JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
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2005年
/
44卷
/
7B期
关键词:
STM;
(CH3S)(2);
Cu (111);
adsorption site;
conformational isomer;
D O I:
10.1143/JJAP.44.5390
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Scanning tunneling microscope (STM) images of isolated molecules of dimethyl disulfide, (CH3S)(2), adsorbed on a Cu (111) surface were successfully obtained at a sample temperature of 4.7 K. A (CH3S)2 molecule appears as-an elliptic protrusion in the STM images. The STM images of (CH3S)(2) Molecules revealed that the molecules have a total of six equivalent adsorption orientations on Cu (111), which are given by the combination of three equi valent adsorption sites and two conformational isomers for each adsorption site.