{"id":"https://openalex.org/W7224004346","doi":"https://doi.org/10.48550/arxiv.2610.35360","title":"Simultaneous suppression and temperature-driven crossover of particle-like and wave-like thermal transport in trigonal CsAg$_3$S$_2$","display_name":"Simultaneous suppression and temperature-driven crossover of particle-like and wave-like thermal transport in trigonal CsAg$_3$S$_2$","publication_year":2026,"publication_date":"2026-10-22","ids":{"openalex":"https://openalex.org/W7224004346","doi":"https://doi.org/10.48550/arxiv.2610.35360"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2610.35360","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.35360","pdf_url":"https://arxiv.org/pdf/2610.35360","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2610.35360","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5114337816","display_name":"Vivek Gusain","orcid":"https://orcid.org/0009-0001-2644-5791","observed_orcids":["https://orcid.org/0009-0001-2644-5791"]},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Gusain, Vivek","raw_affiliation_strings":["Department of Physics , Indian Institute of Technology , Hauz Khas , New Delhi 110016 , India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics , Indian Institute of Technology , Hauz Khas , New Delhi 110016 , India","institution_ids":["https://openalex.org/I68891433"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5159943858","display_name":"B K Mani","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Mani, B K","raw_affiliation_strings":["Department of Physics , Indian Institute of Technology , Hauz Khas , New Delhi 110016 , India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics , Indian Institute of Technology , Hauz Khas , New Delhi 110016 , India","institution_ids":["https://openalex.org/I68891433"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I68891433"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"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/T11277","display_name":"Thermal properties of materials","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11277","display_name":"Thermal properties of materials","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10440","display_name":"Advanced Thermoelectric Materials and Devices","score":0.00279999990016222,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12875","display_name":"Thermal Expansion and Ionic Conductivity","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/lattice-thermal-conductivity","display_name":"lattice thermal conductivity","score":0.9110000133514404},{"id":"https://openalex.org/keywords/anharmonic-phonon-scattering","display_name":"anharmonic phonon scattering","score":0.7549999952316284},{"id":"https://openalex.org/keywords/quartic-anharmonicity","display_name":"quartic anharmonicity","score":0.7749999761581421},{"id":"https://openalex.org/keywords/phonon-localization","display_name":"phonon localization","score":0.48500001430511475},{"id":"https://openalex.org/keywords/ternary-chalcogenide-semiconductors","display_name":"ternary chalcogenide","score":0.781000018119812},{"id":"https://openalex.org/keywords/thermoelectric-figure-of-merit","display_name":"figure of merit ZT","score":0.777999997138977},{"id":"https://openalex.org/keywords/ultralow-thermal-conductivity","display_name":"ultralow thermal conductivity","score":0.7620000243186951}],"concepts":[{"id":"https://openalex.org/C147724859","wikidata":"https://www.wikidata.org/wiki/Q545228","display_name":"Anharmonicity","level":2,"score":0.8334000110626221},{"id":"https://openalex.org/C97346530","wikidata":"https://www.wikidata.org/wiki/Q487005","display_name":"Thermal conductivity","level":2,"score":0.777899980545044},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.7357000112533569},{"id":"https://openalex.org/C24169881","wikidata":"https://www.wikidata.org/wiki/Q186608","display_name":"Phonon","level":2,"score":0.6384999752044678},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6097000241279602},{"id":"https://openalex.org/C64452783","wikidata":"https://www.wikidata.org/wiki/Q1524945","display_name":"Ternary operation","level":2,"score":0.46639999747276306},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.4535999894142151},{"id":"https://openalex.org/C172100665","wikidata":"https://www.wikidata.org/wiki/Q7465774","display_name":"Thermal conduction","level":2,"score":0.44209998846054077},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.43050000071525574},{"id":"https://openalex.org/C2776029896","wikidata":"https://www.wikidata.org/wiki/Q3935810","display_name":"Relaxation (psychology)","level":2,"score":0.3747999966144562},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.3644999861717224},{"id":"https://openalex.org/C131584629","wikidata":"https://www.wikidata.org/wiki/Q4308705","display_name":"Coupling (piping)","level":2,"score":0.33059999346733093},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.2840999960899353},{"id":"https://openalex.org/C57863236","wikidata":"https://www.wikidata.org/wiki/Q1130571","display_name":"Doping","level":2,"score":0.2754000127315521},{"id":"https://openalex.org/C168986899","wikidata":"https://www.wikidata.org/wiki/Q756307","display_name":"Mean free path","level":3,"score":0.26339998841285706}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2610.35360","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.35360","pdf_url":"https://arxiv.org/pdf/2610.35360","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2610.35360","doi":"https://doi.org/10.48550/arxiv.2610.35360","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2610.35360","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:2610.35360","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.35360","pdf_url":"https://arxiv.org/pdf/2610.35360","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G3017440768","display_name":null,"funder_award_id":"CRG/2022/000178","funder_id":"https://openalex.org/F4320334771","funder_display_name":"Science and Engineering Research Board"}],"funders":[{"id":"https://openalex.org/F4320320719","display_name":"Department of Science and Technology, Ministry of Science and Technology, India","ror":"https://ror.org/0101xrq71"},{"id":"https://openalex.org/F4320324473","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06"},{"id":"https://openalex.org/F4320334771","display_name":"Science and Engineering Research Board","ror":"https://ror.org/03ffdsr55"},{"id":"https://openalex.org/F4320336062","display_name":"Inter-University Accelerator Centre","ror":"https://ror.org/0066qbn28"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7224004346.pdf","grobid_xml":"https://content.openalex.org/works/W7224004346.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W4399923673","https://openalex.org/W7204182028","https://openalex.org/W2890439001","https://openalex.org/W7167888771","https://openalex.org/W7221760136","https://openalex.org/W7203535281","https://openalex.org/W7077863754","https://openalex.org/W4387892280","https://openalex.org/W4413284988","https://openalex.org/W4391559133"],"abstract_inverted_index":{"The":[0,193],"simultaneous":[1,92],"suppression":[2,93],"of":[3,51,62,81,151,185,202,221],"particle-like":[4],"($\u03ba_p$":[5],")":[6],"and":[7,44,47,74,103,158],"wave-like":[8],"($\u03ba_c$)":[9],"thermal":[10,32,52,60,154,168,204],"transport":[11,33,140,172],"channels":[12],"in":[13,34,116,206],"crystalline":[14],"materials":[15],"remains":[16],"a":[17,77,143,183],"challenging":[18],"problem,":[19],"as":[20,224],"reducing":[21,231],"one":[22],"channel":[23,141],"can":[24],"enhance":[25,100],"the":[26,31,48,87,104,130,134,138,166,175,199,212,218,234],"other.":[27],"Here,":[28],"we":[29,181],"investigate":[30],"trigonal":[35,207],"$P\\Bar{3}m1$":[36],"CsAg$_3$S$_2$":[37,208],"using":[38],"self-consistent":[39],"phonon":[40,110,135],"theory":[41,50],"with":[42,76,118,146,170],"cubic":[43],"quartic":[45],"anharmonicity":[46],"unified":[49],"transport.":[53],"Our":[54],"calculations":[55],"predict":[56],"an":[57,225],"ultralow":[58,167,203],"lattice":[59,153],"conductivity":[61,155,169,205],"0.222":[63],"W":[64],"m$^{-1}$":[65],"K$^{-1}$":[66],"at":[67,156,163,190],"300":[68],"K,":[69],"featuring":[70],"simultaneously":[71],"low":[72],"$\u03ba_p$":[73,147,232],"$\u03ba_c$":[75,127,159],"weak":[78],"temperature":[79],"dependence":[80],"$\\sim$T$^{-0.42}$,":[82],"which":[83,99,108],"deviates":[84],"significantly":[85],"from":[86,95],"conventional":[88],"$\\sim$T$^{-1}$":[89],"behavior.":[90],"This":[91],"arises":[94],"localized":[96],"Cs":[97],"modes,":[98],"anharmonic":[101],"scattering,":[102],"softer":[105],"Ag-S":[106],"framework,":[107],"reduces":[109],"group":[111],"velocities,":[112],"together":[113],"suppressing":[114],"$\u03ba_p$,":[115],"conjunction":[117],"sparse,":[119],"well-separated":[120],"high-frequency":[121],"S-derived":[122],"optical":[123],"modes":[124],"that":[125],"suppress":[126],"by":[128],"limiting":[129],"coherent":[131],"coupling":[132],"between":[133],"modes.":[136],"Furthermore,":[137],"dominant":[139],"exhibits":[142],"temperature-dependent":[144],"crossover,":[145],"contributing":[148,160],"$\\sim$74":[149],"\\%":[150,162],"total":[152],"300~K":[157],"$\\sim$63":[161],"700~K.":[164],"Combining":[165],"electrical":[171],"calculated":[173],"within":[174,217,233],"momentum":[176],"relaxation":[177],"time":[178],"approximation":[179],"(MRTA),":[180],"obtain":[182],"$ZT$":[184],"1.28":[186],"for":[187,229],"$n$-type":[188],"doping":[189],"700":[191],"K.":[192],"present":[194],"work":[195],"not":[196],"only":[197],"clarifies":[198],"microscopic":[200],"mechanism":[201],"but":[209],"also":[210],"identifies":[211],"covalent":[213],"M-Ch":[214],"framework":[215],"modification":[216],"AM$_3$Ch$_2$":[219],"family":[220],"ternary":[222],"chalcogenides":[223],"additional":[226],"tuning":[227],"parameter":[228],"further":[230],"bonding-hierarchy":[235],"design":[236],"principle.":[237]},"counts_by_year":[],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2026-10-28T00:00:00"}
