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MA: Fachverband Magnetismus
MA 52: Poster II
MA 52.72: Poster
Thursday, March 15, 2018, 15:00–18:00, Poster C
Current driven domain wall creation in ferromagnetic nano-wires — •Nils Sommer1, Matthias Sitte1, Davi Rohe Rodrigues2, and Karin Everschor-Sitte1 — 1Institute of Physics, Johannes Gutenberg Universität, 55128 Mainz, Germany — 2Department of Physics & Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA
A central topic in spintronics is the manipulation of magnetic textures by currents.
In a recent work, it was predicted that magnetic domain walls can be generated in ferromagnetic nano-wires by means of an electric current once there is an inhomogeneity.
In this work, the focus is on a set-up where the magnetization of the ferromagnetic wire was mainly aligned along the wire. Only the magnetization at one end of the wire was fixed along a perpendicular direction. It has been shown that above a certain threshold current density domain walls are injected into the nano-wire with a period that is controlled by the current strength.
During my Bachelor research, we have analysed the influence of the orientation of the fixed magnetization at the end of the wire. We have shown that while reducing the tilting angle the threshold current above which domain walls are shedded is increasing. Decreasing the tilting angle to zero we were able to recover the ferromagnetic instability.