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Title of article :
Magnetic properties of spinel oxides, InFeMO4 (M=Mg, Co and Ni)
Author/Authors :
M. Matvejeff، نويسنده , , Minna M. and Linden، نويسنده , , J. and Motohashi، نويسنده , , T. and Karppinen، نويسنده , , M. and Yamauchi، نويسنده , , H.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
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Abstract :
The impact of cation composition on the magnetic properties in the InFeMO4 mixed spinel system (M=Mg,Co,Ni) has been studied by means of AC/DC magnetization and 57Fe Mössbauer spectroscopy measurements. Existence of a glassy state was confirmed for InFeCoO4 by AC magnetization measurement, whereas the shape of the hysteresis loop in M – H measurement suggests the presence of strong interactions between the magnetic clusters. Soft magnet-type behaviour was observed for InFeNiO4 with the value of saturation magnetization suggesting the presence of canted spin structure as a consequence of the presence of nonmagnetic indium. In the case of InFeMgO4 the further magnetic dilution due to nonmagnetic magnesium was observed to lead to clear decay in long-range magnetic order, although the presence of short-range magnetic order was confirmed by M – H and 57Fe Mössbauer measurements.
Keywords :
A. Magnetically ordered materials , A. Disordered systems , A. Spin glasses , D. Exchange and superexchange
Journal title :
Solid State Communications
Link To Document :