Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 78: Correlated Electrons: Poster Session

TT 78.46: Poster

Donnerstag, 10. März 2016, 15:00–18:30, Poster D

Skyrmion caloritronics — •Sarah Schroeter, Achim Rosch, and Markus Garst — Institute for Theoretical Physics, Cologne, Germany

Skyrmions in insulating chiral magnets can be manipulated by applying a magnon current, for example, with the help of a temperature gradient. In turn, the scattering of spin-waves off skyrmions results in an emergent Lorentz force that leads to a topological magnon Hall effect. Based on our previous work [1,2], we discuss thermal transport of magnons in the presence of a dilute gas of skyrmions in a two-dimensional chiral magnet. Using the Boltzmann equation, we derive the thermal transport coefficients for the magnons as well as the effective equation of motion for the skyrmion positions.
C. Schütte and M. Garst, PRB 90, 094423 (2014).
S. Schroeter and M. Garst, Low Temp. Phys. 41, 817 (2015).