TY - JOUR
T1 - High pressure X-ray diffraction study of ReS2
AU - Hou, Dongbin
AU - Ma, Yanzhang
AU - Du, Jianguo
AU - Yan, Jinyuan
AU - Ji, Cheng
AU - Zhu, Hongyang
N1 - Funding Information:
This work was supported by the Defense Threat Reduction Agency ( HDTRA1–09–0034 ), the Army Research Office ( W911NF-09–1–0001 ), and the National Science Foundation ( DMR-0619215 ).
PY - 2010/11
Y1 - 2010/11
N2 - The high-pressure behavior of rhenium disulfide (ReS2) has been investigated to 51.0 GPa by in situ synchrotron X-ray diffraction in a diamond anvil cell at room temperature. The results demonstrate that the ReS2 triclinic phase is stable up to 11.3 GPa, at which pressure the ReS2 transforms to a new high-pressure phase, which is tentatively identified with a hexagonal lattice in space group P6m2. The high-pressure phase is stable up to the highest pressure in this study (51.0 GPa) and not quenchable upon decompression to ambient pressure. The compressibility of the triclinic phase exhibits anisotropy, meaning that it is more compressive along interlayer directions than intralayer directions, which demonstrates the properties of the weak interlayer van der Waals interactions and the strong intralayer covalent bonds. The largest change in the unit cell angles with increasing pressures is the increase of β, which indicates a rotation of the sulfur atoms around the rhenium atoms during the compression. Fitting the experimental data of the triclinic phase to the third-order BirchMurnaghan EOS yields a bulk modulus of KOT=23±4 GPa with its pressure derivative K OT′= 29±8, and the second-order yields K OT=49±3 GPa.
AB - The high-pressure behavior of rhenium disulfide (ReS2) has been investigated to 51.0 GPa by in situ synchrotron X-ray diffraction in a diamond anvil cell at room temperature. The results demonstrate that the ReS2 triclinic phase is stable up to 11.3 GPa, at which pressure the ReS2 transforms to a new high-pressure phase, which is tentatively identified with a hexagonal lattice in space group P6m2. The high-pressure phase is stable up to the highest pressure in this study (51.0 GPa) and not quenchable upon decompression to ambient pressure. The compressibility of the triclinic phase exhibits anisotropy, meaning that it is more compressive along interlayer directions than intralayer directions, which demonstrates the properties of the weak interlayer van der Waals interactions and the strong intralayer covalent bonds. The largest change in the unit cell angles with increasing pressures is the increase of β, which indicates a rotation of the sulfur atoms around the rhenium atoms during the compression. Fitting the experimental data of the triclinic phase to the third-order BirchMurnaghan EOS yields a bulk modulus of KOT=23±4 GPa with its pressure derivative K OT′= 29±8, and the second-order yields K OT=49±3 GPa.
KW - A. Semiconductors
KW - C. High pressure
KW - C. X-ray diffraction
KW - D. Crystal structure
KW - D. Phase transitions
UR - http://www.scopus.com/inward/record.url?scp=77957324838&partnerID=8YFLogxK
U2 - 10.1016/j.jpcs.2010.08.002
DO - 10.1016/j.jpcs.2010.08.002
M3 - Article
AN - SCOPUS:77957324838
SN - 0022-3697
VL - 71
SP - 1571
EP - 1575
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 11
ER -