期刊论文、会议论文

Li, ZY

英文

Ultramicroscopy

0304-3991

1998

73

1-4

147-155

44th International Field Emission Symposium

JUL 07-11, 1997

NATL RES INST MET, TSUKUBA, JAPAN

Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.^Huazhong Univ Sci & Technol, Dept Solid State Elect, Wuhan 430074, Peoples R China.

PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

ELSEVIER SCIENCE BV

10.1016/S0304-3991(97)00148-4

本校为第一且通讯机构

The paper introduced an effective binding energy Lambda'(eff) and emphasized the role it plays in the field evaporation in the configuration of a scanning tunneling microscope (STM). With this Lambda'(eff) an important modification has been made to Tsong's CE model formula for STM [Tien T. Tsong, Phys. Rev. B 44 (1991) 13 703]. As a consequence, for tip-sample distance 5 < d < 13 Angstrom, the high evaporation fields from Tsong's original formula were found greatly reduced. When d = 7.23 Angstrom, the recalculated evaporation field for Au-1 is 0.6 V/Angstrom, which is in good agreement with Ch...