Magnetic structure and modification of hyperfine field in ErxY3-xFe5O12garnets: a nuclear magnetic resonance study

Autor:	Pavel Novák, T. N. Tarasenko, V. D. Doroshev, V. A. Borodin, M. M. Savosta
Rok vydání:	1991
Předmět:	Magnetic anisotropy Magnetization Nuclear magnetic resonance Magnetic moment Magnetic structure Field (physics) Chemistry Demagnetizing field General Materials Science Condensed Matter Physics Hyperfine structure Magnetic field
Zdroj:	Journal of Physics: Condensed Matter. 3:5881-5892
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/3/31/011
Popis:	The NMR on 57Fe nuclei located at octahedral and tetrahedral sites of Y3-xErxFe5O12 garnets was measured at liquid-helium temperature. By analysing the results on polycrystalline samples with x=0.2 and 2.8, obtained in a zero external field (magnetization along the (100) direction), the authors determined the non-collinear umbrella-like arrangement of the magnetic moments of Er3+ ions and modification of the hyperfine field on 57Fe nuclei caused by Er to or from Y substitution. The umbrella angle is 23(+or-3) degrees . These results were then used in the analysis of NMR of the single crystal with x=0.12 in an external magnetic field parallel to the (111) direction. In this case there are two angles characterizing the magnetic umbrella, their values being 12(+or-10) degrees and 48(+or-9) degrees .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea0eb0b783e33e53b38417199d42128b https://doi.org/10.1088/0953-8984/3/31/011 Zobrazit plný text záznamu