title: Realization of a Strained Atomic Wire Superlattice.
abstract: A superlattice of strained Au-Si atomic wires is successfully fabricated on a Si surface. Au atoms are known to incorporate into the stepped Si(111) surface to form a Au-Si atomic wire array with both one-dimensional (1D) metallic and antiferromagnetic atomic chains. At a reduced density of Au, we find a regular array of Au-Si wires in alternation with pristine Si nanoterraces. Pristine Si nanoterraces impose a strain on the neighboring Au-Si wires, which modifies both the band structure of metallic chains and the magnetic property of spin chains. This is an ultimate 1D version of a strained-layer superlattice of semiconductors, defining a direction toward the fine engineering of self-assembled atomic-scale wires.
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.
authors.forename: Inkyung
authors.initials: I
authors.lastname: Song
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.
authors.forename: Jung Suk
authors.initials: JS
authors.lastname: Goh
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.
authors.forename: Sung-Hoon
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.
authors.forename: Sung Won
authors.initials: SW
authors.lastname: Jung
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.
authors.forename: Jin Sung
authors.initials: JS
authors.lastname: Shin
authors.affiliation: Department of Photo-Molecular Science, Institute for Molecular Science , Okazaki 444-8585, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yamane
authors.affiliation: Department of Photo-Molecular Science, Institute for Molecular Science , Okazaki 444-8585, Japan.
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Kosugi
authors.affiliation: Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS) , 77 Cheongam-Ro, Pohang 790-784, Korea.|Department of Physics, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Republic of Korea.
authors.forename: Han Woong
authors.initials: HW
authors.lastname: Yeom
keywords: angle-resolved photoelectron spectroscopy; nanowire; scanning tunneling microscopy; strain engineering