title: Self-assembled nanowires with giant Rashba split bands.
abstract: We investigated Pt-induced nanowires on the Si(110) surface using scanning tunneling microscopy (STM) and angle-resolved photoemission. High resolution STM images show a well-ordered nanowire array of 1.6 nm width and 2.7 nm separation. Angle-resolved photoemission reveals fully occupied one-dimensional (1D) bands with a Rashba-type split dispersion. Local dI/dV spectra further indicate well-confined 1D electron channels on the nanowires, whose density of states characteristics are consistent with the Rashba-type band splitting. The observed energy and momentum splitting of the bands are among the largest ever reported for Rashba systems, suggesting the Pt-Si nanowire as a unique 1D giant Rashba system. This self-assembled nanowire can be exploited for silicon-based spintronics devices as well as the quest for Majorana fermions.
authors: Department of Physics and Center for Low Dimensional Electronic Symmetry, Pohang University of Science and Technology, Pohang, Korea.
authors: Jewook
authors: J
authors: Park
authors: Sung Won
authors: SW
authors: Jung
authors: Min-Cherl
authors: MC
authors: Jung
authors: Hiroyuki
authors: H
authors: Yamane
authors: Nobuhiro
authors: N
authors: Kosugi
authors: Han Woong
authors: HW
authors: Yeom