Spontaneous decay of TA phonons.
Spontaneous decay of TA phonons.
复制标题
TA 声子的自发衰变。
DOI:
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发表时间:
1985
期刊:
影响因子:
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通讯作者:
H. Maris
中科院分区:
文献类型:
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作者:
Shin;H. Maris
Anharmonic decay of high-energy trans-verse acoustic (TA) phonons satisfyingA"w» kBTis studied tak ing account of the elastic anisotropy of real crystalline solids. Dispersive effects are assumed to be small. We find that the decay rate is very anisotropic. The possibility of observing this anisotropy in a phonon focusing experiment is discussed.