Magnetic Bloch Oscillations and domain wall dynamics in a near-Ising ferromagnetic chain

Ursula B. Hansen, Olav F. Syljuasen, Jens Jensen, Turi K. Schaffer, Christopher R. Andersen, Jose A. Rodriguez-Rivera, Niels B. Christensen, and Kim Lefmann

Go to the profile of Nature Communications
Jun 28, 2019
0
0

Received Date: 17th June 19

When charged particles in periodic lattices are subjected to a constant electric field, they respond by oscillating. Here we demonstrate that the magnetic analogue of these Bloch oscillations are realised in a one-dimensional ferromagnetic easy axis chain. In this case, the "particle" undergoing oscillatory motion in the presence of a magnetic field is a domain wall. Inelastic neutron scattering reveals three distinct components of the low energy spin-dynamics including a signature Bloch oscillation mode. Using parameter-free theoretical calculations, we are able to account for all features in the excitation spectrum, thus providing detailed insights into the complex dynamics in spin-anisotropic chains.

Read in full at arXiv.

This is an abstract of a preprint hosted on an independent third party site. It
has not been peer reviewed but is currently under consideration at Nature
Communications.



Go to the profile of Nature Communications

Nature Communications

Nature Research, Springer Nature