DIRECT OBSERVATION OF SCALING BY HIGH-RESOLUTION LOW-ENERGY ELECTRON-DIFFRACTION - O ON MO(110)

被引：9

作者：

GRZELAKOWSKI, K ^{[1
]}

LYUKSYUTOV, I ^{[1
]}

BAUER, E ^{[1
]}

机构：

[1] SONDERFORSCH BEREICH 126,GOTTINGEN,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.64.32

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The critical behavior of the order-disorder transition in the (2×2) lattice of oxygen on the (110) molybdenum surface is studied by low-energy electron diffractometry with a coherence length of about 600 . The critical exponents and of a system which belongs to the universality class of the XY model with cubic anisotropy are extracted for the first time by a new method based on the general scaling properties of the correlation function. is found to be abnormally large for T>Tc and T dependent, approaching the value 0.25 for TTc. and have the (T independent) values 1.200.10, 0.840.07, and 0.190.02, respectively. © 1990 The American Physical Society.

引用

页码：32 / 35

页数：4

共 18 条

[1]

[Anonymous], STRUCTURE DYNAMICS S

[2]

[Anonymous], 1979, FLUCTUATION THEORY P

[3] STRUCTURE FACTORS ASSOCIATED WITH THE CONTINUOUS MELTING OF TWO-DIMENSIONAL LATTICE GASES - MODELS WITH (SQUARE-ROOT-3XSQUARE-ROOT-3)R30-DEGREES AND P(2X2) ORDERED STATES ON TRIANGULAR NETS [J].