Crystal Structure and Magnetic Properties of Pyrrhotite-Type Compounds Fe7-yVyS8

N.V. Selezneva, P.N.G. Ibrahim, N.M. Toporova, E.M. Sherokalova, N.V. Baranov
2018 Acta Physica Polonica. A  
The pyrrhotite-type compounds Fe7¡yVyS8 have been synthesized and studied by means of the X-ray diffraction and magnetization measurements in order to reveal how the substitution of V for Fe affects the crystal structure, phase transition and magnetic properties. The growth of the V content in Fe7¡yVyS8 results in changes of the crystal structure and leads to a sharp decrease in the resultant magnetization, non-monotonous change of the coercive field and reduction of the magnetic ordering
more » ... etic ordering temperature. Unlike ferrimagnetic ordering in pyrrhotite Fe7S8 the compound V7S8 is observed to exhibit a Pauli-paramagnetic behaviour.
doi:10.12693/aphyspola.133.450 fatcat:kqj4hlus2zak5awm6mjhizyzo4