the group velocity of longitudinal phonons and the isothermal compressibility etc. which are related to the disorder and/or thermal motion in the polymer materials
can be obtained from the thermal diffuse scattering. The theory and application of the thermal diffuse scattering are introduced and described detailly in this review.
关键词
热漫散射热运动电子密度涨落纵声子群速
Keywords
words Thermal diffuse scatteringThermal motionFluctuation of the electron densityGroup velocity of longitudinal phonons