OBSERVATION OF SINGULAR BEHAVIOR IN THE FOCUSING OF BALLISTIC PHONONS IN GE

被引：49
作者：
HENSEL, JC
DYNES, RC
机构：
[1] Bell Laboratories, Murray Hill
来源：
PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.43.1033
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
High-resolution heat-pulse experiments reveal that transverse, ballistic phonons in Ge are focused into sharply defined beams along the [001] and [110] axes. Angular distributions within these beams display fine-structure representing focusing singularities. It is shown that these features are dependent in a sensitive way on the topology of the phonon-frequency surface. © 1979 The American Physical Society.
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页码：1033 / 1036
页数：4
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