1.
Phys Rev Lett
; 84(17): 3879-82, 2000 Apr 24.
Article
in English
| MEDLINE
| ID: mdl-11019229
ABSTRACT
High pressure Raman spectroscopic studies are carried out on negative thermal expansion material ZrW2O8. The system exhibits amorphization at 2.2+/-0.3 GPa via an intermediate orthorhombic phase. In the cubic phase most modes below 50 meV are found to have negative Gruneisen parameter. Using the reported phonon density of states thermal properties are calculated and compared with the reported results. In contrast to the earlier belief, the present results show that modes of energies much higher than 10 meV also contribute substantially to the negative thermal expansion.
2.
Phys Rev B Condens Matter
; 53(23): 15667-15674, 1996 Jun 15.
Article
in English
| MEDLINE
| ID: mdl-9983401
3.
Phys Rev B Condens Matter
; 52(15): 11052-11058, 1995 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9980203
4.
5.
6.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 47(5): 3404-3411, 1993 May.
Article
in English
| MEDLINE
| ID: mdl-9960392
7.
8.
Phys Rev B Condens Matter
; 45(7): 3360-3365, 1992 Feb 15.
Article
in English
| MEDLINE
| ID: mdl-10001909
9.
10.
Phys Rev B Condens Matter
; 37(6): 2927-2932, 1988 Feb 15.
Article
in English
| MEDLINE
| ID: mdl-9944871
11.
Phys Rev B Condens Matter
; 36(11): 6142-6144, 1987 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9942300
12.
Phys Rev B Condens Matter
; 36(2): 1021-1024, 1987 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-9942907
13.
Phys Rev B Condens Matter
; 35(15): 7966-7972, 1987 May 15.
Article
in English
| MEDLINE
| ID: mdl-9941129
14.
Phys Rev B Condens Matter
; 35(9): 4345-4350, 1987 Mar 15.
Article
in English
| MEDLINE
| ID: mdl-9941985