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Showing 1 to 7 of 7 for “"Brillouin spectroscopy"”.
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An investigation of the motion of liquid short chain molecules using Rayleigh-Brillouin spectroscopy
Dynamic laser light scattering spectroscopy is used to study the motion of short chain flexible molecules in the liquid state. Depolarised Rayleigh-Brillouin scattering is used to investigate the isomers of the homologous alkane series n-pentane to n-octane. In addition to the low frequency …
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The Effect of Minor Elements on the Physical and Chemical Properties of Lower Mantle Minerals at High-Pressure
… the understanding of these problems by applying Brillouin spectroscopy to determine the sound velocities, as well as novel nuclear resonant scattering of synchrotron radiation to investigate the electronic state of iron (which is thought to influence material properties) in candidate lower mantle …
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Brillouin studies of diopside and H2O
… at ambient pressure and room temperature by Brillouin spectroscopy. The thirteen single-crystal elastic moduli (Cij) of two samples of diopsidic pyroxenes close to the ideal composition from different locations have been measured. No unusual compositional dependence of Cij values or the shear …
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New high pressure phase transition of natural orthoenstatite and sound velocity measurements at simultaneous high pressures and temperatures by laser heating
… I performed additional in situ Raman spectroscopy experiments addressing both compositional and high-temperature effects of this phase transition, providing solid evidences for the stability of orthoenstatite (Pbca) under average upper-most mantle conditions, and a potential …
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Elasticity of single-crystal iron-bearing pyrope to 20 GPa and 750 K
… Mg2.04Fe0.74Ca0.16Mn0.05Al2Si3O12, using in situ Brillouin spectroscopy and X-ray diffraction at simultaneous high P-T conditions up to 20 GPa and 750 K in an externally-heated diamond anvil cell. The derived aggregate adiabatic bulk and shear modulus (KS0, G0) at ambient conditions are 168.2 …
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Spektroskopia Brillouina stopów z pamięcią kształtu
… takich metod eksperymentalnych jak spektroskopia Brillouina fononów powierzchniowych (SBLS), dynamiczna analiza mechaniczna (DMA), mikroskopia sił atomowych (AFM) oraz mikroskopia optyczna. Sprężysta natura omawianych materiałów analizowana była w zależności od temperatury, przyłożonego naprężenia …