Raman scattering by electron-hole excitations in silver nanocrystals

被引：31

作者：

Portales, H

Duval, E

Saviot, L

Fujii, M

Sumitomo, M

Hayashi, S

机构：

[1] Univ Lyon 1, CNRS, UMR 5620, Lab Physicochim Mat Luminescents, F-69622 Villeurbanne, France

[2] Kobe Univ, Fac Engn, Dept Elect & Elect Engn, Kobe, Hyogo 6578501, Japan

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.63.233402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Raman scattering experiments from silver nanocrystals embedded in films of amorphous silica are reported. In addition to the low-frequency peak due to vibrational quadrupolar modes, a broadband is observed in the high-frequency range, with a maximum at about 1000 cm(-1). The linear dependence of the position of this maximum on the inverse cluster radius is in agreement with Raman scattering by single or collective electron-hole excitations.

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页数：4

相关论文

共 21 条

[1] VIBRATION EIGENMODES AND SIZE OF MICROCRYSTALLITES IN GLASS - OBSERVATION BY VERY-LOW-FREQUENCY RAMAN-SCATTERING [J].

DUVAL, E ;

BOUKENTER, A ;

CHAMPAGNON, B .

PHYSICAL REVIEW LETTERS, 1986, 56 (19) :2052-2055

[2]

DUVAL E, IN PRESS PHYS REV B

[3]

FALKOVSKII LA, 1989, ZH EKSP TEOR FIZ, V68, P661

[4] LOW-FREQUENCY RAMAN-SCATTERING FROM SMALL SILVER PARTICLES EMBEDDED IN SIO2 THIN-FILMS [J].

FUJII, M ;

NAGAREDA, T ;

HAYASHI, S ;

YAMAMOTO, K .

PHYSICAL REVIEW B, 1991, 44 (12) :6243-6248

[5] THE NATURE OF THE INELASTIC BACKGROUND IN SURFACE ENHANCED RAMAN-SCATTERING SPECTRA OF COLDLY-DEPOSITED SILVER FILMS - THE ROLE OF ACTIVE-SITES [J].

GASS, AN ;

KAPUSTA, OI ;

KLIMIN, SA ;

MALSHUKOV, AG .

SOLID STATE COMMUNICATIONS, 1989, 71 (09) :749-753

[6] ELECTRONIC PROPERTIES OF FINE METALLIC PARTICLES .2. PLASMA RESONANCE ABSORPTION [J].

KAWABATA, A ;

KUBO, R .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1966, 21 (09) :1765-&

[7] ROTATIONAL MAGNETIC STATE IN DEFORMED METAL-CLUSTERS [J].

LIPPARINI, E ;

STRINGARI, S .

PHYSICAL REVIEW LETTERS, 1989, 63 (05) :570-572

[8] RAMAN-SCATTERING BY ELECTRON-HOLE PAIRS AT METAL-SURFACES [J].

MONREAL, R ;

FLORES, F ;

GAO, Y ;

LOPEZRIOS, T .

EUROPHYSICS LETTERS, 1987, 4 (01) :115-120

[9]

NESTERENKO VF, COMMUNICATION

[10] Orbital magnetic dipole mode in deformed clusters: A fully microscopic analysis [J].

Nesterenko, VO ;

Kleinig, W ;

Cruz, FFD ;

Lo Iudice, N .

PHYSICAL REVIEW LETTERS, 1999, 83 (01) :57-60