Abstract
The magnetic field and the heater temperature dependence of the attenuation of ballistic heat-pulse with transverse polarization propagating along the [100] axis were measured in Sb (0.38 or 2.1 ×10 15 /cm 3 ) doped Ge at liquid He temperatures under the magnetic field up to 60 kG in the [100] direction. The experimental results show opposite trend to theoretical calculation of the phonon scattering based on the shrinkage effect of the donor wave function. On the other hand, a theoretical prediction which takes account of the scattering of the heat-pulse phonons by either polar or homo-polar pairs under the magnetic field in the [100] direction shows qualitative agreement with the experimental results.
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