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Fabricating van der Waals Heterostructures with Precise Rotational Alignment
Published on: July 5, 2019
Fine-tuning of the spin-density-wave state in Cr/V heterostructures via hydrogen uptake
E Kravtsov1, A Nefedov, G Nowak
1Institut für Experimentalphysik/Festkörperphysik, Ruhr-Universität Bochum, D-44780 Bochum, Germany. Institute of Metal Physics, 620219 Ekaterinburg, Russia.
Abstract:
We show that the magnetic state in rather thick Cr films can be finely tuned via hydrogen uptake into adjacent vanadium layers at rather low hydrogen pressures. By changing the hydrogen concentration and, hence, the electronic structure in the V layers, it is possible to affect the global properties of spin-density waves (SDWs) in Cr layers, including the SDW period and the Néel temperature. We provide direct experimental evidence that hydrogen uptake into V layers can be used to switch between incommensurate and commensurate SDW states in a reproducible way.
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