PHONON-DEFECT SCATTERING IN HIGH THERMAL-CONDUCTIVITY DIAMOND FILMS

被引：48

作者：

MORELLI, DT ^{[1
]}

HARTNETT, TM ^{[1
]}

ROBINSON, CJ ^{[1
]}

机构：

[1] RAYTHEON CO,DIV RES,LEXINGTON,MA 02173

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 17期

关键词：

D O I：

10.1063/1.106096

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the thermal conductivity of large diamond samples grown by both hot filament and microwave plasma assisted chemical vapor deposition in order to study in detail the processes limiting heat conduction in this system. For samples containing nearly 100% diamond material and no apparent defects, the thermal conductivity is consistent with that expected for polycrystalline diamond with a given crystallite size. In films prepared by the hot filament technique, we observe an additional scattering of phonons near 60 K, which we attribute to either a resonant phonon-defect interaction, or a crossover from geometrical to Rayleigh phonon-defect scattering.

引用

页码：2112 / 2114

页数：3

共 18 条

[1] THE THERMAL-CONDUCTIVITY OF ISOTOPICALLY ENRICHED POLYCRYSTALLINE DIAMOND FILMS [J].