Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
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Talks Monday February 4<br />
Magnetic Whirls in Chiral Magnets<br />
Achim Rosch, University of Cologne, Germany<br />
In cubic magnets without inversion symmetry, lattices of magnetic whirls, socalled<br />
skyrmions are stabilized by spin-orbit interactions and thermal fluctuations.<br />
The coupling of these magnetic whirls to electrons can be described<br />
by emergent electric and magnetic field. This coupling is very efficient and<br />
allows to move the skyrmions by ultrasmall current densities. The emergent<br />
fields can be used to detect the presence and motion of the skyrmions. We also<br />
discuss how such skyrmion phases can be created and destroyed by changing<br />
the topology of the magnetic structure.<br />
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