Regensburg 2013 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 28: Correlated Electrons: Spin Systems, Itinerant Magnets 3
TT 28.7: Vortrag
Dienstag, 12. März 2013, 11:15–11:30, H19
Thermal transport properties of single-crystal MnSi — •Marlies Gangl, Anna Kusmartseva, Andreas Bauer, and Christian Pfleiderer — Technische Universität München, Physik Department E21, Garching, Germany
The B20 transition metal compound MnSi has long been recognised as a model system for studies of weak itinerant ferromagnetism [1], when ignoring the formation of a
well-understood helical modulation that may be suppressed in small magnetic fields. We report the thermal conductivity and thermopower of high-quality single crystals of MnSi over a wide range of temperatures from 2 to 300 K under magnetic fields up to 14 T. We discuss our findings in the framework of the spin fluctuation theory of weakly ferromagnetic compounds as recently advertised in the context of related studies of ZrZn2 [2,3].
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R.P. Smith et al., Nature 455, 1220-1223 (2008)
M. Sutherland et al., Phys. Rev. B 85, 035118 (2012)