A magneto‐reflectivity study of CuGaSe2 single crystals
Yakushev, Michael V. and Mudryi, Alexander V. and Faugeras, Clement and Martin, Robert W. (2019) A magneto‐reflectivity study of CuGaSe2 single crystals. Physica Status Solidi (RRL) - Rapid Research Letters, 13 (2). 1800374. ISSN 1862-6254 (https://doi.org/10.1002/pssr.201800374)
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Abstract
CuGaSe2 single crystals are studied using magneto-reflectivity at 4.2 K in magnetic fields B up to 20 T. The A and B free excitons, observed in the optical reflectivity spectra, blue shift with increasing B. A low-field perturbation approach within the anisotropic hydrogenic model is used to fit the dependence of the spectral position of these excitons on B. The A and B exciton reduced masses of 0.115m0 and 0.108m0 (m0 is the free electron mass), Rydbergs of 12.9 and 12.2meV, Bohr radii 5.08 and 5.4 nm, and effective hole masses of 0.64m0 and 0.48m0, respectively, are determined.
ORCID iDs
Yakushev, Michael V., Mudryi, Alexander V., Faugeras, Clement and Martin, Robert W. ORCID: https://orcid.org/0000-0002-6119-764X;-
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Item type: Article ID code: 68316 Dates: DateEvent28 February 2019Published29 October 2018Published Online13 September 2018AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics
Strategic Research Themes > Measurement Science and Enabling TechnologiesDepositing user: Pure Administrator Date deposited: 10 Jun 2019 08:32 Last modified: 26 Sep 2024 00:45 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/68316