TRANSMISSION OF PHONONS THROUGH GRAIN-BOUNDARIES IN DIAMOND FILMS

被引：27

作者：

MORELLI, DT

UHER, C

ROBINSON, CJ

机构：

[1] UNIV MICHIGAN, DEPT PHYS, ANN ARBOR, MI 48109 USA

[2] RAYTHEON CO, DIV RES, LEXINGTON, MA 02181 USA

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 10期

关键词：

D O I：

10.1063/1.108802

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of grain boundary scattering of lattice waves in high quality diamond films has been determined by the measurement of thermal conductivity down to 0.15 K. We find that the mean free path for lattice vibrations (phonons) exceeds substantially the crystallite size and approaches the physical size of the sample. This implies that a significant transmission of phonons occurs between the grains of these polycrystalline diamond materials.

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页码：1085 / 1087

页数：3

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