We have studied the optical properties of InSe at 4.2 K with the light propagating along the c axis of the crystal near the fundamental direct gap. In the presence of a partially modulated magnetic field, we could resolve the n = 1, 2 and 3 lines of an exciton series. We deduce the direct gap energy Eg = 1.353 ± 0.001 eV and the exciton Rydberg R = 13.7 ± 1.5 meV. The existence of the series is confirmed by photoconduction measurements.
Direct-gap excitons in InSe by modulated magneto-optics and photoconductivity / J. C., Merle; R., Bartiromo; E., Borsella; Piacentini, Mario; A., Savoia. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - STAMPA. - 28:3(1978), pp. 251-255. [10.1016/0038-1098(78)90637-3]
Direct-gap excitons in InSe by modulated magneto-optics and photoconductivity
PIACENTINI, Mario;
1978
Abstract
We have studied the optical properties of InSe at 4.2 K with the light propagating along the c axis of the crystal near the fundamental direct gap. In the presence of a partially modulated magnetic field, we could resolve the n = 1, 2 and 3 lines of an exciton series. We deduce the direct gap energy Eg = 1.353 ± 0.001 eV and the exciton Rydberg R = 13.7 ± 1.5 meV. The existence of the series is confirmed by photoconduction measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
