63,65Cu NMR and EPR Study of Doped Chalcopyrite Cu1-XPdXFeS2 Compounds

Autor:	V. L. Matukhin, Pavel Novák, Sergei Orlinskii, Andrey Nikolaevich Gavrilenko, Ecaterina V. Schmidt, Stanislav O. Garkavyi, Iliya Germanovich Sevastianov, Jiri Navratil
Rok vydání:	2021
Předmět:	Materials science Solid-state physics Chalcopyrite Doping Crystal structure Atomic and Molecular Physics and Optics Spectral line law.invention Crystal Crystallography law visual_art Thermoelectric effect visual_art.visual_art_medium Electron paramagnetic resonance
Zdroj:	Applied Magnetic Resonance. 52:1729-1737
ISSN:	1613-7507 0937-9347
DOI:	10.1007/s00723-021-01409-z
Popis:	In the present paper, we applied 63,65Cu NMR in a local field and EPR methods to study a series of Cu1-XPdXFeS2 (x = 0–0.02) compounds. These compounds have the structure of widespread chalcopyrite and attract interest due to their thermoelectric properties. To improve its thermoelectric performance, most research efforts have been focused on the optimization of the properties of CuFeS2 by proper doping. A broadening of the resonance lines of 63,65Cu NMR and the change of EPR spectra may be the result of an increase in the number of defects in the crystal lattice of the compound such as antisite and vacancies, leading to a larger spread of EFG on the resonant copper nuclei. The results obtained show that changes in the periodicity of a crystal lead to a change in the environment of atoms and can significantly modify the physical properties of a substance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b1120155101f5a4ee6a73a3a65ede9b0 https://doi.org/10.1007/s00723-021-01409-z Zobrazit plný text záznamu Full text from SpringerLink