Magnetic behavior of the oxide spinels: Li0.5Fe2.5−2x Al x Cr x O4

Autor:	Hemant N. Joshi, U. N. Trivedi, Kunal B. Modi
Rok vydání:	2002
Předmět:	Diffraction Materials science Field (physics) Condensed matter physics Spinel Oxide General Physics and Astronomy Spin structure engineering.material chemistry.chemical_compound Crystallography Paramagnetism Magnetization chemistry Mössbauer spectroscopy engineering
Zdroj:	Pramana. 58:1031-1034
ISSN:	0973-7111 0304-4289
DOI:	10.1007/s12043-002-0212-3
Popis:	In order to study the effect of substitution of Fe3+ by Al3+ and Cr3+ in Li0.5Fe2.5O4 on its structural and magnetic properties, the spinel system Li0.5Al x Cr x Fe2.5−2x O4 (x=0.0, 0.2, 0.4, 0.5, 0.6 and 0.8) has been characterized by X-ray diffraction, high field magnetization, low field ac susceptibility and 57Fe Mossbauer spectroscopy. Contrary to the earlier reports, about 50% of Al3+ is found to occupy the tetrahedral sites. The system exhibits canted spin structure and a central paramagnetic doublet was found superimposed on magnetic sextet in the Mossbauer spectra (x>0.5).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::effcc2cd60af35a0d00413f80e95aca3 https://doi.org/10.1007/s12043-002-0212-3 Zobrazit plný text záznamu Full text from SpringerLink