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

Pettinari, G., Polimeni, A., Masia, Francesco ORCID: https://orcid.org/0000-0003-4958-410X, 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:	27 Oct 2022 10:14
URI:	https://orca.cardiff.ac.uk/id/eprint/69449

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