Application of radio spectroscopy methods for the study of thermoelectrics with a chalcopyrite structure

Autor: null Novak P., null Navratil J., null Garkavyi S. O., null Sevastianov I. G., null Orlinskii S. B., null Schmidt E. V., null Gavrilenko A. N., null Matukhin V. L.
Rok vydání: 2022
Zdroj: Semiconductors. 56:21
ISSN: 1726-7315
DOI: 10.21883/sc.2022.01.53698.23
Popis: Doped chalcopyrite compounds are considered. The results of studying the spectral parameters by the 63,65Cu NMR method in a local field, as well as by the EPR method in the temperature range 15-300 K are presented. The observed broadening of the resonance lines of the NMR spectra and the detection of a paramagnetic signal in the sample at a temperature of 15 K indicate the appearance of anti-structural defects. The rapid change in the shape of the EPR spectrum line, in the temperature range 100-130 K, is associated with the structural-phase transition. Keywords: thermoelectrics, chalcopyrite compounds, antisite defects.
Databáze: OpenAIRE