Maciej.bazarnik

Author(s): Niklas Romming, Henning Pralow, André Kubetzka, Markus Hoffmann, Stephan von Malottki, Sebastian Meyer, Bertrand Dupé, Roland Wiesendanger, Kirsten von Bergmann, and Stefan Heinze

Using spin-polarized scanning tunneling microscopy and density functional theory we demonstrate the occurrence of a novel type of noncollinear spin structure in Rh/Fe atomic bilayers on Ir(111). We find that higher-order exchange interactions depend sensitively on the stacking sequence. For fcc-Rh/F...

[Phys. Rev. Lett. 120, 207201] Published Mon May 14, 2018

Inducing skyrmions in ultrathin Fe films by hydrogen exposure

Inducing skyrmions in ultrathin Fe films by hydrogen exposure, Published online: 20 April 2018; doi:10.1038/s41467-018-04015-z

Stabilization of skyrmions is one of the key issues in skyrmion-based spintronics. Here the authors demonstrate that hydrogenation can induce the formation of skyrmions in iron thin films, which provides an alternative way to tailor skyrmion states in low-dimensional magnetic materials.

2D magnetism gets hot

2D magnetism gets hot, Published online: 10 April 2018; doi:10.1038/s41565-018-0128-9

The demonstration of room-temperature ferromagnetism in an atomically thin layer broadens the prospects for device applications of 2D van der Waals materials.

MIT launches multimillion-dollar collaboration to develop fusion energy

MIT launches multimillion-dollar collaboration to develop fusion energy, Published online: 09 March 2018; doi:10.1038/d41586-018-02966-3

With corporate participation, researchers seek to build a pilot fusion energy plant within 15 years.

Abstract

Author(s): Pradeep Thakur and P. Durganandini

We study the interplay of electric and magnetic order in the one-dimensional Heisenberg spin-12 XXZ chain with large Ising anisotropy in the presence of the Dzyaloshinskii-Moriya (DM) interaction and with longitudinal and transverse magnetic fields, interpreting the DM interaction as a coupling betw...

[Phys. Rev. B 97, 064413] Published Tue Feb 20, 2018

Author(s): Timofey Balashov, Christian Karlewski, Tobias Märkl, Gerd Schön, and Wulf Wulfhekel

Magnetic excitations of single atoms on surfaces have been widely studied experimentally in the past decade. Lately, systems with unprecedented magnetic stability started to emerge. Here, we present a general theoretical investigation of the stability of rare-earth magnetic atoms exposed to crystal ...

[Phys. Rev. B 97, 024412] Published Fri Jan 12, 2018

We report on the first example of a self-assembled rare earth cluster superlattice. As a template, we use the moiré pattern formed by graphene on Ir(111); its lattice constant of 2.52 nm defines the interparticle distance. The samarium cluster superlattice forms for substrate temperatures during deposition ranging from 80 to 110 K, and it is stable upon annealing to 140 K. By varying the samarium coverage, the mean cluster size can be increased up to 50 atoms, without affecting the long-range order. The spatial order and the width of the cluster size distribution match the best examples of metal cluster superlattices grown by atomic beam epitaxy on template surfaces.