Theoretical analysis for the determination of surface composition in molten Ga-Bi metal alloys by rare gas scattering

被引:12
作者
Dai, JZ [1 ]
Manson, JR [1 ]
机构
[1] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA
关键词
D O I
10.1063/1.1615958
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
A theoretical model of classical mechanical atom-surface scattering which includes both single and double collisions from a many-body target is applied to the determination of surface composition of molten metal alloys by rare gas scattering. Explicit calculations are compared with recently measured data for the scattering of monoenergetic beams of Ar atoms from the surface of liquid Ga-Bi alloys. These calculations indicate that rare gas scattering can provide a precise measure of surface segregation in the outermost layer of dilute liquid alloys. (C) 2003 American Institute of Physics.
引用
收藏
页码:9842 / 9850
页数:9
相关论文
共 30 条
[1]   GAS-SURFACE INTERACTIONS AND DYNAMICS; THERMAL ENERGY ATOMIC AND MOLECULAR BEAM STUDIES [J].
Barker, J. A. ;
Auerbach, D. J. .
SURFACE SCIENCE REPORTS, 1984, 4 (1-2) :1-99
[2]   ACCURATE POTENTIAL-ENERGY SURFACE FOR XE/PT(111) - A BENCHMARK GAS SURFACE INTERACTION POTENTIAL [J].
BARKER, JA ;
RETTNER, CT .
JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (08) :5844-5850
[3]   ATOM-SURFACE SCATTERING-THEORY [J].
BORTOLANI, V ;
LEVI, AC .
RIVISTA DEL NUOVO CIMENTO, 1986, 9 (11) :1-77
[4]   DIFFERENTIAL CROSS-SECTION FOR ATOMS INELASTICALLY SCATTERED FROM SURFACES [J].
BRAKO, R ;
NEWNS, DM .
PHYSICAL REVIEW LETTERS, 1982, 48 (26) :1859-1862
[5]   Argon scattering from liquid indium: Simulations with embedded atom potentials and experiment [J].
Chase, D ;
Manning, M ;
Morgan, JA ;
Nathanson, GM ;
Gerber, RB .
JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (20) :9279-9287
[6]   Experimental evidence for a wetting transition in liquid Ga-Pb alloys [J].
Chatain, D ;
Wynblatt, P .
SURFACE SCIENCE, 1996, 345 (1-2) :85-90
[7]   Pairing interactions and Gibbs adsorption at the liquid Bi-In surface: A resonant x-ray reflectivity study [J].
DiMasi, E ;
Tostmann, H ;
Shpyrko, OG ;
Huber, P ;
Ocko, BM ;
Pershan, PS ;
Deutsch, M ;
Berman, LE .
PHYSICAL REVIEW LETTERS, 2001, 86 (08) :1538-1541
[8]   INPLANE STRUCTURE OF THE LIQUID-VAPOR INTERFACE OF AN ALLOY - A GRAZING-INCIDENCE X-RAY-DIFFRACTION STUDY OF BISMUTH GALLIUM [J].
FLOM, EB ;
LI, MY ;
ACERO, A ;
MASKIL, N ;
RICE, SA .
SCIENCE, 1993, 260 (5106) :332-335
[10]  
Hulpke E., 1992, SPRINGER SERIES SURF, V27