{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T04:40:34Z","timestamp":1793508034708,"version":"4.5.0"},"reference-count":36,"publisher":"National Academy of Sciences","issue":"11","license":[{"start":{"date-parts":[[2024,3,8]],"date-time":"2024-03-08T00:00:00Z","timestamp":1709856000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"name":"NSF MRSEC","award":["DMR-1720595"],"award-info":[{"award-number":["DMR-1720595"]}]},{"name":"Robert A. Welch","award":["F-2092-20220331"],"award-info":[{"award-number":["F-2092-20220331"]}]},{"name":"The Major Research Instrumentation (MRI) program","award":["DMR-2019130"],"award-info":[{"award-number":["DMR-2019130"]}]},{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["DMR-2104036"],"award-info":[{"award-number":["DMR-2104036"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Science Foundation,","award":["DMR-316 2114825"],"award-info":[{"award-number":["DMR-316 2114825"]}]},{"name":"National Science Foundation,","award":["DMR-2308817"],"award-info":[{"award-number":["DMR-2308817"]}]}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2024,3,12]]},"abstract":"<jats:p>\n                    The interplay of charge, spin, lattice, and orbital degrees of freedom in correlated materials often leads to rich and exotic properties. Recent studies have brought new perspectives to bosonic collective excitations in correlated materials. For example, inelastic neutron scattering experiments revealed non-trivial band topology for magnons and spin\u2013orbit excitons (SOEs) in a quantum magnet CoTiO\n                    <jats:sub>3<\/jats:sub>\n                    (CTO). Here, we report phonon properties resulting from a combination of strong spin\u2013orbit coupling, large crystal field splitting, and trigonal distortion in CTO. Specifically, the interaction between SOEs and phonons endows chirality to two\n                    <jats:inline-formula>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\" overflow=\"scroll\">\n                        <mml:msub>\n                          <mml:mi>E<\/mml:mi>\n                          <mml:mi>g<\/mml:mi>\n                        <\/mml:msub>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    phonon modes and leads to large phonon magnetic moments observed in magneto-Raman spectra. The remarkably strong magneto-phononic effect originates from the hybridization of SOEs and phonons due to their close energy proximity. While chiral phonons have been associated with electronic topology in some materials, our work suggests opportunities may arise by exploring chiral phonons coupled to topological bosons.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2304360121","type":"journal-article","created":{"date-parts":[[2024,3,8]],"date-time":"2024-03-08T13:54:00Z","timestamp":1709906040000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":40,"title":["Spin\u2013orbit exciton\u2013induced phonon chirality in a quantum magnet"],"prefix":"10.1073","volume":"121","author":[{"given":"David","family":"Lujan","sequence":"first","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9272-1133","authenticated-orcid":false,"given":"Jeongheon","family":"Choe","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Swati","family":"Chaudhary","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Department of Physics, Northeastern University, Boston, MA 02115"},{"name":"Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaihua","family":"Ye","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cynthia","family":"Nnokwe","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8929-6546","authenticated-orcid":false,"given":"Martin","family":"Rodriguez-Vega","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Department of Physics, Northeastern University, Boston, MA 02115"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaming","family":"He","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8982-4601","authenticated-orcid":false,"given":"Frank Y.","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. Nathan","family":"Nunley","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8131-9974","authenticated-orcid":false,"given":"Edoardo","family":"Baldini","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianshi","family":"Zhou","sequence":"additional","affiliation":[{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"},{"name":"Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9477-0804","authenticated-orcid":false,"given":"Gregory A.","family":"Fiete","sequence":"additional","affiliation":[{"name":"Department of Physics, Northeastern University, Boston, MA 02115"},{"name":"Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2368-7269","authenticated-orcid":false,"given":"Rui","family":"He","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2279-3078","authenticated-orcid":false,"given":"Xiaoqin","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Physics, Center of Complex Quantum Systems, The University of Texas at Austin, Austin, TX 78712"},{"name":"Center for Dynamics and Control of Materials, The University of Texas at Austin, Austin, TX 78712"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2024,3,8]]},"reference":[{"key":"e_1_3_4_1_2","first-page":"323","article-title":"Optical phonons of rare-earth halides in a magnetic field","volume":"26","author":"Thalmeier P.","year":"1977","unstructured":"P. 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