STATISTICAL CORRELATIONS ON THE BIOSURFACE IN BI2SR2CACU2O8-X SINGLE-CRYSTALS

被引:3
作者
CHANG, A
IVANCHENKO, YM
RONG, ZY
WOLF, EL
机构
[1] Department of Physics, Polytechnic University, Brooklyn, NY 11201
关键词
D O I
10.1016/0039-6028(92)90092-K
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
Low temperature scanning tunneling microscope techniques are applied to study statistical properties of the BiO plane in 2212 high-T(c) single crystals. The correlation functions of height deviations in x and k-spaces have been numerically obtained. Long range power law correlations have been found and attributed to half lattice cell jumps of known height in the c direction. Analysis of the correlation function in k-space reveals two modulating superstructures in the b direction. The most pronounced structure is the well known superstructure with period a1 almost-equal-to 27 angstrom. The other one has period a2 almost-equal-to 58 angstrom which is a little more than twice the period of the main superstructure.
引用
收藏
页码:L504 / L508
页数:5
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