https://doi.org/10.1051/epjap/2012120259
In situ structural studies on orthorhombic SnS micro-crystals
1
Center for Nanoscience and Engineering, Indian Institute of Science, Bangalore 560012, India
2
Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
3
Department of Physics, Indian Institute of Science, Bangalore 560012, India
4
Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India
a e-mail: dr_nkreddy@rediffmail.com
Received:
2
July
2012
Revised:
13
September
2012
Accepted:
28
September
2012
Published online:
5
November
2012
In situ powder X-ray diffraction (XRD) studies on 3D micro-crystalline tin (II) sulfide (SnS) were carried out at different temperatures. While increasing temperature, the crystal structure of SnS remains stable as orthorhombic, whereas its lattice parameters and unit-cell volume are considerably varied. Further, these 3D micro-crystalline structures have showed a negative thermal expansion along the a-axis and positive expansion along the b- and c-axes. However, the overall drop along the a-axis of SnS crystals is nearly equal to their expansion along the c-axis. The observed changes in the structural properties of SnS micro-crystallites with temperature are discussed and reported.
© EDP Sciences, 2012
