",

pages = "188--191",

booktitle = "15th International Conference on Narrow Gap Systems, NGS15",

note = "15th International Conference on Narrow Gap Systems, NGS15 ; Conference date: 01-08-2011 Through 05-08-2011",

}

Bhowmick, M, Merritt, T, Khodaparast, GA, Feeser, C, Wessels, BW, McGill, S, Saha, D, Pan, X, Sanders, GD & Stanton, CJ 2011, Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors. in 15th International Conference on Narrow Gap Systems, NGS15. vol. 1416, pp. 188-191, 15th International Conference on Narrow Gap Systems, NGS15, Blacksburg, VA, United States, 8/1/11. https://doi.org/10.1063/1.3671731

Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors. / Bhowmick, Mithun; Merritt, Travis; Khodaparast, Giti A.; Feeser, Caitlin; Wessels, Bruce W; McGill, Stephen; Saha, D.; Pan, X.; Sanders, G. D.; Stanton, C. J.

15th International Conference on Narrow Gap Systems, NGS15. Vol. 1416 2011. p. 188-191.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors

AU - Bhowmick, Mithun

AU - Merritt, Travis

AU - Khodaparast, Giti A.

AU - Feeser, Caitlin

AU - Wessels, Bruce W

AU - McGill, Stephen

AU - Saha, D.

AU - Pan, X.

AU - Sanders, G. D.

AU - Stanton, C. J.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - We report on time resolved differential transmission experiments to provide insight into both the time scales and the nature of the microscopic interactions and carrier dynamics in MOVPE grown ferromagnetic InMnAs and InMnSb. Theoretical calculations of the electronic structure for InMnAs are performed using an 8 band kp model which includes non-parabolicity of the conduction bands; strong band-mixing of the valence bands; as well as coupling of Mn impurities to the electrons and holes. Our preliminary theoretical results explain the sign change in the differential transmission signal as a function of probe wavelength.

AB - We report on time resolved differential transmission experiments to provide insight into both the time scales and the nature of the microscopic interactions and carrier dynamics in MOVPE grown ferromagnetic InMnAs and InMnSb. Theoretical calculations of the electronic structure for InMnAs are performed using an 8 band kp model which includes non-parabolicity of the conduction bands; strong band-mixing of the valence bands; as well as coupling of Mn impurities to the electrons and holes. Our preliminary theoretical results explain the sign change in the differential transmission signal as a function of probe wavelength.

KW - Ferromagnetic semiconductors

KW - Narrow gap semiconductors

KW - Time resolved spectroscopy

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U2 - 10.1063/1.3671731

DO - 10.1063/1.3671731

M3 - Conference contribution

AN - SCOPUS:84855767701

SN - 9780735409934

VL - 1416

SP - 188

EP - 191

BT - 15th International Conference on Narrow Gap Systems, NGS15

T2 - 15th International Conference on Narrow Gap Systems, NGS15

Y2 - 1 August 2011 through 5 August 2011

ER -

Time resolved spectroscopy of MOVPE grown narrow gap ferromagnetic semiconductors

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