2ND-ORDER RAMAN-SCATTERING OF SMALL GE PARTICLES IN RESONANCE WITH THE E(1) AND E(1)+DELTA-1 EDGES

被引：9

作者：

SASAKI, Y

HORIE, C

机构：

[1] Department of Basic Science, Ishinomaki Senshu University

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.48.2009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Second-order Raman spectra of Ge particles with sizes of about 10 nm have been studied under resonance with the E1 and E1 + DELTA1 edges. The obtained spectra are analyzed in terms of discrete electronic and vibrational energy levels and in terms of the surface phonon mode. The discreteness of those eigenstates yields a decrease in the scattering rate of holes due to the k approximately 0 phonons in the small particles. A Raman band located just below the 2TO-phonon band is attributed to the scattering by two surface phonons.

引用

页码：2009 / 2011

页数：3

共 8 条

[1] COMPARISON OF THE NEUTRON, RAMAN, AND INFRARED VIBRATIONAL-SPECTRA OF VITREOUS SIO2, GEO2, AND BEF2 [J].

GALEENER, FL ;

LEADBETTER, AJ ;

STRINGFELLOW, MW .

PHYSICAL REVIEW B, 1983, 27 (02) :1052-1078

[2] SURFACE PHONONS IN SI(111) + H(1X1) [J].

HARTEN, U ;

TOENNIES, JP ;

WOLL, C ;

MIGLIO, L ;

RUGGERONE, P ;

COLOMBO, L ;

BENEDEK, G .

PHYSICAL REVIEW B, 1988, 38 (05) :3305-3310

[3]

MATUBARA T, 1977, PROG THEOR PHYS, V58, P1102

[4] MAGNETOPHONON RESONANCES IN QUANTUM WIRES [J].

MORI, N ;

MOMOSE, H ;

HAMAGUCHI, C .

PHYSICAL REVIEW B, 1992, 45 (08) :4536-4539

[5] PHONON DISPERSION RELATIONS IN GE AT 80 DEGREES K [J].

NILSSON, G ;

NELIN, G .

PHYSICAL REVIEW B, 1971, 3 (02) :364-&

[6] SECOND-ORDER RAMAN-SCATTERING IN GERMANIUM IN VICINITY OF E1, E1 + DELTA1 EDGES [J].

RENUCCI, MA ;

RENUCCI, JB ;

ZEYHER, R ;

CARDONA, M .

PHYSICAL REVIEW B, 1974, 10 (10) :4309-4323

[7] SURFACE PHONON-DISPERSION CURVES IN GAAS(110) AND GE(111)2X1 - A CRITICAL COMPARISON [J].

SANTINI, P ;

MIGLIO, L ;

BENEDEK, G ;

RUGGERONE, P .

SURFACE SCIENCE, 1991, 241 (03) :346-352

[8] RESONANT RAMAN-STUDY OF PHONON STATES IN GAS-EVAPORATED GE SMALL PARTICLES [J].

SASAKI, Y ;

HORIE, C .

PHYSICAL REVIEW B, 1993, 47 (07) :3811-3818

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