Berlin 2018 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 10: Skyrmions I (joint session MA/KFM/TT)
MA 10.5: Vortrag
Montag, 12. März 2018, 16:15–16:30, EB 301
Magnetotransport and Hall effect of MnSi thin film under pressure — •David Schroeter1, Stefan Süllow1, Dirk Menzel1, Hiroyuki Hidaka2, Hideto Okuyama2, and Hiroshi Amitsuka2 — 1Institut für Physik der Kondensierten Materie, TU Braunschweig, Germany — 2Graduate School of Science, Hokkaido University Sapporo, Japan
In the recent years thin films of the B20 compound MnSi became subject of great interest, since the magnetic properties of bulk MnSi are modified due to the dimensional reduction and the uniaxial anisotropy with a suspected stabilized skyrmionic phase [1]. In comparison to bulk material MnSi thin film shows an enhanced ordering parameter with ongoing research about the nature of the magnetic order in thin film state [2].
The ordering temperature and critical fields of MnSi decrease with applied hydrostatic pressure, with thin film material recovering bulk values for the transition temperature at precover ≈ 2.3 GPa and a qualitatively similar behavior to bulk MnSi with respect to the ordering temperature above precover [3]. We present magnetotransport and Hall effect measurements on MnSi thin films under applied pressure of up to around 4 GPa and discuss our results concerning the magnetic phase diagram under pressure.
[1] A. B. Butenko et al., Phys. Rev. B 82, 052403 (2010).
[2] M. N. Wilson et al., Phys. Rev. B 86, 144420 (2012).
[3] J. Engelke et al., Phys. Rev. B 89, 144413 (2014).