Abstract
| Language | English |
|---|---|
| Article number | 1800374 |
| Number of pages | 4 |
| Journal | Physica Status Solidi (RRL) - Rapid Research Letters |
| Volume | 13 |
| Issue number | 2 |
| Early online date | 29 Oct 2018 |
| DOIs | |
| Publication status | Published - 28 Feb 2019 |
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Keywords
- CuGaSe2
- excitons
- magnetic field
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A magneto‐reflectivity study of CuGaSe2 single crystals. / Yakushev, Michael V.; Mudryi, Alexander V.; Faugeras, Clement; Martin, Robert W.
In: Physica Status Solidi (RRL) - Rapid Research Letters , Vol. 13, No. 2, 1800374, 28.02.2019.Research output: Contribution to journal › Letter
TY - JOUR
T1 - A magneto‐reflectivity study of CuGaSe2 single crystals
AU - Yakushev, Michael V.
AU - Mudryi, Alexander V.
AU - Faugeras, Clement
AU - Martin, Robert W.
PY - 2019/2/28
Y1 - 2019/2/28
N2 - 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.
AB - 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.
KW - CuGaSe2
KW - excitons
KW - magnetic field
UR - https://onlinelibrary.wiley.com/journal/18626270
U2 - 10.1002/pssr.201800374
DO - 10.1002/pssr.201800374
M3 - Letter
VL - 13
JO - Physica Status Solidi (RRL) - Rapid Research Letters
T2 - Physica Status Solidi (RRL) - Rapid Research Letters
JF - Physica Status Solidi (RRL) - Rapid Research Letters
SN - 1862-6254
IS - 2
M1 - 1800374
ER -