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Volumn 89, Issue 11, 2006, Pages

Determination of the high pressure elasticity of cobalt from measured interfacial acoustic wave velocities

Author keywords

[No Author keywords available]

Indexed keywords

DIFFRACTION DATA; ELASTIC TENSOR ELEMENTS; INELASTIC X-RAY SCATTERING; LIQUID HELIUM;

EID: 33748849326     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2220537     Document Type: Article
Times cited : (20)

References (27)
  • 14
    • 33748852849 scopus 로고    scopus 로고
    • note
    • In our experiment the excitation and probe pulses were both of 100 ps duration. Wavelengths were 1064 and 532 nm, respectively. The repetition rate was 3.8 kHz.
  • 15
    • 33748869614 scopus 로고    scopus 로고
    • note
    • The acoustic waves will in general encounter a heated material as they propagate through the thermal grating which persists for some time after they are launched. However, calculation based on the measured intensity of the laser pulses, the cobalt reflectivity and skin depth at the excitation wavelength, and the thermal diffusivity indicates that surface heating associated with the laser excitation has a negligible impact on measured surface velocities. We find that a layer of a material much thinner than the acoustic wavelength is heated by about 10°C during the experimental time interval of approximately 20 ns.
  • 25
    • 3843082147 scopus 로고    scopus 로고
    • Phys. Rev. B 69, 219903(E) (2004).
    • (2004) Phys. Rev. B , vol.69
  • 26
    • 33748864903 scopus 로고    scopus 로고
    • note
    • 44 obtained directly at 1 bar is smaller than the value extrapolated from the fit to the high pressure data that is listed in Table I by approximately 4%. This may imply some difference in the crystallinity of the near-surface region (i.e., within approximately 2 μm of the surface, corresponding to the penetration depth of the acoustic wave) of the two separate crystals.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.