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 Научная публикация

Журнал

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

Вых. Данные

Год: 2020, Том: 126, Номер статьи : 537, Страниц : 7 DOI: 10.1007/s00339-020-03715-y

Ключевые слова

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

Авторы

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

Организации

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

Опубликована online:

18 июн. 2020 г.

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

БД	Цитирований
OpenAlex	11
Scopus	11
РИНЦ	8