Berlin 2018 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 38: Magnetocaloric Effects (joint session MA/TT)

TT 38.11: Vortrag

Dienstag, 13. März 2018, 12:15–12:30, EB 407

A tool for detecting complex magnetic configurations — •Alexander Fernández Scarioni¹, David Schroeter², Xiukun Hu¹, Sibylle Sievers¹, Dirk Menzel², Stefan Süllow², and Hans W. Schumacher¹ — ¹Physikalish-Technische Bundesanstalt (PTB), Braunschweig, Germany — ²Institut für Physik der Kondensierten Materie, TU Braunschweig, Germany

The anomalous Nernst effect (ANE) is a simple and powerful tool to detect the average magnetization in a single nanowire. Using this simple thermoelectrical measurement one can precisely track the position and motion of a single Domain Wall in a metallic nanowire with perpendicular magnetization anisotropy with a resolution below 20 nm [1]. This makes the ANE a candidate for detecting the magnetization in nanowires made of complex materials such as the ones that show a Dzyaloshinskii-Moriya Interaction (DMI), even also single skyrmions in nanowires. We are going to show thermoelectric ANE measurements on a nanowire with DMI were we can identify the different components of the magnetization.

[1] P. Krzysteczko et al., Phys. Rev. B. 95, 220410(R) (2017)