Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system
Abstract Systems with pronounced spin anisotropy are pivotal in advancing magnetization switching and spin-wave generation mechanisms that are fundamental to spintronic technologies. Quasi-van der Waals ferromagnets like Cr1+δ Te2 represent seminal materials in this field, renowned for their delicat...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-59266-4 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850154659965042688 |
|---|---|
| author | Chiara Bigi Cyriack Jego Vincent Polewczyk Alessandro De Vita Thomas Jaouen Hulerich C. Tchouekem François Bertran Patrick Le Fèvre Pascal Turban Jean-François Jacquot Jill A. Miwa Oliver J. Clark Anupam Jana Sandeep Kumar Chaluvadi Pasquale Orgiani Mario Cuoco Mats Leandersson Thiagarajan Balasubramanian Thomas Olsen Younghun Hwang Matthieu Jamet Federico Mazzola |
| author_facet | Chiara Bigi Cyriack Jego Vincent Polewczyk Alessandro De Vita Thomas Jaouen Hulerich C. Tchouekem François Bertran Patrick Le Fèvre Pascal Turban Jean-François Jacquot Jill A. Miwa Oliver J. Clark Anupam Jana Sandeep Kumar Chaluvadi Pasquale Orgiani Mario Cuoco Mats Leandersson Thiagarajan Balasubramanian Thomas Olsen Younghun Hwang Matthieu Jamet Federico Mazzola |
| author_sort | Chiara Bigi |
| collection | DOAJ |
| description | Abstract Systems with pronounced spin anisotropy are pivotal in advancing magnetization switching and spin-wave generation mechanisms that are fundamental to spintronic technologies. Quasi-van der Waals ferromagnets like Cr1+δ Te2 represent seminal materials in this field, renowned for their delicate balance between frustrated layered geometries and magnetism. Despite extensive investigation, the nature of their magnetic ground state and the mechanism of spin reorientation under external fields and varying temperatures remain contested. Here, we exploit complementary techniques to reveal a previously overlooked magnetic phase in Cr1+δ Te2 (δ = 0.25 − 0.50), which we term orthogonal-ferromagnetism. This phase consists of atomically sharp single layers of in-plane and out-of-plane maximally canted ferromagnetic blocks, which differs from the stacking of multiple heterostructural elements required for crossed magnetism. Contrary to earlier reports of gradual spin reorientation in CrTe2-based systems, we present evidence for abrupt spin-flop-like transitions. This discovery further highlights Cr1+δ Te2 compounds as promising candidates for spintronic and orbitronic applications, opening new pathways for device engineering. |
| format | Article |
| id | doaj-art-cb5e29ebca584e7a9b0c1f9e67ff83f1 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-cb5e29ebca584e7a9b0c1f9e67ff83f12025-08-20T02:25:13ZengNature PortfolioNature Communications2041-17232025-05-011611810.1038/s41467-025-59266-4Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals systemChiara Bigi0Cyriack Jego1Vincent Polewczyk2Alessandro De Vita3Thomas Jaouen4Hulerich C. Tchouekem5François Bertran6Patrick Le Fèvre7Pascal Turban8Jean-François Jacquot9Jill A. Miwa10Oliver J. Clark11Anupam Jana12Sandeep Kumar Chaluvadi13Pasquale Orgiani14Mario Cuoco15Mats Leandersson16Thiagarajan Balasubramanian17Thomas Olsen18Younghun Hwang19Matthieu Jamet20Federico Mazzola21Synchrotron SOLEILUniv. Grenoble Alpes, CEA, CNRS, IRIG-SPINTECUniv. Grenoble Alpes, CEA, CNRS, IRIG-SPINTECFritz Haber Institut der Max Planck GesellshaftUniv Rennes, IPR Institut de Physique de RennesUniv Rennes, IPR Institut de Physique de RennesSynchrotron SOLEILUniv Rennes, IPR Institut de Physique de RennesUniv Rennes, IPR Institut de Physique de RennesUniv. Grenoble Alpes, CEA, CNRS, IRIG-SYMMESDepartment of Physics and Astronomy, Interdisciplinary Nanoscience Center, Aarhus UniversitySchool of Physics and Astronomy, Monash UniversityCNR-IOM Istituto Officina dei MaterialiCNR-IOM Istituto Officina dei MaterialiCNR-IOM Istituto Officina dei MaterialiCNR-SPIN, c/o Universitá di SalernoMAX IV Laboratory, Lund UniversityMAX IV Laboratory, Lund UniversityCAMD, Computational Atomic-Scale Materials Design, Department of Physics, Technical University of DenmarkElectricity and Electronics and Semiconductor Applications, Ulsan CollegeUniv. Grenoble Alpes, CEA, CNRS, IRIG-SPINTECDepartment of Molecular Sciences and Nanosystems, Ca Foscari University of VeniceAbstract Systems with pronounced spin anisotropy are pivotal in advancing magnetization switching and spin-wave generation mechanisms that are fundamental to spintronic technologies. Quasi-van der Waals ferromagnets like Cr1+δ Te2 represent seminal materials in this field, renowned for their delicate balance between frustrated layered geometries and magnetism. Despite extensive investigation, the nature of their magnetic ground state and the mechanism of spin reorientation under external fields and varying temperatures remain contested. Here, we exploit complementary techniques to reveal a previously overlooked magnetic phase in Cr1+δ Te2 (δ = 0.25 − 0.50), which we term orthogonal-ferromagnetism. This phase consists of atomically sharp single layers of in-plane and out-of-plane maximally canted ferromagnetic blocks, which differs from the stacking of multiple heterostructural elements required for crossed magnetism. Contrary to earlier reports of gradual spin reorientation in CrTe2-based systems, we present evidence for abrupt spin-flop-like transitions. This discovery further highlights Cr1+δ Te2 compounds as promising candidates for spintronic and orbitronic applications, opening new pathways for device engineering.https://doi.org/10.1038/s41467-025-59266-4 |
| spellingShingle | Chiara Bigi Cyriack Jego Vincent Polewczyk Alessandro De Vita Thomas Jaouen Hulerich C. Tchouekem François Bertran Patrick Le Fèvre Pascal Turban Jean-François Jacquot Jill A. Miwa Oliver J. Clark Anupam Jana Sandeep Kumar Chaluvadi Pasquale Orgiani Mario Cuoco Mats Leandersson Thiagarajan Balasubramanian Thomas Olsen Younghun Hwang Matthieu Jamet Federico Mazzola Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system Nature Communications |
| title | Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system |
| title_full | Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system |
| title_fullStr | Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system |
| title_full_unstemmed | Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system |
| title_short | Bilayer orthogonal ferromagnetism in CrTe2-based van der Waals system |
| title_sort | bilayer orthogonal ferromagnetism in crte2 based van der waals system |
| url | https://doi.org/10.1038/s41467-025-59266-4 |
| work_keys_str_mv | AT chiarabigi bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT cyriackjego bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT vincentpolewczyk bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT alessandrodevita bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT thomasjaouen bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT hulerichctchouekem bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT francoisbertran bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT patricklefevre bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT pascalturban bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT jeanfrancoisjacquot bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT jillamiwa bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT oliverjclark bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT anupamjana bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT sandeepkumarchaluvadi bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT pasqualeorgiani bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT mariocuoco bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT matsleandersson bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT thiagarajanbalasubramanian bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT thomasolsen bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT younghunhwang bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT matthieujamet bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem AT federicomazzola bilayerorthogonalferromagnetismincrte2basedvanderwaalssystem |