{"article_type":"original","scopus_import":"1","article_number":"214443","publication_status":"published","oa":1,"publisher":"American Physical Society","doi":"10.1103/bdd1-b8ys","date_created":"2026-01-04T23:01:34Z","arxiv":1,"intvolume":"       112","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"quality_controlled":"1","abstract":[{"text":"Cavity-magnon polaritons are hybrid excitations from the interaction between cavity photons and magnons, the quanta of collective spin oscillations. Along with the tunability of the magnon-photon coupling strength, fast information transfer and conversion speed are desired in hybrid devices. This can be achieved utilizing the propagating nature of spin waves with nonzero momentum for their ultrafast time dynamics and reduced ohmic dissipation. Antiferromagnets are particularly interesting as hosts for magnons since stray-field interactions are minimized and they support multiple modes with distinctive magnetic-field behavior across the phase diagram. Chromium trichloride (CrCl3) is a van der Waals layered antiferromagnet having a strong easy-plane anisotropy and a weak in-plane easy-axis anisotropy. Despite some magnetic resonance studies, the impact of magnetic reorientation of spins in CrCl3 on the cavity-magnon-polariton interaction strength as a function of magnetic field remains largely unexplored. In this study, we investigate the coupling between magnons in CrCl3 and photons in a coplanar waveguide resonator as a function of magnetic field. In particular, we find that the magnon-photon coupling strength varies nonmonotonically and distinctly with the magnetic field for the acoustic and the optical magnons, which can be utilized to tune the magnon-photon coupling strength using an external magnetic field as a knob. We find the signature of spin-flop transition in the two harmonics of the cavity due to a stronger dispersive coupling between optical magnons and cavity photons at lower fields. Additionally, we find standing modes formed by spin waves with nonzero momentum associated with the two hybrid magnons when the external field is applied at an angle with the crystal plane. These modes do not undergo substantial coupling with the cavity mode unlike the antiferromagnetic modes and can be used as low-loss propagation channels in hybrid devices.","lang":"eng"}],"language":[{"iso":"eng"}],"_id":"20927","title":"Cavity based sensing of antiferromagnetic canting and nonzero-momentum spin waves in a van der Waals cavity-magnon-polariton system","related_material":{"record":[{"status":"public","relation":"research_data","id":"20940"}]},"citation":{"mla":"Mandal, Supriya, et al. “Cavity Based Sensing of Antiferromagnetic Canting and Nonzero-Momentum Spin Waves in a van Der Waals Cavity-Magnon-Polariton System.” <i>Physical Review B</i>, vol. 112, no. 21, 214443, American Physical Society, 2025, doi:<a href=\"https://doi.org/10.1103/bdd1-b8ys\">10.1103/bdd1-b8ys</a>.","ieee":"S. Mandal <i>et al.</i>, “Cavity based sensing of antiferromagnetic canting and nonzero-momentum spin waves in a van der Waals cavity-magnon-polariton system,” <i>Physical Review B</i>, vol. 112, no. 21. American Physical Society, 2025.","ista":"Mandal S, Maji K, Kapoor L, Sasmal S, Manni S, Jesudasan J, Raychaudhuri P, Thamizhavel A, Deshmukh MM. 2025. Cavity based sensing of antiferromagnetic canting and nonzero-momentum spin waves in a van der Waals cavity-magnon-polariton system. Physical Review B. 112(21), 214443.","ama":"Mandal S, Maji K, Kapoor L, et al. Cavity based sensing of antiferromagnetic canting and nonzero-momentum spin waves in a van der Waals cavity-magnon-polariton system. <i>Physical Review B</i>. 2025;112(21). doi:<a href=\"https://doi.org/10.1103/bdd1-b8ys\">10.1103/bdd1-b8ys</a>","short":"S. Mandal, K. Maji, L. Kapoor, S. Sasmal, S. Manni, J. Jesudasan, P. Raychaudhuri, A. Thamizhavel, M.M. Deshmukh, Physical Review B 112 (2025).","chicago":"Mandal, Supriya, Krishnendu Maji, Lucky Kapoor, Souvik Sasmal, Soham Manni, John Jesudasan, Pratap Raychaudhuri, Arumugam Thamizhavel, and Mandar M. Deshmukh. “Cavity Based Sensing of Antiferromagnetic Canting and Nonzero-Momentum Spin Waves in a van Der Waals Cavity-Magnon-Polariton System.” <i>Physical Review B</i>. American Physical Society, 2025. <a href=\"https://doi.org/10.1103/bdd1-b8ys\">https://doi.org/10.1103/bdd1-b8ys</a>.","apa":"Mandal, S., Maji, K., Kapoor, L., Sasmal, S., Manni, S., Jesudasan, J., … Deshmukh, M. M. (2025). Cavity based sensing of antiferromagnetic canting and nonzero-momentum spin waves in a van der Waals cavity-magnon-polariton system. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/bdd1-b8ys\">https://doi.org/10.1103/bdd1-b8ys</a>"},"oa_version":"Preprint","department":[{"_id":"MaIb"},{"_id":"JoFi"}],"date_published":"2025-12-19T00:00:00Z","type":"journal_article","issue":"21","OA_type":"green","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2512.05236"}],"status":"public","article_processing_charge":"No","date_updated":"2026-01-05T10:07:04Z","volume":112,"publication":"Physical Review B","day":"19","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["2512.05236"]},"year":"2025","OA_place":"repository","month":"12","acknowledgement":"We thank R. Vijayaraghavan, V. Singh, A. Kamra, A. Barman, M. Patankar, S. Kundu, S. Hazra, S. Sahu, A. Riswadkar, A. Bhattacharjee, and S. Das for helpful discussions and experimental assistance. We acknowledge the Swarnajayanti Fellowship of the Department of Science and Technology (for M.M.D.), DST Nanomission Grant No. SR/NM/NS-45/2016, SERB SUPRA Grant No. SPR/2019/001247, ONRG Grant No. N62909–18-1–2058, and the Department of Atomic Energy of the Government of India Grant No. 12-R&D-TFR5.10–0100 for support.","author":[{"last_name":"Mandal","full_name":"Mandal, Supriya","first_name":"Supriya"},{"full_name":"Maji, Krishnendu","first_name":"Krishnendu","last_name":"Maji","id":"76bc9e9f-ba0b-11ee-8184-90edabd17a58"},{"id":"84b9700b-15b2-11ec-abd3-831089e67615","last_name":"Kapoor","full_name":"Kapoor, Lucky","first_name":"Lucky","orcid":"0000-0001-8319-2148"},{"last_name":"Sasmal","full_name":"Sasmal, Souvik","first_name":"Souvik"},{"first_name":"Soham","full_name":"Manni, Soham","last_name":"Manni"},{"last_name":"Jesudasan","first_name":"John","full_name":"Jesudasan, John"},{"first_name":"Pratap","full_name":"Raychaudhuri, Pratap","last_name":"Raychaudhuri"},{"first_name":"Arumugam","full_name":"Thamizhavel, Arumugam","last_name":"Thamizhavel"},{"last_name":"Deshmukh","first_name":"Mandar M.","full_name":"Deshmukh, Mandar M."}]}