{"id":"https://openalex.org/W7206150910","doi":"https://doi.org/10.48550/arxiv.2609.01118","title":"Interfacial orbital torques excite nanoscale terahertz magnons","display_name":"Interfacial orbital torques excite nanoscale terahertz magnons","publication_year":2026,"publication_date":"2026-09-01","ids":{"openalex":"https://openalex.org/W7206150910","doi":"https://doi.org/10.48550/arxiv.2609.01118"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.01118","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.01118","pdf_url":"https://arxiv.org/pdf/2609.01118","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.01118","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5119902068","display_name":"Harshita Devda","orcid":"https://orcid.org/0009-0002-8744-2364","observed_orcids":["https://orcid.org/0009-0002-8744-2364"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Devda, Harshita","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079422222","display_name":"Peter M. Oppeneer","orcid":"https://orcid.org/0000-0002-9069-2631","observed_orcids":["https://orcid.org/0000-0002-9069-2631"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Oppeneer, Peter M.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5128938907","display_name":"Ulrich Nowak","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nowak, Ulrich","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10049","display_name":"Magnetic properties of thin films","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10049","display_name":"Magnetic properties of thin films","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11682","display_name":"Advanced Condensed Matter Physics","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10382","display_name":"Quantum and electron transport phenomena","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/orbital-torque","display_name":"orbital torque","score":0.8629999756813049},{"id":"https://openalex.org/keywords/field-like-torque","display_name":"field-like torque","score":0.7699999809265137},{"id":"https://openalex.org/keywords/magnetic-multilayers","display_name":"magnetic multilayers","score":0.7919999957084656},{"id":"https://openalex.org/keywords/symmetry-engineering","display_name":"symmetry engineering","score":0.47999998927116394},{"id":"https://openalex.org/keywords/atomistic-modeling","display_name":"atomistic modeling","score":0.574999988079071}],"concepts":[{"id":"https://openalex.org/C204382992","wikidata":"https://www.wikidata.org/wiki/Q1377101","display_name":"Magnon","level":3,"score":0.8429999947547913},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.7529000043869019},{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.7080000042915344},{"id":"https://openalex.org/C144171764","wikidata":"https://www.wikidata.org/wiki/Q48103","display_name":"Torque","level":2,"score":0.6847000122070312},{"id":"https://openalex.org/C83581075","wikidata":"https://www.wikidata.org/wiki/Q1361503","display_name":"Excitation","level":2,"score":0.6780999898910522},{"id":"https://openalex.org/C82217956","wikidata":"https://www.wikidata.org/wiki/Q184207","display_name":"Ferromagnetism","level":2,"score":0.6448000073432922},{"id":"https://openalex.org/C44221107","wikidata":"https://www.wikidata.org/wiki/Q4431229","display_name":"Spin wave","level":3,"score":0.4681999981403351},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.453900009393692},{"id":"https://openalex.org/C42704618","wikidata":"https://www.wikidata.org/wiki/Q910917","display_name":"Spin (aerodynamics)","level":2,"score":0.44609999656677246},{"id":"https://openalex.org/C2778381111","wikidata":"https://www.wikidata.org/wiki/Q6731632","display_name":"Magnetization dynamics","level":4,"score":0.4228000044822693},{"id":"https://openalex.org/C32546565","wikidata":"https://www.wikidata.org/wiki/Q856711","display_name":"Magnetization","level":3,"score":0.39660000801086426},{"id":"https://openalex.org/C199631012","wikidata":"https://www.wikidata.org/wiki/Q205034","display_name":"Perpendicular","level":2,"score":0.3750999867916107},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3666999936103821},{"id":"https://openalex.org/C609986","wikidata":"https://www.wikidata.org/wiki/Q844840","display_name":"Spin-transfer