title: "Devil's staircase" in Pb/Si(111) ordered phases.
abstract: With scanning tunneling microscopy we have found that ordered phases in Pb/Si(111) are one of the best examples of the "devil's staircase" phase diagram. Phases within a narrow coverage range (1.2<theta<1.3 monolayers) are constructed with the rules similar to the ones found in theoretical models.
authors.affiliation: Department of Physics, Iowa State University and Ames Laboratory-USDOE, Ames, Iowa 50011, USA.
authors.forename: M
authors.initials: M
authors.lastname: Hupalo
authors.forename: J
authors.initials: J
authors.lastname: Schmalian
authors.forename: M C
authors.initials: MC
authors.lastname: Tringides