Author/Authors :
Bhattacharjee، نويسنده , , A. and Kusz، نويسنده , , J. and Ksenofontov، نويسنده , , V. and Sugiyarto، نويسنده , , K.H. and Goodwin، نويسنده , , H.A. and Gütlich، نويسنده , , P.، نويسنده ,
Abstract :
We have studied the X-ray powder diffraction of the spin transition material [Fe(bpp)2](NCS)2 · 2H2O (bpp: 2,6-bis(pyrazol-3-yl)pyridine) at room temperature. Two crystallographic phases have been observed depending on the sample history of this material. The results obtained corroborate the earlier observations from magnetic and calorimetric studies. Relatively prolonged exposure of the sample to X-rays caused a structural change. LIESST and Reverse-LIESST effects, characterised by 57Fe Mِssbauer spectroscopy, have been observed in this material.
