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Chiral Ferrimagnetism in Amorphous Thin Films
Experimental evidence of chiral ferrimagnetism in amorphous Gd-Co films
Significance and Impact
The work paves the way towards a generalized understanding of (interfacial) vector spin exchange-driven chirality selection in complex multi-component systems, relevant to novel concepts of spintronics.
- X-ray micro-spectroscopy and high-resolution Lorentz transmission electron microscopy reveal chiral ferrimagnetic domain walls whose type depends on the rare-earth composition / saturation magnetization, capping, and film thickness
- Magnetic moments of transition metal and rare-earth element exhibit distinct dependence, i.e. on capping and film thickness, resp.
- Results suggest potential temperature control of intrinsic domain wall properties
R. Streubel, C.-H. Lambert, N. Kent, P. Ercius, A.T. N'Diaye, C. Ophus, S. Salahuddin, P. Fischer Advanced Materials 1800199 (2018) doi: 10.1002/adma.201800199.