MODEL OF THE POTENTIAL BARRIER OUTSIDE THE SURFACE OF A CONDUCTOR WITH WALLS OF FINITE THICKNESS-Reference-Cited by-同舟云学术

MODEL OF THE POTENTIAL BARRIER OUTSIDE THE SURFACE OF A CONDUCTOR WITH WALLS OF FINITE THICKNESS

Published:2007-10 Issue:05 Volume:14 Page:963-967
ISSN:0218-625X
Container-title:Surface Review and Letters
language:en
Short-container-title:Surf. Rev. Lett.

Author:

LI L. X.¹,LIU R. P.²,ZHANG D. T.¹,LI B. H.¹,CUI Y. L.¹,ZHANG P. F.¹,SONG H. W.³

Affiliation:

1. Department of Physics & Chemistry, Henan Polytechnic University, Jiaozuo, 454000, P. R. China

2. State Key Laboratory of Metastable Materials Science & Technology, Yanshan University, Qinhuangdao 066004, P. R. China

3. Key Laboratory of Excited State Physics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, P. R. China

Abstract

Tunneling effect of graphite is studied by atomic force microscopy. The tunneling current in the gap between a conductive tip and a newly cleaved graphite surface at a given voltage keeps almost constant when the gap-distance varies within 1 μm, which cannot be explained by the commonly accepted well model of the potential outside a conductor. Thus modification of the well model is made and a cup model, with a certain wall thickness of the cup, is proposed in the present work.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218625X0701038X

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