torque","level":4,"score":0.31949999928474426},{"id":"https://openalex.org/C45206210","wikidata":"https://www.wikidata.org/wiki/Q2415817","display_name":"Nanoscopic scale","level":2,"score":0.3021000027656555},{"id":"https://openalex.org/C54553102","wikidata":"https://www.wikidata.org/wiki/Q242657","display_name":"Magnetic moment","level":2,"score":0.298799991607666},{"id":"https://openalex.org/C16389437","wikidata":"https://www.wikidata.org/wiki/Q11421","display_name":"Magnet","level":2,"score":0.28839999437332153},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.2651999890804291},{"id":"https://openalex.org/C19067145","wikidata":"https://www.wikidata.org/wiki/Q1137203","display_name":"Thin film","level":2,"score":0.2603999972343445}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.01118","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.01118","pdf_url":"https://arxiv.org/pdf/2609.01118","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.01118","doi":"https://doi.org/10.48550/arxiv.2609.01118","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.01118","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.01118","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.01118","pdf_url":"https://arxiv.org/pdf/2609.01118","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4318486581","https://openalex.org/W7123330285","https://openalex.org/W7119487897","https://openalex.org/W1981709616","https://openalex.org/W2972863556","https://openalex.org/W3047248220","https://openalex.org/W3144352063","https://openalex.org/W4388285074","https://openalex.org/W2037111509","https://openalex.org/W4323826832"],"abstract_inverted_index":{"Exchange-dominated":[0],"magnons":[1,168],"in":[2,102,169,186],"nanometer-thick":[3],"ferromagnets":[4],"extend":[5],"to":[6,27],"the":[7,29,34,38,46,54,89,93,103,117,124,134,138,143,153,158,162],"terahertz":[8,183],"regime":[9],"through":[10],"thickness":[11],"quantization":[12],"of":[13,31,37,48,92,106,165,181],"perpendicular":[14],"standing":[15],"spin-wave":[16],"(PSSW)":[17],"modes.":[18],"While":[19],"interfacial":[20,39,67,94,119,154],"spin-orbit":[21],"torques":[22],"(SOTs)":[23],"have":[24],"been":[25],"shown":[26],"enable":[28],"excitation":[30,99,164],"such":[32],"modes,":[33],"microscopic":[35,176],"origin":[36],"driving":[40],"torque":[41,74,95,120,125,136,156],"remains":[42],"unclear.":[43],"In":[44],"particular,":[45],"coexistence":[47],"spin":[49,71,149,184],"and":[50,59,69,72,129,148],"orbital":[51,73,147,155],"currents":[52],"complicates":[53],"understanding.":[55],"Here,":[56],"we":[57,115,132],"develop":[58],"use":[60],"an":[61],"atomistic":[62],"framework":[63],"that":[64,152],"explicitly":[65],"resolves":[66],"symmetries":[68],"separates":[70],"contributions.":[75,121],"Exploiting":[76],"a":[77,81,175],"trilayer":[78],"geometry":[79],"for":[80,142,161,178],"thin":[82,170],"ferromagnet":[83],"sandwiched":[84],"between":[85],"non-magnetic":[86],"layers,":[87],"where":[88],"symmetry-controlled":[90],"polarity":[91],"produces":[96],"mode-selective":[97],"magnon":[98],"as":[100,137],"observed":[101],"recent":[104],"experiment":[105],"Salikhov":[107],"et":[108],"al.":[109],"Nature":[110],"Phys.":[111],"19,":[112],"529":[113],"(2023),":[114],"disentangle":[116],"different":[118],"By":[122],"decomposing":[123],"into":[126],"magnetization-even":[127],"(field-like)":[128],"magnetization-odd":[130],"components,":[131],"identify":[133],"field-like":[135],"dominant":[139],"contribution":[140],"responsible":[141],"excitation.":[144],"Crucially,":[145],"isolating":[146],"contributions":[150],"reveals":[151],"provides":[157],"primary":[159],"channel":[160],"efficient":[163],"exchange-dominated":[166],"THz":[167],"ferromagnets.":[171],"Our":[172],"results":[173],"establish":[174],"basis":[177],"symmetry-engineered":[179],"control":[180],"confined":[182],"dynamics":[185],"magnetic":[187],"multilayers.":[188]},"counts_by_year":[],"updated_date":"2026-10-28T10:33:24.094632","created_date":"2026-09-03T00:00:00"}