2 papers
cond-mat.supr-con2011
Pressure dependence of the low- temperature crystal structure and phase transition behaviour of CaFeAsF and SrFeAsF: A synchrotron x-ray diffraction study
S. K. Mishra, R. Mittal, S. L. Chaplot +8
We report systematic investigation of high pressure crystal structures and structural phase transition upto 46 GPa in CaFeAsF and 40 GPa in SrFeAsF at 40 K using powder synchrotron…
cond-mat.mtrl-sci2010
Phase stability and structural temperature dependence in sodium niobate: A high resolution powder neutron diffraction study
S. K. Mishra, R. Mittal, V. Yu. Pomjakushin +1
We report investigation of structural phase transitions in technologically important material sodium niobate as a function of temperature on heating over 300-1075 K. Our high resol…