Consonant diminution of lattice and electronic coupling between a film and a substrate: Pb on Ge(100)

Pei Wen Chen, Yu Hsuan Lu, Tay Rong Chang, Chi Bin Wang, Li Yen Liang, Chung Huang Lin, Cheng Maw Cheng, Ku Ding Tsuei, H. T. Jeng, S. J. Tang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The dependence on thickness of electronic and lattice structures of Pb films deposited on Ge(100) substrate was investigated with angle-resolved photoemission spectroscopy and low-energy electron diffraction. Pb films grew in the (111) surface direction with two (1 × 1) domains rotated 90° relative to each other despite a square lattice of Ge(100); correspondingly, the heavy-hole band edge of Ge does not interact with quantum-well-state bands of Pb films. Symmetry arguments in terms of orbitals of Pb quantum-well states and Ge band edges correlate the consonant diminution of lattice and electronic coupling between the film and the substrate.

Original languageEnglish
Article number205401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number20
DOIs
Publication statusPublished - 2011 Nov 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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