THE NORMAL-MODES AT THE SURFACE OF LI AND MG

被引:57
作者
SPRUNGER, PT
WATSON, GM
PLUMMER, EW
机构
[1] Department of Physics, University of Pennsylavania, Philadelphia
基金
美国国家科学基金会;
关键词
D O I
10.1016/0039-6028(92)91307-W
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Angle-resolved reflection inelastic electron scattering has been used to measure the dispersion of the electron-gas collective modes at the surface of Li(110) and Mg(0001). The relatively strong crystal potential in Li shifts the surface plasmon energy from the value predicted by free electron theory, but the dispersion for small q(parallel-to) is still negative. For Mg the band structure has little effect and the energy and dispersion of the surface plasmon and multipole mode are normal.
引用
收藏
页码:551 / 555
页数:5
相关论文
共 20 条
[11]   EFFECTS ON PHOTOEMISSION OF THE SPATIALLY VARYING PHOTON FIELD AT A METAL-SURFACE [J].
LEVINSON, HJ ;
PLUMMER, EW ;
FEIBELMAN, PJ .
PHYSICAL REVIEW LETTERS, 1979, 43 (13) :952-955
[12]   DYNAMIC SCREENING AT SIMPLE-METAL SURFACES [J].
LIEBSCH, A .
PHYSICAL REVIEW B, 1987, 36 (14) :7378-7388
[13]   ELECTRONIC SCREENING AT METAL-SURFACES AND THE CONNECTION WITH PHYSICAL PHENOMENA [J].
LIEBSCH, A .
PHYSICA SCRIPTA, 1987, 35 (03) :354-364
[14]   OPTICAL AND PHOTOELECTRIC PROPERTIES OF ALKALI-METALS [J].
MONIN, J ;
BOUTRY, GA .
PHYSICAL REVIEW B, 1974, 9 (04) :1309-1327
[15]  
PLUMMER EW, 1987, DYNAMICAL RESPONSE M, P428
[16]   ANGULAR-DEPENDENCE OF DIPOLE SCATTERING CROSS-SECTION - SURFACE-PLASMON LOSSES ON AG(100) [J].
ROCCA, M ;
VALBUSA, U .
PHYSICAL REVIEW LETTERS, 1990, 64 (20) :2398-2401
[17]   SURFACE-PLASMON ENERGY AND DISPERSION ON AG SINGLE-CRYSTALS [J].
SUTO, S ;
TSUEI, KD ;
PLUMMER, EW ;
BURSTEIN, E .
PHYSICAL REVIEW LETTERS, 1989, 63 (23) :2590-2593
[18]   MULTIPOLE PLASMON MODES AT A METAL-SURFACE [J].
TSUEI, KD ;
PLUMMER, EW ;
LIEBSCH, A ;
KEMPA, K ;
BAKSHI, P .
PHYSICAL REVIEW LETTERS, 1990, 64 (01) :44-47
[19]   SURFACE-PLASMON DISPERSION IN SIMPLE METALS [J].
TSUEI, KD ;
PLUMMER, EW ;
FEIBELMAN, PJ .
PHYSICAL REVIEW LETTERS, 1989, 63 (20) :2256-2259
[20]   THE NORMAL-MODES AT THE SURFACE OF SIMPLE METALS [J].
TSUEI, KD ;
PLUMMER, EW ;
LIEBSCH, A ;
PEHLKE, E ;
KEMPA, K ;
BAKSHI, P .
SURFACE SCIENCE, 1991, 247 (2-3) :302-326