Elastic moduli of ReO/sub 3/ by Brillouin scattering

Journal Article · Thu Dec 01 04:00:00 EST 1977 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(77)90012-3· OSTI ID:5309491

Benner, R E ^[1]; Brody, E M; Shanks, H R

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1. Univ. of Rochester, NY

Brillouin light scattering has been used to measure elastic stiffness constants in the metal ReO/sub 3/: c/sub 11/ = (71.7 +- 3.5) x 10/sup 11/ dynes/cm/sup 2/, c/sub 44/ = (7.11 +- 0.25) x 10/sup 11/ dynes/cm/sup 2/, and c/sub 12/ = (10.3 +- 3.4) x 10/sup 11/ dynes/cm/sup 2/. These values are significantly higher than those obtained ultrasonically at room temperature by Pearsall and Coldren. Since the Brillouin study employs light which heats the scattering volume, it probes lattice forces at an effectively high temperature. Additional data taken at lower light intensity confirms the positive acoustic velocity temperature gradient.

• OSTI ID: 5309491
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 22:4; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BRILLOUIN EFFECT
CHALCOGENIDES
COHERENT SCATTERING
ELASTICITY
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM OXIDES
SCATTERING
TENSILE PROPERTIES
TRANSITION ELEMENT COMPOUNDS