DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2013 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MA: Fachverband Magnetismus

MA 25: Magnetic Heusler Compounds

MA 25.3: Talk

Wednesday, March 13, 2013, 10:00–10:15, H10

Transport Investigations of Mn3Si — •Frank Steckel, Steven Rodan, Regina Hermann, Christian G.F. Blum, Sabine Wurmehl, Bernd Büchner, and Christian Heß — Leibniz Institute for Solid State and Materials Research, Dresden, Deutschland

We investigate electronic and thermal transport phenomena of the itinerant antiferromagnet Mn3Si, which has been suggested to be a prototype material for realizing half-metallic antiferromagnetism [1] with a spin density wave below 25 K. We measured a complete set of transport coefficients: the resistivity, the Hall effect as well as the thermal conductivity, the thermopower and the Nernst effect in the temperature range from 10 K up to 300 K. In the vicinity of the antiferromagnetic transition temperature we found pronounced anomalies in the transport coefficients and a large fluctuation regime which extends to temperatures much higher (up to about 150 K) than the antiferromagnetic ordering temperature.

[1] C. Pfleiderer et al., Phys. Rev. B 65 (2002) 172404

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2013 > Regensburg