Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3
Abstract
The experimental realization of magnetic skyrmion crystals in centrosymmetric materials has been driven by theoretical understanding of how a delicate balance of anisotropy and frustration can stabilize topological spin structures in applied magnetic fields. Recently, the centrosymmetric material Gd2PdSi3 was shown to host a field-induced skyrmion crystal, but the skyrmion stabilization mechanism remains unclear. Here, we employ neutron-scattering measurements on an isotopically enriched polycrystalline Gd2PdSi3 sample to quantify the interactions that drive skyrmion formation. Our analysis reveals spatially extended interactions in triangular planes, and large ferromagnetic interplanar magnetic interactions that are modulated by the Pd/Si superstructure. The skyrmion crystal emerges from a zero-field helical magnetic order with magnetic moments perpendicular to the magnetic propagation vector, indicating that the magnetic dipolar interaction plays a significant role. To conclude, our experimental results establish an interaction space that can promote skyrmion formation, facilitating identification and design of centrosymmetric skyrmion materials.
- Authors:
-
[1];
[2];
[1];
[1];
[1];
[1];
[1]
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Savannah River National Laboratory (SRNL), Aiken, SC (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1890340
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 129; Journal Issue: 13; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Paddison, Joseph A. M., Rai, Binod K., May, Andrew F., Calder, Stuart A., Stone, Matthew B., Frontzek, Matthias D., and Christianson, Andrew D. Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3. United States: N. p., 2022.
Web. doi:10.1103/physrevlett.129.137202.
Paddison, Joseph A. M., Rai, Binod K., May, Andrew F., Calder, Stuart A., Stone, Matthew B., Frontzek, Matthias D., & Christianson, Andrew D. Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3. United States. https://doi.org/10.1103/physrevlett.129.137202
Paddison, Joseph A. M., Rai, Binod K., May, Andrew F., Calder, Stuart A., Stone, Matthew B., Frontzek, Matthias D., and Christianson, Andrew D. Fri .
"Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3". United States. https://doi.org/10.1103/physrevlett.129.137202. https://www.osti.gov/servlets/purl/1890340.
@article{osti_1890340,
title = {Magnetic Interactions of the Centrosymmetric Skyrmion Material Gd2PdSi3},
author = {Paddison, Joseph A. M. and Rai, Binod K. and May, Andrew F. and Calder, Stuart A. and Stone, Matthew B. and Frontzek, Matthias D. and Christianson, Andrew D.},
abstractNote = {The experimental realization of magnetic skyrmion crystals in centrosymmetric materials has been driven by theoretical understanding of how a delicate balance of anisotropy and frustration can stabilize topological spin structures in applied magnetic fields. Recently, the centrosymmetric material Gd2PdSi3 was shown to host a field-induced skyrmion crystal, but the skyrmion stabilization mechanism remains unclear. Here, we employ neutron-scattering measurements on an isotopically enriched polycrystalline Gd2PdSi3 sample to quantify the interactions that drive skyrmion formation. Our analysis reveals spatially extended interactions in triangular planes, and large ferromagnetic interplanar magnetic interactions that are modulated by the Pd/Si superstructure. The skyrmion crystal emerges from a zero-field helical magnetic order with magnetic moments perpendicular to the magnetic propagation vector, indicating that the magnetic dipolar interaction plays a significant role. To conclude, our experimental results establish an interaction space that can promote skyrmion formation, facilitating identification and design of centrosymmetric skyrmion materials.},
doi = {10.1103/physrevlett.129.137202},
journal = {Physical Review Letters},
number = 13,
volume = 129,
place = {United States},
year = {Fri Sep 23 00:00:00 EDT 2022},
month = {Fri Sep 23 00:00:00 EDT 2022}
}
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