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Electron mass in dilute nitrides and its anomalous dependence on hydrostatic pressure

Pettinari, G., Polimeni, A., Masia, Francesco, Trotta, R., Felici, M., Capizzi, M., Niebling, T., Stolz, W. and Klar, P. J. 2007. Electron mass in dilute nitrides and its anomalous dependence on hydrostatic pressure. Physical Review Letters 98 , 146402. 10.1103/PhysRevLett.98.146402

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Abstract

The dependence of the electron mass on hydrostatic pressure P in N-diluted GaAs 1−x N x (x=0.10% and 0.21%) is investigated by magnetophotoluminescence. Exceedingly large fluctuations (up to 60%/kbar ) in the electron mass with increasing P are found. These originate from a pressure-driven tuning of the hybridization degree between the conduction band minimum and specific nitrogen-related states. Present results suggest a hierarchy between different nitrogen complexes as regards the extent of the perturbation these complexes exert on the electronic properties of the GaAs host.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Physical Society
ISSN: 0031-9007
Last Modified: 21 Oct 2017 07:16
URI: http://orca-mwe.cf.ac.uk/id/eprint/69449

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