Structural and magnetic properties of Fe1−x Co x Se1.09 nanoparticles obtained by thermal decomposition
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URI (for links/citations):
https://elib.sfu-kras.ru/handle/2311/33119Author:
Ли, О. А.
Lin, Chun-Rong
Chen, Hung-Yi
Hsu, Hua-Shu
Wu, Kai-Wun
Tseng, Yaw-Teng
Bayukov, O. A.
Edelman, I. S.
Ovchinnikov, S. G.
Shih, Kun-Yauh
Corporate Contributor:
Институт инженерной физики и радиоэлектроники
Кафедра физики
Date:
2015-12Journal Name:
Materials Research ExpressJournal Quartile in Scopus:
без квартиляJournal Quartile in Web of Science:
Q3Bibliographic Citation:
Ли, О. А. Structural and magnetic properties of Fe1−x Co x Se1.09 nanoparticles obtained by thermal decomposition [Текст] / О. А. Ли, Chun-Rong Lin, Hung-Yi Chen, Hua-Shu Hsu, Kai-Wun Wu, Yaw-Teng Tseng, O. A. Bayukov, I. S. Edelman, S. G. Ovchinnikov, Kun-Yauh Shih // Materials Research Express. — 2015. — Т. 2 (№ 12).Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Abstract:
A series of Fe1−x CoxSe1.09 (x = 0 to 1) nanoparticles were synthesized by thermal decomposition method. Particles in composition range Fe0.5Co0.5Se1.09 to CoSe1.09 crystallized in monoclinic structure of Co6.8Se8, while FeSe1.09 crystallized in hexagonal structure of FeSe achavalite. Magnetization dependences on temperature and external magnetic field reveal complicated magnetic behavior and correspond to the sum of paramagnetic and superparamagnetic response. Mössbauer spectra contain several paramagnetic doublets with parameters corresponding to nonequivalent positions of divalent and trivalent iron cations with low spin. The nonequivalent positions appeared due to inhomogeneous distribution of Co ions or metal vacancies in iron surrounding.