DIFFUSION AND VIBRATION OF ADATOMS ON A SOLID-SURFACE

被引：55
作者：
CHEN, LY
YING, SC
机构：
[1] Department of Physics, Brown University, Providence
来源：
PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.71.4361
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A microscopic theory for the diffusive and vibrational motion of absorbed atoms on a solid surface is presented. We evaluate and analyze the dynamical structure factor. The quasielastic scattering peak is found to consist of mixed contributions from both diffusion and vibration. The vibrational peak in the dynamic structure factor indicates both a shift and broadening from anharmonic effects and frictional damping. Applied to Na on Cu(001) surface, the theory agrees quantitatively with recent experimental measurements.
引用
收藏
页码：4361 / 4364
页数：4
相关论文
共 15 条
[1]   THEORY OF CLASSICAL SURFACE-DIFFUSION [J].
ALANISSILA, T ;
YING, SC .
PROGRESS IN SURFACE SCIENCE, 1992, 39 (03) :227-323
[2]  
Chen L., IN PRESS
[3]   NEUTRON SCATTERING FROM A LIQUID ON A JUMP DIFFUSION MODEL [J].
CHUDLEY, CT ;
ELLIOTT, RJ .
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1961, 77 (494) :353-&
[4]   OBSERVATION OF JUMP DIFFUSION OF ISOLATED SODIUM ATOMS ON A CU(001) SURFACE BY HELIUM ATOM SCATTERING [J].
ELLIS, J ;
TOENNIES, JP .
PHYSICAL REVIEW LETTERS, 1993, 70 (14) :2118-2121
[5]  
ELLIS J, IN PRESS
[6]   THEORY OF DIFFUSION IN PERIODIC-SYSTEMS - THE DIFFUSION-COEFFICIENT [J].
FERRANDO, R ;
SPADACINI, R ;
TOMMEI, GE .
SURFACE SCIENCE, 1992, 265 (1-3) :273-282
[7]   KRAMERS PROBLEM IN PERIODIC POTENTIALS - JUMP RATE AND JUMP LENGTHS [J].
FERRANDO, R ;
SPADACINI, R ;
TOMMEI, GE .
PHYSICAL REVIEW E, 1993, 48 (04) :2437-2451
[8]   ON VIBRATIONAL LINESHAPES OF ADSORBED MOLECULES [J].
GADZUK, JW ;
LUNTZ, AC .
SURFACE SCIENCE, 1984, 144 (2-3) :429-450
[9]   DIFFUSION OF ADSORBATES ON METAL-SURFACES [J].
GOMER, R .
REPORTS ON PROGRESS IN PHYSICS, 1990, 53 (07) :917-1002
[10]  
LAUBEREA A, 1977, CHEM BIOL APPLICATIO, V2
12