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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.08524 |
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| _version_ | 1866917325240795136 |
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| author | Tam, Charles C. Schwarz, Sarah Zhang, Xin Chatterjee, Sudipta Lee, Scott B. Scatena, Rebecca Schoop, Leslie M. Wilson, Stephen D. |
| author_facet | Tam, Charles C. Schwarz, Sarah Zhang, Xin Chatterjee, Sudipta Lee, Scott B. Scatena, Rebecca Schoop, Leslie M. Wilson, Stephen D. |
| contents | We characterize the magnetic ground state of the newly synthesized lanthanide intermetallic GdNiSn$_4$ via resonant elastic x-ray scattering measurements. This compound forms distorted square nets of Gd that initially order magnetically below 23 K followed by a lower temperature transition at 16 K. Our scattering data identify the ground state order as a single-$q$ incommensurate, collinear order that slides towards a commensurate wave vector above the 16 K transition. Magnetic symmetry analysis combined with azimuthal dependence resolves the ground state magnetic structure as a moment-modulated spin density wave state with Gd moments oriented parallel to the in-plane a-axis. We discuss connections between the observed magnetic order and electronic properties in this square-net compound. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_08524 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Collinear spin density wave state in distorted square-lattice GdNiSn$_4$ Tam, Charles C. Schwarz, Sarah Zhang, Xin Chatterjee, Sudipta Lee, Scott B. Scatena, Rebecca Schoop, Leslie M. Wilson, Stephen D. Strongly Correlated Electrons We characterize the magnetic ground state of the newly synthesized lanthanide intermetallic GdNiSn$_4$ via resonant elastic x-ray scattering measurements. This compound forms distorted square nets of Gd that initially order magnetically below 23 K followed by a lower temperature transition at 16 K. Our scattering data identify the ground state order as a single-$q$ incommensurate, collinear order that slides towards a commensurate wave vector above the 16 K transition. Magnetic symmetry analysis combined with azimuthal dependence resolves the ground state magnetic structure as a moment-modulated spin density wave state with Gd moments oriented parallel to the in-plane a-axis. We discuss connections between the observed magnetic order and electronic properties in this square-net compound. |
| title | Collinear spin density wave state in distorted square-lattice GdNiSn$_4$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2603.08524 |