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Diamagnetic shift of the A free exciton in CuGaSe2 single crystals

Luckert, F. and Yakushev, M. V. and Faugeras, C. and Karotki, A. V. and Mudryi, A. V. and Martin, R. W. (2010) Diamagnetic shift of the A free exciton in CuGaSe2 single crystals. Applied Physics Letters, 97 (16). ISSN 0003-6951

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Single crystals of CuGaSe2 were studied using magnetophotoluminescence inmagnetic fields up to 20 T at 4.2 K. The rate of the diamagnetic shift in the A free exciton peak was determined to be 9.82 x 10(-6) eV/T-2. This rate was used to calculate the reduced mass as 0.115m(0), the binding energy as 12.9 meV, the Bohr radius as 5.1 nm and an effective hole mass of 0.64m(0) (m(0) is the free electron mass) of the free A exciton using a low-field perturbation approach and the hydrogenic model.

Item type: Article
ID code: 29007
Keywords: electical properties, thin films, cuinse2, crystals, Physics, Physics and Astronomy (miscellaneous)
Subjects: Science > Physics
Department: Faculty of Science > Physics
Depositing user: Pure Administrator
Date Deposited: 07 Mar 2011 23:22
Last modified: 01 Oct 2015 20:14
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