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Magnetic, Electronic Structure and Micromagnetic Properties of Ferrimagnetic DyCo 3 as a Platform for Ferrimagnetic Skyrmions

Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Hategan, Radu George;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Aldea, Andrei;
ORCID
0009-0006-0046-3795
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Miclea, Razvan Dan;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Hirian, Razvan;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Botiz, Ioan;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Dudric, Roxana;
Affiliation
Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany;(L.R.);(O.H.);(G.S.);(D.R.T.Z.)
Rasabathina, Lokesh;
ORCID
0000-0002-1351-5623
Affiliation
Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany;(L.R.);(O.H.);(G.S.);(D.R.T.Z.)
Hellwig, Olav;
ORCID
0000-0002-2565-9675
Affiliation
Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany;(L.R.);(O.H.);(G.S.);(D.R.T.Z.)
Salvan, Georgeta;
ORCID
0000-0002-8455-4582
Affiliation
Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany;(L.R.);(O.H.);(G.S.);(D.R.T.Z.)
Zahn, Dietrich R. T.;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Tetean, Romulus;
Affiliation
Faculty of Physics, Babeș-Bolyai University, 400084 Cluj-Napoca, Romania;(R.G.H.);(A.A.);(R.D.M.);(R.H.);(I.B.);(R.T.)
Tiusan, Coriolan

We demonstrate tunable ferrimagnetic properties in both bulk and thin film ferrimagnetic DyCo 3 compatible with the hosting of topological magnetic chiral textures, namely skyrmions suitable for integration into spintronic applications with classic, neuromorphic and quantum functionalities. The bulk samples were prepared by arc-melting of stoichiometric mixtures under purified argon atmosphere and the thin films by Ultra-High-Vacuum magnetron sputtering from a stoichiometric target. Magnetometry allows us to extract the main magnetic properties of bulk and thin films: the saturation magnetization, the magnetic anisotropy and their variation with temperature. These results are successfully complemented by band structure ab initio DFT calculations. Based on the critical magnetic parameters extracted from experiments, we performed micromagnetic simulations that reveal the skyrmionic potential of our samples in both continuous thin film and nano-patterned architectures.

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Editor:
Kim, Dong-Joo
Published in:
Nanomaterials  
Vol. 15, No. 8 (15.04.2025)
Volume:
15
No.:
8
Date Issued:
15.04.2025
DOI:
10.3390/nano15080606
Language:
English
Type of Resource:
Text
Keywords:
rare earth–transition metal ferrimagnetic structures; skyrmions; skyrmionic materials; micromagnetism; spintronics; Dzyaloshinskii–Moriya asymmetric exchange
DDC:
610 Medizin und Gesundheit

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