矿物结晶过程中的声子波浪及其作用

采用 Bose量子统计方法 ,对矿物结晶过程中声子波浪的作用进行了详细讨论 ,得到了晶体生长的动力学数学模型 ,并指出外界能源的供给对晶体生长和构型有着重要的影响。讨论结果表明 ,纵声子波浪起主导作用 ,它会产生相应的化学波浪     

Localized self-trapping in two-dimensional molecular lattice with interaction between Wannier—Mott excitons and phonon lattice

We investigate the interactions of lattice phonons with Wannier--Mott exciton, the exciton that has a large radius in two-dimensional molecular lattice, by the method of continuum limit approximation, and obtain that the self-trapping can also appear in two-dimensional molecular lattice with a harmonic and nonlinear potential. The exciton effect on molecular lattice does not distort the molecular lattice but only makes it localized and the localization can also react, again through phonon coupling, to trap the energy and prevents its dispersion.     

声子在地幔矿物热传递过程中的作用

采用非平衡量子统计方法讨论了地幔矿物声子热传导的3种不同情况,得到了较为普遍的结果,结果表明在下地幔声子热传导将是主要机制.     

A relationship between phonon conductivity and seismic parameter Φ for silicate minerals

Summary The relationship between the phonon conductivity at room temperature (K _N ) and the seismic parameter () for silicate minerals is suggested. The considerations are based on the Debye model of thermal energy transport phenomena in solids and on the seismic equation of state for silicates and oxides given byAnderson (1967). The semiempirical relationship is the formK _N = 0.43^0.82 where is in km²/s² andK _N in mcal/cm s K, and the empirical relationship isK _N =(0.528±0.006) –(8.18±2.11). The laboratory data on thermal and elastic properties for several silicates were taken fromHorai andSimmons (1970).