Speaker
Loghman Jamilpanah
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600)
Description
The coexistence of two skyrmion types in a single system is highly relevant for future racetrack memory devices using such solitons. Here, we demonstrate a metallic ferromagnetic/ferrimagnetic (FM/FI) bi-layer system in which two skyrmion types are successfully stabilized at room temperature. This system has a simpler structure compared to the previous demonstration of the same observation in a FM/FI/FM trilayer. We show also how the two skyrmion types can be tuned by changing the magnetic properties of the FI. The simpler structure together with the FI control layer provide the opportunity for subsequent local control of the skyrmion type and pave the way for device implementation.
Author
Loghman Jamilpanah
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600)
Co-authors
Dr
Braun Braun
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland)
Prof.
Hans Josef Hug
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland and Department of Physics, University of Basel, Basel CH-4056, Switzerland)
Dr
Andrada-Oana Mandru
(Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland)
