The Effect of Cation Ion Ordering in In- Cr- Sulphur Spinel

Author

Son, B. ; Kim, S. ; Lee, B. ; Kim, C.

Author_Institution

Kookmin Univ., Seoul

fYear

2006

fDate

8-12 May 2006

Firstpage

176

Lastpage

176

Abstract

This paper investigates the magnetic properties of the FeCr₂S₄ and FeIn₂S₄ with special emphasis on cation ordering related to the quadrupole interactions. In order to study microscopic interaction mechanism, the Mossbauer spectra of sulphur spinel have been studied. The Neel temperatures were found to be 175 and 15 K for the FeCr₂S₄ and FeIn₂S₄, respectively, by Mossbauer spectroscopy. It can be understood as the strength of inter-sublattice exchange interaction Fe²⁺(A)-S^2--Cr³⁺(B) is stronger than that of the intra-sublattice exchange interaction Fe²⁺(B)-S^2--Fe²⁺(B).

Keywords

Mossbauer effect; Neel temperature; chromium compounds; exchange interactions (electron); ferromagnetic materials; indium compounds; iron compounds; quadrupole interactions; FeCr₂S₄; FeIn₂S₄; Mossbauer spectra; Mossbauer spectroscopy; Neel temperatures; cation ion ordering; inter-sublattice exchange interaction; intra-sublattice exchange interaction; microscopic interaction; quadrupole interactions; Atomic measurements; Chromium; Colossal magnetoresistance; Iron; Magnetic properties; Metal-insulator structures; Physics; Spectroscopy; Temperature; X-ray diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375676

Filename

4261610