XANES investigation of novel lanthanide-doped CuCr0.99Ln0.01S2 (Ln = La, Ce) solid solutions

XANES investigation of novel lanthanide-doped CuCr0.99Ln0.01S2 (Ln = La, Ce) solid solutions Full article

Journal

Applied Physics A
ISSN: 1432-0630 , E-ISSN: 0947-8396

Output data

Year: 2020, Volume: 126, Article number : 537, Pages count : 7 DOI: 10.1007/s00339-020-03715-y

Tags

XANES, Finite diference method, X-ray techniques, Simulation and modeling, Functional materials, Electronic materials, Magnetic properties, Seebeck coefcient

Authors

Korotaev E.V. ¹ , Syrokvashin M.M. ¹ , Filatova I.Yu. ¹ , Trubina S.V. ¹ , Nikolenko A.D. ² , Ivlyushkin D.V. ² , Zavertkin P.S. ² , Sotnikov A.V. ¹ , Kriventsov V.V. ^2,3

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
2	Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
3	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia

The study of the valence state, local environment structure and magnetic properties of novel type CuCr0.99Ln0.01S2 (Ln = La, Ce) solid solutions was carried out using X-ray absorption spectroscopy, finite difference method simulations and static magnetic susceptibility measurements. The good agreement between experimental and calculated data indicates that cationic substitution does not lead to significant changes in the copper, chromium and sulfur local environment character and electronic density distribution. The copper atoms were found to be in Cu+ oxidation state, the sulfur atoms—in S2− oxidation state and the chromium atoms—in Cr3+ state. The cationic substitution of chromium by lanthanum and cerium in CuCrS2 does not significantly affect the effective magnetic moment and exchange interactions character. The lanthanum-doped CuCr0.99Ln0.01S2 solid solution demonstrates the Seebeck coefficient value 4 times greater than for CuCrS2-matrix at 500 K.

Korotaev E.V. , Syrokvashin M.M. , Filatova I.Y. , Trubina S.V. , Nikolenko A.D. , Ivlyushkin D.V. , Zavertkin P.S. , Sotnikov A.V. , Kriventsov V.V.
XANES investigation of novel lanthanide-doped CuCr0.99Ln0.01S2 (Ln = La, Ce) solid solutions
Applied Physics A. 2020. V.126. 537 :1-7. DOI: 10.1007/s00339-020-03715-y WOS Scopus РИНЦ OpenAlex

Published online:

Jun 18, 2020

Web of science:	WOS:000546969700003
Scopus:	2-s2.0-85087055072
Elibrary:	43295970
OpenAlex:	W3036739434

DB	Citing
OpenAlex	11
Scopus	11
Elibrary	8