Magnetic frustration and non-collinear textures in layered Gd magnets
Abstract
Using scale-bridging simulations based on electronic structure theory and atomistic spin dynamics, we investigate the magnetic properties of skyrmionic GdRu2Si2 and GdRu2Ge2 layered rare-earth magnets and similar Gd-based compounds (GdAu2Si2, GdAu2Ge2, GdAg2Si2 and GdAg2Ge2). By studying the trends across this structural family, we confirm the importance of magnetic frustration and dipolar interactions for the stability of non-collinear and skyrmion phases. Furthermore, our calculations predict promising opportunities for chemical tuning of these magnets in terms of the balance between various exchange interactions and the character of the magnetic anisotropy. These changes lead to the formation of new types of skyrmions that are stable in a wide range of applied external magnetic field. In particular, we propose partial alkali-metal substitution of Gd in GdRu2Si2 leading to GdKRu4Si4, GdRbRu4Si4, GdCsRu4Si4 as well as GdYRu4Si4 compounds, and suggest that it is likely to result in an ordered layered structure, similarly to previously reported iron pnictides like CaKFe4As4.
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BibTeX
@misc{borisov2026magnetic,
title = {{Magnetic frustration and non-collinear textures in layered Gd magnets}},
author = {Vladislav Borisov and Rohit Pathak and Sagar Sarkar and Anna Delin and Olle Eriksson},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.00141},
eprint = {2609.00141},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.00141},
}
RIS
TY - UNPB
TI - Magnetic frustration and non-collinear textures in layered Gd magnets
AU - Vladislav Borisov
AU - Rohit Pathak
AU - Sagar Sarkar
AU - Anna Delin
AU - Olle Eriksson
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.00141
UR - https://arxiv.org/abs/2609.00141
AB - Using scale-bridging simulations based on electronic structure theory and atomistic spin dynamics, we investigate the magnetic properties of skyrmionic GdRu_2Si_2 and GdRu_2Ge_2 layered rare-earth magnets and similar Gd-based compounds (GdAu_2Si_2, GdAu_2Ge_2, GdAg_2Si_2 and GdAg_2Ge_2). By studying the trends across this structural family, we confirm the importance of magnetic frustration and dipolar interactions for the stability of non-collinear and skyrmion phases. Furthermore, our calculations predict promising opportunities for chemical tuning of these magnets in terms of the balance between various exchange interactions and the character of the magnetic anisotropy. These changes lead to the formation of new types of skyrmions that are stable in a wide range of applied external magnetic field. In particular, we propose partial alkali-metal substitution of Gd in GdRu_2Si_2 leading to GdKRu_4Si_4, GdRbRu_4Si_4, GdCsRu_4Si_4 as well as GdYRu_4Si_4 compounds, and suggest that it is likely to result in an ordered layered structure, similarly to previously reported iron pnictides like CaKFe_4As_4.
ER -