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Dr Anna Kusmartseva, Dept. of Physics, University of Loughborough.
Wednesday 03 December 2014, 11:15-12:15
High-pressure studies into the thermal properties of MnSi
- đ¤ Speaker: Dr Anna Kusmartseva, Dept. of Physics, University of Loughborough.
- đ Date & Time: Wednesday 03 December 2014, 11:15 - 12:15
- đ Venue: Mott Seminar Room (531), Cavendish Laboratory, Department of Physics
Abstract
B20 transition metal compound MnSi presents a model system to study weak itinerant ferromagnetism. The competition of various energy scales in such a system leads to the formation of a unique helimagnetic order. MnSi undergoes a transition into helical magnetic state at temperatures below TN = 30K. The application of a magnetic field has already produced some intriguing results in the discovery of novel magnetic dynamical states and magnetic transport phenomena.
In this work we present a high-pressure study of the thermal transport properties on single crystal MnSi. In particular, the results for the thermopower and electrical resistivity are presented over a broad range of pressures up to 100kbar. The findings are discussed and compared to chemical doping studies in FexMn1-xSi within the framework of spin-fluctuations.
Series This talk is part of the Quantum Matter Seminar series.
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