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High pressure phase transformation in MnS
Author(s) -
Kraft A.,
Greuling B.
Publication year - 1988
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170230504
Subject(s) - electrical resistivity and conductivity , diamond anvil cell , phase (matter) , phase transition , materials science , diamond , analytical chemistry (journal) , conductivity , high pressure , activation energy , band gap , chemistry , mineralogy , thermodynamics , composite material , optoelectronics , electrical engineering , physics , organic chemistry , chromatography , engineering
The structural, optical and electrical behaviour of MnS under high pressure was investigated. For X‐ray investigations and optical observations a gasketed diamond anvil cell was used. Measurements of the electrical conductivity were performed in a Bridgman opposed‐anvil apparatus. A structural phase transition at 7.2 GPa from the cubic α‐phase (NaCl‐type) to the B16‐type structure (GeS‐type) was detected by X‐ray investigations and confirmed by optical observations. Measurements of the electrical conductivity showed a linear decreasing electrical gap energy in dependence on pressure.