Observations of anisotropic electron scattering on graphite with a low-temperature scanning tunneling microscope

被引：54
作者：
Kushmerick, JG
Kelly, KF
Rust, HP
Halas, NJ [1 ]
Weiss, PS
机构：
[1] Penn State Univ, Dept Chem, Davey Lab 152, University Pk, PA 16802 USA
[2] Rice Univ, Dept Elect & Comp Engn, Rice Quantum Inst, Houston, TX 77251 USA
[3] Rice Univ, Ctr Nanoscale Sci & Technol, Houston, TX 77251 USA
[4] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 1999年 / 103卷 / 10期
关键词：
D O I：
10.1021/jp983648v
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 microscopy was used to observe anisotropic (3-fold) scattering from point defects on a graphite surface. Such scattering from defects was theoretically predicted but is not typically apparent in room temperature scanning tunneling microscope images. This 3-fold scattering was previously observed only with C-60-functionalized tips. The occupancy of the density of electronic states of the tungsten probe tip is sharpened sufficiently at cryogenic temperatures to enable the electron scattering to be imaged.
引用
收藏
页码：1619 / 1622
页数：4
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