Bridging Born and Lindemann criteria: The role of interstitial defects

被引:16
作者
Zhou, YJ
Jin, XF [1 ]
机构
[1] Fudan Univ, Surface Phys Lab, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
关键词
D O I
10.1103/PhysRevB.71.224113
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigate theoretically the crucial role of the interstitial defects that trigger the melting of a surface-free elemental crystal. Based on a modified J(1)-J(2) lattice model, we have studied the quasistatic and dynamic properties of a face-centered-cubic elemental crystal. The avalanche of interstitial defects due to cooperation proves to be the instability mechanism at the melting point that bridges Lindemann and Born criteria.
引用
收藏
页数:9
相关论文
共 37 条
[1]  
ALLAN G, 1980, DEFECTS RAD EFFECTS
[2]   Many-body effects in fcc metals: A Lennard-Jones embedded-atom potential [J].
Baskes, MI .
PHYSICAL REVIEW LETTERS, 1999, 83 (13) :2592-2595
[3]   First order transitions and multicritical points in weak itinerant ferromagnets [J].
Belitz, D ;
Kirkpatrick, TR ;
Vojta, T .
PHYSICAL REVIEW LETTERS, 1999, 82 (23) :4707-4710
[4]  
BIRNER S, 2000, P ENDEASD STOCKH 200
[5]   Evolution of energetics and bonding of compact self-interstitial clusters in Si [J].
Bongiorno, A ;
Colombo, L ;
Cargnoni, F ;
Gatti, C ;
Rosati, M .
EUROPHYSICS LETTERS, 2000, 50 (05) :608-614
[6]   Thermodynamics of crystals and melting [J].
Born, M .
JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (08) :591-603
[7]   MOLECULAR-DYNAMICS INVESTIGATION OF THE CRYSTAL FLUID INTERFACE .2. STRUCTURES OF THE FCC (111), (100), AND (110) CRYSTAL VAPOR SYSTEMS [J].
BROUGHTON, JQ ;
GILMER, GH .
JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (10) :5105-5118
[8]   MOLECULAR-DYNAMICS INVESTIGATION OF THE CRYSTAL FLUID INTERFACE .1. BULK PROPERTIES [J].
BROUGHTON, JQ ;
GILMER, GH .
JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (10) :5095-5104
[9]   MELTING AND THE SURFACE [J].
CAHN, RW .
NATURE, 1986, 323 (6090) :668-669
[10]   CRYSTAL DEFECTS AND MELTING [J].
CAHN, RW .
NATURE, 1978, 273 (5663) :491-492