TY - JOUR
T1 - On optical phonons and elasticity in the hcp transition metals Fe, Ru and Re at high pressure
AU - Olijnyk, H.
AU - Jephcoat, A. P.
AU - Refson, K.
PY - 2001/2/11
Y1 - 2001/2/11
N2 - The frequencies of the transverse-optical Γ-point phonon were determined for the hexagonal transit-ion metals Fe, Ru and Re by high-pressure Raman spectroscopy up to 60 GPa. Comparison is made with available theoretical frequency-data. The elastic shear constants C44, determined from the Raman frequencies, are consistent with ultrasonic low-pressure data and theoretical high-pressure data and do not support the high-pressure data obtained from lattice-strain experiments.
AB - The frequencies of the transverse-optical Γ-point phonon were determined for the hexagonal transit-ion metals Fe, Ru and Re by high-pressure Raman spectroscopy up to 60 GPa. Comparison is made with available theoretical frequency-data. The elastic shear constants C44, determined from the Raman frequencies, are consistent with ultrasonic low-pressure data and theoretical high-pressure data and do not support the high-pressure data obtained from lattice-strain experiments.
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U2 - 10.1209/epl/i2001-00181-4
DO - 10.1209/epl/i2001-00181-4
M3 - Article
AN - SCOPUS:0035793520
VL - 53
SP - 504
EP - 510
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
SN - 0295-5075
IS - 4
ER -