Renormalization of the one-dimensional pi-pi[sup *] band gap on the Ge(111) 2X1 surface

Haight, R.; Baeumler, M.
May 1992
Applied Physics Letters;5/25/1992, Vol. 60 Issue 21, p2631
Academic Journal
Examines the transient narrowing of the surface state band gap on the cleaved germanium(111) 2 by 1 surface. Formation of one-dimensional bonded chains of atoms; Production of transient population by photoexcitation of the surface; Investigation of renormalization as a function of surface carrier density and laser excitation fluence.


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