Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet $GdTe_{3}$
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866911897569198080 |
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| author | Raghavan, Arjun Romanelli, Marisa May-Mann, Julian Aishwarya, Anuva Aggarwal, Leena Singh, Anisha G. Bachmann, Maja D. Schoop, Leslie M. Fradkin, Eduardo Fisher, Ian R. Madhavan, Vidya |
| author_facet | Raghavan, Arjun Romanelli, Marisa May-Mann, Julian Aishwarya, Anuva Aggarwal, Leena Singh, Anisha G. Bachmann, Maja D. Schoop, Leslie M. Fradkin, Eduardo Fisher, Ian R. Madhavan, Vidya |
| contents | $GdTe_{3}$ is a layered antiferromagnet which has attracted attention due to its exceptionally high mobility, distinctive unidirectional incommensurate charge density wave (CDW), superconductivity under pressure, and a cascade of magnetic transitions between 7 and 12 K, with as yet unknown order parameters. Here, we use spin-polarized scanning tunneling microscopy to directly image the charge and magnetic orders in $GdTe_{3}$. Below 7 K, we find a striped antiferromagnetic phase with twice the periodicity of the Gd lattice and perpendicular to the CDW. As we heat the sample, we discover a spin density wave with the same periodicity as the CDW between 7 and 12 K; the viability of this phase is supported by our Landau free energy model. Our work reveals the order parameters of the magnetic phases in $GdTe_{3}$ and shows how the interplay between charge and spin can generate a cascade of magnetic orders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_15691 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet $GdTe_{3}$ Raghavan, Arjun Romanelli, Marisa May-Mann, Julian Aishwarya, Anuva Aggarwal, Leena Singh, Anisha G. Bachmann, Maja D. Schoop, Leslie M. Fradkin, Eduardo Fisher, Ian R. Madhavan, Vidya Strongly Correlated Electrons $GdTe_{3}$ is a layered antiferromagnet which has attracted attention due to its exceptionally high mobility, distinctive unidirectional incommensurate charge density wave (CDW), superconductivity under pressure, and a cascade of magnetic transitions between 7 and 12 K, with as yet unknown order parameters. Here, we use spin-polarized scanning tunneling microscopy to directly image the charge and magnetic orders in $GdTe_{3}$. Below 7 K, we find a striped antiferromagnetic phase with twice the periodicity of the Gd lattice and perpendicular to the CDW. As we heat the sample, we discover a spin density wave with the same periodicity as the CDW between 7 and 12 K; the viability of this phase is supported by our Landau free energy model. Our work reveals the order parameters of the magnetic phases in $GdTe_{3}$ and shows how the interplay between charge and spin can generate a cascade of magnetic orders. |
| title | Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet $GdTe_{3}$ |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2308.15691 |