Anisotropic spin stripe domains in bilayer La3Ni2O7
Abstract The discovery of superconductivity in La3Ni2O7 under pressure has motivated the investigation of a parent spin density wave (SDW) state, which could provide the underlying pairing interaction. Here, we employ resonant soft x-ray scattering and polarimetry on thin films of bilayer La3Ni2O7 t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-61653-w |
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| author | Naman K. Gupta Rantong Gong Yi Wu Mingu Kang Christopher T. Parzyck Benjamin Z. Gregory Noah Costa Ronny Sutarto Suchismita Sarker Andrej Singer Darrell G. Schlom Kyle M. Shen David G. Hawthorn |
| author_facet | Naman K. Gupta Rantong Gong Yi Wu Mingu Kang Christopher T. Parzyck Benjamin Z. Gregory Noah Costa Ronny Sutarto Suchismita Sarker Andrej Singer Darrell G. Schlom Kyle M. Shen David G. Hawthorn |
| author_sort | Naman K. Gupta |
| collection | DOAJ |
| description | Abstract The discovery of superconductivity in La3Ni2O7 under pressure has motivated the investigation of a parent spin density wave (SDW) state, which could provide the underlying pairing interaction. Here, we employ resonant soft x-ray scattering and polarimetry on thin films of bilayer La3Ni2O7 to determine that the magnetic structure of the SDW forms unidirectional diagonal spin stripes with moments lying within the NiO2 plane and perpendicular to Q SDW, but without evidence of the strong charge disproportionation typically associated with other nickelates. These stripes form anisotropic domains with shorter correlation lengths perpendicular versus parallel to Q SDW, revealing nanoscale rotational and translational symmetry breaking analogous to the cuprate and Fe-based superconductors, with possible Bloch-like antiferromagnetic domain walls separating orthogonal domains. |
| format | Article |
| id | doaj-art-e21911fb78f54d9aa30571a14489ff5d |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-e21911fb78f54d9aa30571a14489ff5d2025-08-20T03:46:25ZengNature PortfolioNature Communications2041-17232025-07-011611910.1038/s41467-025-61653-wAnisotropic spin stripe domains in bilayer La3Ni2O7Naman K. Gupta0Rantong Gong1Yi Wu2Mingu Kang3Christopher T. Parzyck4Benjamin Z. Gregory5Noah Costa6Ronny Sutarto7Suchismita Sarker8Andrej Singer9Darrell G. Schlom10Kyle M. Shen11David G. Hawthorn12Department of Physics and Astronomy, University of WaterlooDepartment of Physics and Astronomy, University of WaterlooLaboratory of Atomic and Solid State Physics, Department of Physics, Cornell UniversityLaboratory of Atomic and Solid State Physics, Department of Physics, Cornell UniversityLaboratory of Atomic and Solid State Physics, Department of Physics, Cornell UniversityLaboratory of Atomic and Solid State Physics, Department of Physics, Cornell UniversityDepartment of Physics and Astronomy, University of WaterlooCanadian Light SourceCornell High Energy Synchrotron Source, Cornell UniversityDepartment of Materials Science and Engineering, Cornell UniversityDepartment of Materials Science and Engineering, Cornell UniversityLaboratory of Atomic and Solid State Physics, Department of Physics, Cornell UniversityDepartment of Physics and Astronomy, University of WaterlooAbstract The discovery of superconductivity in La3Ni2O7 under pressure has motivated the investigation of a parent spin density wave (SDW) state, which could provide the underlying pairing interaction. Here, we employ resonant soft x-ray scattering and polarimetry on thin films of bilayer La3Ni2O7 to determine that the magnetic structure of the SDW forms unidirectional diagonal spin stripes with moments lying within the NiO2 plane and perpendicular to Q SDW, but without evidence of the strong charge disproportionation typically associated with other nickelates. These stripes form anisotropic domains with shorter correlation lengths perpendicular versus parallel to Q SDW, revealing nanoscale rotational and translational symmetry breaking analogous to the cuprate and Fe-based superconductors, with possible Bloch-like antiferromagnetic domain walls separating orthogonal domains.https://doi.org/10.1038/s41467-025-61653-w |
| spellingShingle | Naman K. Gupta Rantong Gong Yi Wu Mingu Kang Christopher T. Parzyck Benjamin Z. Gregory Noah Costa Ronny Sutarto Suchismita Sarker Andrej Singer Darrell G. Schlom Kyle M. Shen David G. Hawthorn Anisotropic spin stripe domains in bilayer La3Ni2O7 Nature Communications |
| title | Anisotropic spin stripe domains in bilayer La3Ni2O7 |
| title_full | Anisotropic spin stripe domains in bilayer La3Ni2O7 |
| title_fullStr | Anisotropic spin stripe domains in bilayer La3Ni2O7 |
| title_full_unstemmed | Anisotropic spin stripe domains in bilayer La3Ni2O7 |
| title_short | Anisotropic spin stripe domains in bilayer La3Ni2O7 |
| title_sort | anisotropic spin stripe domains in bilayer la3ni2o7 |
| url | https://doi.org/10.1038/s41467-025-61653-w |
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