title: Tuning an Atomic Switch on a Surface with Electric and Magnetic Fields.
abstract: Controllable switching an adatom position and its magnetization could lead to a single-atom memory. Our theoretical studies show that switching adatom between different surface sites by the quantum tunneling, discovered in several experiments, can be controlled by an external electric field. Switching a single spin by magnetic fields is found to be strongly site-dependent on a surface. This could enable to control a spin-dynamics of adatom.
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik , Weinberg 2, 06120 Halle, Germany.|Physics Department, M.V. Lomonosov Moscow State University , Leninskie Gory, 119991 Moscow, Russia.
authors.forename: Oleg P
authors.initials: OP
authors.lastname: Polyakov
authors.affiliation: Max-Planck-Institut für Mikrostrukturphysik , Weinberg 2, 06120 Halle, Germany.
authors.forename: Valeri S
authors.initials: VS
authors.lastname: Stepanyuk