title: Long-range magnetic coupling between nanoscale organic-metal hybrids mediated by a nanoskyrmion lattice.
abstract: The design of nanoscale organic-metal hybrids with tunable magnetic properties as well as the realization of controlled magnetic coupling between them open gateways for novel molecular spintronic devices. Progress in this direction requires a combination of a clever choice of organic and thin-film materials, advanced magnetic characterization techniques with a spatial resolution down to the atomic length scale, and a thorough understanding of magnetic properties based on first-principles calculations. Here, we make use of carbon-based systems of various nanoscale size, such as single coronene molecules and islands of graphene, deposited on a skyrmion lattice of a single atomic layer of iron on an iridium substrate, in order to tune the magnetic characteristics (for example, magnetic moments, magnetic anisotropies and coercive field strengths) of the organic-metal hybrids. Moreover, we demonstrate long-range magnetic coupling between individual organic-metal hybrids via the chiral magnetic skyrmion lattice, thereby offering viable routes towards spin information transmission between magnetically stable states in nanoscale dimensions.
authors.affiliation: Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, D-20355 Hamburg, Germany.
authors.forename: Jens
authors.identifier: 0000000249468160
authors.initials: J
authors.lastname: Brede
authors.affiliation: Peter Grünberg Institut (PGI-1) and Institute of Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52428 Jülich, Germany.
authors.forename: Nicolae
authors.initials: N
authors.lastname: Atodiresei
authors.affiliation: Peter Grünberg Institut (PGI-1) and Institute of Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52428 Jülich, Germany.
authors.forename: Vasile
authors.initials: V
authors.lastname: Caciuc
authors.affiliation: 1] Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland [2] Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, D-20355 Hamburg, Germany.
authors.forename: Maciej
authors.initials: M
authors.lastname: Bazarnik
authors.affiliation: Peter Grünberg Institut (PGI-1) and Institute of Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52428 Jülich, Germany.
authors.forename: Ali
authors.initials: A
authors.lastname: Al-Zubi
authors.affiliation: Peter Grünberg Institut (PGI-1) and Institute of Advanced Simulation (IAS-1), Forschungszentrum Jülich and JARA, 52428 Jülich, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Blügel
authors.affiliation: Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, D-20355 Hamburg, Germany.
authors.forename: Roland
authors.initials: R
authors.lastname: Wiesendanger