Hill, Ian G.
Permanent URI for this collectionhttps://hdl.handle.net/10222/22070
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Item Open Access Strongly anisotropic band dispersion of an image state located above metallic nanowires(1999-03) Hill, IG; McLean, ABIndium can be grown on Si(111) in a 4 x I pattern that contains rows of In atoms spaced 13.3 Angstrom apart that have quasi-one-dimensional electronic structure. This ordered array of metallic wires produces an image-induced surface state series. We have measured the dispersion of the most tightly bound (n = 1) image state band and found it to be unconventional because it falls below the free electron parabola perpendicular to the In atom rows. The most straightforward explanation for this is that the electrons feel the surface corrugation potential produced by the rows of In atoms. We were able to infer the form of the potential from our measurements.Item Open Access A comparison of two high performance inverse photoemission bandpass detectors(1998-01) Hill, IG; McLean, ABNo abstract available.Item Open Access Item Open Access Detection of a Fermi level crossing in three-domain Si(111)-In(4x1)(1999-04) Hill, IG; McLean, ABUsing photoemission and inverse photoemission, it has recently been demonstrated that single domain Si(111)-In(4 X 1) overlayers possess a clear Fermi level crossing at approximate to 0.6 azimuth of the 1 x I zone, which is coincident with the azimuth of the 4 X 1 zone, with inverse photoemission, and found a Fermi level crossing at approximate to 0.6. We have now detected Fermi level crossings in both single and three domain 4X1 overlayers. [S0163-1829(99)10415-6].Item Open Access Role of Si adatoms in the Si(111)-Au(5x2) quasi-one-dimensional system(1997-06) Hill, IG; McLean, ABNo abstract available.