TY - JOUR
T1 - High-pressure X-ray diffraction study of tungsten diselenide
AU - Selvi, Emre
AU - Aksoy, Resul
AU - Knudson, Russell
AU - Ma, Yanzhang
N1 - Funding Information:
The authors thank Drs. J. Hu and Q. Guo for their technical support with the X-ray diffraction measurements at Brookhaven National Laboratory. This research was supported by DOE (Agreement no. DE-FC03-03NA00144) and NSF (Grant no. DMR-0619215).
PY - 2008/9
Y1 - 2008/9
N2 - Synchrotron X-ray diffraction was used in conjunction with a diamond anvil cell to investigate the properties of a tungsten diselenide (WSe2) sample to 35.8 GPa at room temperature. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K0T, of WSe2 was determined to be 72±1 GPa with its pressure derivative, K0 T′, being 4.1±0.1. It was also found that the c-direction of the hexagonal structure is significantly more compressible than the a-direction. No phase transformation was clearly observed in the pressure range of our measurements.
AB - Synchrotron X-ray diffraction was used in conjunction with a diamond anvil cell to investigate the properties of a tungsten diselenide (WSe2) sample to 35.8 GPa at room temperature. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K0T, of WSe2 was determined to be 72±1 GPa with its pressure derivative, K0 T′, being 4.1±0.1. It was also found that the c-direction of the hexagonal structure is significantly more compressible than the a-direction. No phase transformation was clearly observed in the pressure range of our measurements.
KW - C. High pressure
KW - C. X-ray diffraction
KW - D. Equation-of-state
UR - http://www.scopus.com/inward/record.url?scp=50949113169&partnerID=8YFLogxK
U2 - 10.1016/j.jpcs.2008.04.003
DO - 10.1016/j.jpcs.2008.04.003
M3 - Article
AN - SCOPUS:50949113169
SN - 0022-3697
VL - 69
SP - 2311
EP - 2314
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 9
ER -