{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T08:01:51Z","timestamp":1793347311869,"version":"4.5.0"},"reference-count":49,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"6823","license":[{"start":{"date-parts":[[2027,10,29]],"date-time":"2027-10-29T00:00:00Z","timestamp":1824768000000},"content-version":"vor","delay-in-days":365,"URL":"https:\/\/www.science.org\/content\/page\/science-licenses-journal-article-reuse"}],"funder":[{"DOI":"10.13039\/100000015","name":"U.S. Department of Energy","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000015","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000183","name":"Army Research Office","doi-asserted-by":"publisher","award":["W911NF- 22-2-0173"],"award-info":[{"award-number":["W911NF- 22-2-0173"]}],"id":[{"id":"10.13039\/100000183","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001671","name":"European Synchrotron Radiation Facility","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001671","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Munich Quantum Valley"}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Science"],"published-print":{"date-parts":[[2026,10,29]]},"abstract":"<jats:p>\n                    Altermagnetism has been recognized as a magnetic phase that bridges the properties of ferro- and antiferromagnetism. The momentum-dependent spin splitting observed in these materials reflects their distinctive symmetry characteristics, which also establish the conditions for chiral magnons to emerge. Here we provide direct experimental evidence for a chiral magnon in the altermagnetic candidate manganese telluride (MnTe) revealed by circular-dichroism resonant inelastic x-ray scattering. This mode, which we term chiral altermagnon, exhibits a distinct momentum dependence of its spin polarization consistent with the altermagnetic\n                    <jats:italic toggle=\"yes\">g<\/jats:italic>\n                    -wave symmetry of MnTe. Our polarization-resolved data corroborate the existence of a discrete class of magnetic excitations, demonstrating how altermagnetic order shapes spin dynamics and paving the way for advances in spintronic and quantum technologies.\n                  <\/jats:p>","DOI":"10.1126\/science.adv3196","type":"journal-article","created":{"date-parts":[[2026,10,29]],"date-time":"2026-10-29T18:00:52Z","timestamp":1793296852000},"page":"541-543","update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":1,"title":["Chiral altermagnon in MnTe"],"prefix":"10.1126","volume":"394","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7327-7789","authenticated-orcid":true,"given":"Daniel","family":"Jost","sequence":"first","affiliation":[{"name":"Stanford Institute for Material and Energy Science (SIMES), SLAC National Accelerator Laboratory, Menlo Park, CA, USA."},{"name":"Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-5094-379X","authenticated-orcid":true,"given":"Resham Babu","family":"Regmi","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN, USA."},{"name":"Stravropoulos Center for Complex Quantum Matter, University of Notre Dame, Notre Dame, IN, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8141-2140","authenticated-orcid":true,"given":"Eder G.","family":"Lomeli","sequence":"additional","affiliation":[{"name":"Stanford Institute for Material and Energy Science (SIMES), SLAC National Accelerator Laboratory, Menlo Park, CA, USA."},{"name":"Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5003-9980","authenticated-orcid":true,"given":"Samuel","family":"Sahel-Schackis","sequence":"additional","affiliation":[{"name":"Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."},{"name":"Department of Physics, Stanford University, Stanford, CA, USA."},{"name":"Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2071-7263","authenticated-orcid":true,"given":"Monika","family":"Scheufele","sequence":"additional","affiliation":[{"name":"Walther-Meissner-Institute, Bayerische Akademie der Wissenschaften, Garching, Germany."},{"name":"Technical University of Munich, TUM School of Natural Sciences, Physics Department, Garching, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-4038-0206","authenticated-orcid":true,"given":"Marcel","family":"Neuhaus","sequence":"additional","affiliation":[{"name":"Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8179-6295","authenticated-orcid":true,"given":"Rachel","family":"Nickel","sequence":"additional","affiliation":[{"name":"European Synchrotron Radiation Facility, Grenoble Cedex, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6798-2286","authenticated-orcid":true,"given":"Flora","family":"Yakhou","sequence":"additional","affiliation":[{"name":"European Synchrotron Radiation Facility, Grenoble Cedex, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3044-7957","authenticated-orcid":true,"given":"Kurt","family":"Kummer","sequence":"additional","affiliation":[{"name":"European Synchrotron Radiation Facility, Grenoble Cedex, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1342-9530","authenticated-orcid":true,"given":"Nicholas B.","family":"Brookes","sequence":"additional","affiliation":[{"name":"European Synchrotron Radiation Facility, Grenoble Cedex, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2121-2585","authenticated-orcid":true,"given":"Lingjia","family":"Shen","sequence":"additional","affiliation":[{"name":"Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1563-1190","authenticated-orcid":true,"given":"Georgi L.","family":"Dakovski","sequence":"additional","affiliation":[{"name":"Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8474-4968","authenticated-orcid":true,"given":"Nirmal J.","family":"Ghimire","sequence":"additional","affiliation":[{"name":"Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN, USA."},{"name":"Stravropoulos Center for Complex Quantum Matter, University of Notre Dame, Notre Dame, IN, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0985-2341","authenticated-orcid":true,"given":"Stephan","family":"Gepr\u00e4gs","sequence":"additional","affiliation":[{"name":"Walther-Meissner-Institute, Bayerische Akademie 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