Crystal structure and magnetization of a Co3B2O6 single crystal

Autor:	L. N. Bezmaternykh, Oleg A. Bayukov, D. A. Velikanov, A. D. Vasil’ev, Sergey Ovchinnikov, Ya. V. Zubavichus, Yu. V. Knyazev, Evgeniy Eremin, N. V. Kazak, N. B. Ivanova, M. S. Platunov
Rok vydání:	2013
Předmět:	Crystal Magnetic anisotropy Magnetization Materials science Magnetic domain Magnetic moment Condensed matter physics General Physics and Astronomy Crystal structure Single crystal Magnetic susceptibility
Zdroj:	Journal of Experimental and Theoretical Physics. 117:94-107
ISSN:	1090-6509 1063-7761
DOI:	10.1134/s1063776113060186
Popis:	The crystal structure and magnetic properties of Co3B2O6 single crystals are studied. Orthorhombic symmetry with space group Pnnm is detected at room temperature. The measurements of static magnetization and dynamic magnetic susceptibility reveal two magnetic anomalies at T 1 = 33 K and T 2 = 10 K and an easy-axis magnetic anisotropy. The effective magnetic moment indicates a high-spin state of the Co2+ ion. A spin-flop transition is found at low temperatures and H sf = 23 kOe. EXAFS spectra of the K-edge absorption of Co are recorded at various temperatures, the temperature-induced changes in the parameters of the local environment of cobalt are analyzed, and the effective Co-Co and Co-O distances are determined. The magnetic interactions in the crystal are analyzed in terms of an indirect coupling model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::74e3cb2f307bebd6ba72d9b16eb8ef0d https://doi.org/10.1134/s1063776113060186 Zobrazit plný text záznamu Plný text ve formátu PDF