How defects make permanent magnets even more efficient

TU researchers contribute to a publication in Nature Communications

2026/01/28

a) Microstructure of the magnet obtained by electron microscopy. (b) Optical Kerr microscopy image, the black areas correspond to the demagnetized part of the magnet. (c,d,e) High-resolution transmission electron microscopy images showing nanostructure of the magnet. (f) Electron holography, different colours correspond to different orientation of magnetization.

An international research team within the DFG Collaborative Research Center SFB/TRR 270 “HoMMage”, has published new findings on more efficient permanent magnets in the prestigious journal Nature Communications.

Fin out more in thenews article by TU Darmstadt.

Publication:

S. Giron, N. Polin, E. Adabifiroozjaei, Y. Yang, A. Kovács, T. P. Almeida, D. Ohmer, K. Üstüner, A. Saxena, M. Katter, F. Maccari, I. A. Radulov, C. Freysoldt, R. E. Dunin-Borkowski, M. Farle, K. Durst, H. Zhang, L. Alff, K. Ollefs, B.-X. Xu, O. Gutfleisch, L. Molina-Luna, B. Gault, K. P. Skokov
Identifying grain boundary and intragranular pinning centres in Sm2(Co,Fe,Cu,Zr)17 permanent magnets to guide performance optimisation
Nature Communications 16, 11335 (2025).
DOI: 10.1038/s41467-025-67773-7