Real-time observation of a metastable state during the phase transition in shocked cadmium sulfide

被引：43

作者：

Knudson, MD ^{[1
]}

Gupta, YM

机构：

[1] Washington State Univ, Inst Shock Phys, Pullman, WA 99164 USA

[2] Washington State Univ, Dept Phys, Pullman, WA 99164 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.81.2938

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method was developed to perform ps time-resolved electronic spectroscopy in shock wave experiments, and used to examine the initial stages of the phase transition in CdS. Changes in the electronic spectra were observed with 100 ps resolution in single crystals shocked to stresses between 3.6-8.8 Cpa. The absorption results suggest that the initial stage of the transition is characterized by a very rapid transformation to an indirect band gap material. Along with earlier ns continuum data, these results make a strong case for a metastable state during the phase transition in shocked CdS.

引用

页码：2938 / 2941

页数：4

共 17 条

[1] OPTICAL-ABSORPTION, RESISTIVITY, AND PHASE-TRANSFORMATION IN CDS AT HIGH-PRESSURE [J].

BATLOGG, B ;

JAYARAMAN, A ;

VANCLEVE, JE ;

MAINES, RG .

PHYSICAL REVIEW B, 1983, 27 (06) :3920-3923

[2] Band structure of CdS and CdSe at high pressure [J].

Cervantes, P ;

Williams, Q ;

Cote, M ;

Zakharov, O ;

Cohen, ML .

PHYSICAL REVIEW B, 1996, 54 (24) :17585-17590

[3] VOLUME COMPRESSIBILITY OF BE0 AND OTHER 2-6 COMPOUNDS [J].

CLINE, CF ;

STEPHENS, DR .

JOURNAL OF APPLIED PHYSICS, 1965, 36 (09) :2869-&

[4] PHASE-TRANSITIONS UNDER SHOCK-WAVE LOADING [J].

DUVAL, GE ;

GRAHAM, RA .

REVIEWS OF MODERN PHYSICS, 1977, 49 (03) :523-579

[5] THE EFFECT OF PRESSURE ON ZINC BLENDE AND WURTZITE STRUCTURES [J].

EDWARDS, AL ;

SLYKHOUSE, TE ;

DRICKAMER, HG .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1959, 11 (1-2) :140-148

[6]

FENG R, 1996, UNPUB

[7] EXPERIMENTAL FACILITY TO PRODUCE AND MEASURE COMPRESSION AND SHEAR-WAVES IN IMPACTED SOLIDS [J].

GUPTA, YM ;

KEOUGH, DD ;

WALTER, DF ;

DAO, KC ;

HENLEY, D ;

URWEIDER, A .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1980, 51 (02) :183-194

[8]

Johnson R. T. Jr., 1976, High Temperatures - High Pressures, V8, P31

[9] SHOCK-INDUCED PHASE TRANSITION IN SINGLE CRYSTAL CDS [J].

KENNEDY, JD ;

BENEDICK, WB .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1966, 27 (01) :125-&

[10]

OSUGI J, 1966, REV PHYS CHEM JPN, V36, P59

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