NUMERICAL STUDY OF RAMAN-SCATTERING FROM FRACTALS

被引：50

作者：

MONTAGNA, M

PILLA, O

VILIANI, G

MAZZACURATI, V

RUOCCO, G

SIGNORELLI, G

机构：

[1] UNIV ROMA I LA SAPIENZA,DIPARTIMENTO FIS,I-00185 ROME,ITALY

[2] UNIV LAQUILA,DIPARTIMENTO FIS,I-67010 LAQUILA,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.65.1136

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Raman scattering from square and cubic site-percolation lattices has been calculated and a linear scaling for the Raman coupling coefficient is found. Our results show the fluctuation origin of Raman scattering, thereby invalidating the models used so far which are based on scaling properties of the local strain and on the existence of a smooth vibrational wave function. © 1990 The American Physical Society.

引用

页码：1136 / 1139

页数：4

共 18 条

[1] RELAXATION AND NONRADIATIVE DECAY IN DISORDERED-SYSTEMS .1. ONE-FRACTON EMISSION
ALEXANDER, S
ENTINWOHLMAN, O
ORBACH, R
[J]. PHYSICAL REVIEW B, 1985, 32 (10): : 6447 - 6455
[2] VIBRATIONS OF FRACTALS AND SCATTERING OF LIGHT FROM AEROGELS
ALEXANDER, S
[J]. PHYSICAL REVIEW B, 1989, 40 (11): : 7953 - 7965
[3] LOW-FREQUENCY RAMAN-SCATTERING FROM FRACTAL VIBRATIONAL-MODES IN A SILICA-GEL
BOUKENTER, A
CHAMPAGNON, B
DUVAL, E
DUMAS, J
QUINSON, JF
SERUGHETTI, J
[J]. PHYSICAL REVIEW LETTERS, 1986, 57 (19) : 2391 - 2394
[4] BRILLOUIN-SCATTERING MEASUREMENTS OF PHONON-FRACTON CROSSOVER IN SILICA AEROGELS
COURTENS, E
PELOUS, J
PHALIPPOU, J
VACHER, R
WOIGNIER, T
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (02) : 128 - 131
[5] OBSERVATION OF FRACTONS IN SILICA AEROGELS
COURTENS, E
VACHER, R
PELOUS, J
WOIGNIER, T
[J]. EUROPHYSICS LETTERS, 1988, 6 (03): : 245 - 250
[6] FRACTONS OBSERVED
COURTENS, E
VACHER, R
STOLL, E
[J]. PHYSICA D-NONLINEAR PHENOMENA, 1989, 38 (1-3) : 41 - 55
[7] DUVAL E, 1987, EUROPHYS LETT, V3, P33
[8] DIRECT EXPERIMENTAL-DETERMINATION OF THE CROSSOVER FREQUENCY BETWEEN PHONON AND FRACTON REGIMES AND ITS SCALING BEHAVIOR IN SUPERIONIC SILVER BORATE GLASSES
FONTANA, A
ROCCA, F
FONTANA, MP
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (05) : 503 - 506
[9] VIBRATION PROPERTIES OF A PERCOLATING CLUSTER
GREST, GS
WEBMAN, I
[J]. JOURNAL DE PHYSIQUE LETTRES, 1984, 45 (24): : 1155 - 1160
[10] RAMAN-SCATTERING FROM FRACTAL STRUCTURES
KEYES, T
OHTSUKI, T
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (05) : 603 - 603

← 1 2 →