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A Brief Account on the Physics and Techniques of Surfaces
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Update time: 2017-05-16
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Speaker:Prof.XIE Maohai,The University of Hong Kong

Sponsor:Prof.Ding Sunan

Time:2:00p.m.Monday,May 22nd

Place:A718,SINANO

Abstract:
In this lecture, He shall start by introducing the structural aspect of surface physics, including surface relaxation and reconstruction, reciprocal-space representation and the experimental evaluation of surface structures by electron diffraction techniques. It is then followed by a brief account on surface electronic states, intrinsic and extrinsic, and their effects on Fermi level pinning, band bending, band offset at heterojunction, etc. The lecture will end by a description of the (angle-resolved) photoemission spectroscopy technique, by which such important properties as the work function, band offset and electronic dispersion relation are determined.

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