Electron effective mass and Si-donor binding energy in $\mathrm{Ga}{\mathrm{As}}_{1\ensuremath{-}x}{\mathrm{N}}_{x}$ probed by a high magnetic field

Electron effective mass and Si-donor binding energy in $Ga {As}_{1 - x} N_{x}$ probed by a high magnetic field

G. Allison, S. Spasov, A. Patanè, L. Eaves, N. V. Kozlova, J. Freudenberger, M. Hopkinson, and G. Hill

Phys. Rev. B 77, 125210 – Published 12 March 2008

Abstract

We study the magnetoresistance of the dilute nitride alloy $Ga {As}_{1 - x} N_{x}$ in magnetic fields up to $47 T$ . We observe a strong magnetophonon resonance effect and a large transverse magnetoresistance, which provide the means of measuring the N-induced enhancement of the electron effective mass and of investigating the magnetic freeze-out of conduction electrons on Si donors in $Ga {As}_{1 - x} N_{x}$ .

Received 21 November 2007

DOI:https://doi.org/10.1103/PhysRevB.77.125210

Authors & Affiliations

G. Allison, S. Spasov, A. Patanè^*, and L. Eaves

School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom

N. V. Kozlova and J. Freudenberger

IFW Dresden, Institute for Metallic Materials, P.O. Box 270116, D-01171 Dresden, Germany
and Dresden High Magnetic Field Laboratory, P.O. Box 510119, D-01314 Dresden, Germany

M. Hopkinson and G. Hill

Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, S3 3JD, United Kingdom

^*Corresponding author; amalia.patane@nottingham.ac.uk

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Vol. 77, Iss. 12 — 15 March 2008

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Physical Review B

covering condensed matter and materials physics

Electron effective mass and Si-donor binding energy in $Ga {As}_{1 - x} N_{x}$ probed by a high magnetic field

G. Allison, S. Spasov, A. Patanè, L. Eaves, N. V. Kozlova, J. Freudenberger, M. Hopkinson, and G. Hill

Phys. Rev. B 77, 125210 – Published 12 March 2008

Abstract

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Physical Review B

covering condensed matter and materials physics

Electron effective mass and Si-donor binding energy in GaAs1−xNx probed by a high magnetic field

G. Allison, S. Spasov, A. Patanè, L. Eaves, N. V. Kozlova, J. Freudenberger, M. Hopkinson, and G. Hill

Phys. Rev. B 77, 125210 – Published 12 March 2008

Abstract

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Electron effective mass and Si-donor binding energy in $Ga {As}_{1 - x} N_{x}$ probed by a high magnetic field