Title :
The nature of frustrated magnetic structure in ferrite-spinel
Author :
Antoshina, L.G. ; Goryaga, A.N. ; Chursin, D.A.
Author_Institution :
Fac. of Phys., Lomonosov (M.V.) State Univ., Moscow, Russia
Abstract :
Summary form only given. For the first time the volume /spl omega/ and anisotropic /spl lambda//sub t/ magnetostrictions of NiFeCrO/sub 4/ is studied. The anomalous behaviour of /spl omega/(T) is revealed below the compensation temperature T/sub c/=325 K. We found, that /spl omega/ grows sharply with reduction of the temperature and reaches the large value (/spl omega//spl ap/200/spl middot/10/sup -6/) at the temperature T=94 K (H=12, 1 kOe). It is found the value /spl omega//spl ap/0 at T>T/sub c/.
Keywords :
chromium compounds; exchange interactions (electron); ferrites; ferromagnetic materials; frustration; iron compounds; magnetic moments; magnetic structure; magnetostriction; nickel compounds; 325 K; 94 K; NiFeCrO/sub 4/; anisotropic magnetostriction; anomalous behaviour; exchange interaction; ferrite-spinel; frustrated magnetic structure; magnetic moment; temperature effects; volume magnetostriction; Anisotropic magnetoresistance; Computational modeling; Ferrites; Magnetic anisotropy; Magnetostriction; Neural networks; Neurofeedback; Perpendicular magnetic anisotropy; Stress; Temperature;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000727
