SHOCK-INDUCED SPLITTING OF THE TRIPLY DEGENERATE RAMAN LINE IN DIAMOND

被引：28

作者：

BOTELER, JM ^{[1
]}

GUPTA, YM ^{[1
]}

机构：

[1] WASHINGTON STATE UNIV,DEPT PHYS,PULLMAN,WA 99164

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.71.3497

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Strain-induced symmetry changes in diamond have been observed in shock compression experiments. The experimental method utilizes time-resolved Raman spectroscopy to probe the diamond structure behind the shock front. Peak longitudinal stresses to 50 GPA were achieved by uniaxial strain loading. Strain applied along the [100] and [110] directions is predicted to partially or completely lift the triple degeneracy of the ambient Raman line. The degenerate Raman line was observed to split in accordance with the predicted behavior. The observed changes, despite the large nonhydrostatic stresses, are reversible.

引用

页码：3497 / 3500

页数：4

共 14 条

[1] RAMAN-SPECTRA OF DIAMOND AT HIGH-PRESSURES [J].

BOPPART, H ;

VANSTRAATEN, J ;

SILVERA, IF .

PHYSICAL REVIEW B, 1985, 32 (02) :1423-1425

[2]

BOTELER JM, 1993, THESIS WASHINGTON ST

[3]

CARDONA M, 1982, TOPICS APPLIED PHYSI, V50

[4] GAS GUN FOR IMPACT STUDIES [J].

FOWLES, GR ;

DUVALL, GE ;

ASAY, J ;

BELLAMY, P ;

FEISTMAN.F ;

GRADY, D ;

MICHAELS, T ;

MITCHELL, R .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1970, 41 (07) :984-&

[5] A LATTICE THEORY OF MORPHIC EFFECTS IN CRYSTALS OF DIAMOND STRUCTURE [J].

GANESAN, S ;

MARADUDI.AA ;

OITMAA, J .

ANNALS OF PHYSICS, 1970, 56 (02) :556-&

[6]

GONCHAROV AF, 1985, JETP LETT+, V41, P184

[7] EFFECT OF UNIAXIAL STRESS ON ZONE-CENTER OPTICAL PHONON OF DIAMOND [J].

GRIMSDITCH, MH ;

ANASTASSAKIS, E ;

CARDONA, M .

PHYSICAL REVIEW B, 1978, 18 (02) :901-904

[8]

Gupta Y. M., 1992, Shock Compression of Condensed Matter - 1991. Proceedings of the American Physical Society Topical Conference, P15

[9]

GUSTAVSEN RL, IN PRESS

[10] PRESSURE-DEPENDENCE OF THE 1ST-ORDER RAMAN MODE IN DIAMOND [J].

HANFLAND, M ;

SYASSEN, K ;

FAHY, S ;

LOUIE, SG ;

COHEN, ML .

PHYSICAL REVIEW B, 1985, 31 (10) :6896-6899

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