{"id":"https://openalex.org/W2744568104","doi":"https://doi.org/10.1103/physrevb.96.085115","title":"Electronic bands and optical conductivity of the Dzyaloshinsky-Moriya multiferroic Ba2CuGe2O7","display_name":"Electronic bands and optical conductivity of the Dzyaloshinsky-Moriya multiferroic Ba2CuGe2O7","publication_year":2017,"publication_date":"2017-08-10","ids":{"openalex":"https://openalex.org/W2744568104","doi":"https://doi.org/10.1103/physrevb.96.085115","mag":"2744568104"},"language":"lv","primary_location":{"id":"doi:10.1103/physrevb.96.085115","doi":"https://doi.org/10.1103/physrevb.96.085115","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevb.96.085115","pdf_url":null,"source":{"id":"https://openalex.org/S4210237713","display_name":"Physical review. B./Physical review. B","issn_l":"2469-9950","issn":["2469-9950","2469-9969","2469-9977"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review B","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5024360429","display_name":"M. Corasaniti","orcid":"https://orcid.org/0000-0001-9837-1552","observed_orcids":["https://orcid.org/0000-0001-9837-1552"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"M. Corasaniti","raw_affiliation_strings":["Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066370199","display_name":"Paolo Barone","orcid":"https://orcid.org/0000-0001-7222-8627","observed_orcids":["https://orcid.org/0000-0001-7222-8627"]},"institutions":[{"id":"https://openalex.org/I26415053","display_name":"University of L'Aquila","ror":"https://ror.org/01j9p1r26","country_code":"IT","type":"education","lineage":["https://openalex.org/I26415053"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"P. Barone","raw_affiliation_strings":["CNR-SPIN c/o Universit\u00e0 dell'Aquila, L'Aquila, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN c/o Universit\u00e0 dell'Aquila, L'Aquila, Italy","institution_ids":["https://openalex.org/I26415053"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010796479","display_name":"A. Nucara","orcid":"https://orcid.org/0000-0002-7088-4820","observed_orcids":["https://orcid.org/0000-0002-7088-4820"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"A. Nucara","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056218822","display_name":"Michele Ortolani","orcid":"https://orcid.org/0000-0002-7203-5355","observed_orcids":["https://orcid.org/0000-0002-7203-5355"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"M. Ortolani","raw_affiliation_strings":["Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030900375","display_name":"Leonetta Baldassarre","orcid":"https://orcid.org/0000-0003-2217-0564","observed_orcids":["https://orcid.org/0000-0003-2217-0564"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"L. Baldassarre","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084359026","display_name":"R. Fittipaldi","orcid":"https://orcid.org/0000-0003-2096-7983","observed_orcids":["https://orcid.org/0000-0003-2096-7983"]},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"R. Fittipaldi","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy","institution_ids":["https://openalex.org/I131729948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090106135","display_name":"V. Granata","orcid":"https://orcid.org/0000-0003-2246-6963","observed_orcids":["https://orcid.org/0000-0003-2246-6963","https://orcid.org/0000-0002-1425-4541"]},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"V. Granata","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy","institution_ids":["https://openalex.org/I131729948"]}]},{"author_position":"middle","author":{"id":null,"display_name":"L. Rocco","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"L. Rocco","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy","institution_ids":["https://openalex.org/I131729948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062136351","display_name":"A. Vecchione","orcid":"https://orcid.org/0000-0001-6848-6084","observed_orcids":["https://orcid.org/0000-0001-6848-6084"]},"institutions":[{"id":"https://openalex.org/I131729948","display_name":"University of Salerno","ror":"https://ror.org/0192m2k53","country_code":"IT","type":"education","lineage":["https://openalex.org/I131729948"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"A. Vecchione","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica \u201cE. R. Caianiello\u201d, Via Ponte don Mellillo, I-84084 Fisciano, Salerno, Italy","institution_ids":["https://openalex.org/I131729948"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023723596","display_name":"W. S. Mohamed","orcid":"https://orcid.org/0000-0003-4069-8637","observed_orcids":["https://orcid.org/0000-0003-4069-8637"]},"institutions":[{"id":"https://openalex.org/I97455420","display_name":"Sohag University","ror":"https://ror.org/02wgx3e98","country_code":"EG","type":"education","lineage":["https://openalex.org/I97455420"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"W. S. Mohamed","raw_affiliation_strings":["Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt","institution_ids":["https://openalex.org/I97455420"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082497877","display_name":"J. Lorenzana","orcid":"https://orcid.org/0000-0001-7426-2570","observed_orcids":["https://orcid.org/0000-0001-7426-2570"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"J. Lorenzana","raw_affiliation_strings":["CNR-ISC c/o Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-ISC c/o Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013474761","display_name":"P. Calvani","orcid":"https://orcid.org/0000-0002-6764-1617","observed_orcids":["https://orcid.org/0000-0002-6764-1617"]},"institutions":[{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"P. Calvani","raw_affiliation_strings":["CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CNR-SPIN and Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma, P.le A. Moro 5, 00185 Roma, Italy","institution_ids":["https://openalex.org/I861853513"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.8444,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.69179469,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"96","issue":"8","first_page":"1","last_page":"85115"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10886","display_name":"Multiferroics and related materials","score":0.9570000171661377,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T10886","display_name":"Multiferroics and related materials","score":0.9570000171661377,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T11682","display_name":"Advanced Condensed Matter Physics","score":0.019099999219179153,"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/T10607","display_name":"Magnetic and transport properties of perovskites and related materials","score":0.007000000216066837,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/dzyaloshinskii-moriya-interaction","display_name":"Dzyaloshinskii-Moriya interaction","score":0.949999988079071},{"id":"https://openalex.org/keywords/multiferroics","display_name":"multiferroics","score":0.9750000238418579},{"id":"https://openalex.org/keywords/optical-conductivity","display_name":"optical conductivity","score":0.859000027179718},{"id":"https://openalex.org/keywords/band-structure","display_name":"electronic band structure","score":0.9340000152587891},{"id":"https://openalex.org/keywords/reflectivity","display_name":"reflectivity","score":0.6869999766349792},{"id":"https://openalex.org/keywords/temperature-dependent-absorption","display_name":"temperature dependence of absorption","score":0.5759999752044678},{"id":"https://openalex.org/keywords/infrared-absorption","display_name":"infrared absorption","score":0.503000020980835}],"concepts":[{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.5356724858283997},{"id":"https://openalex.org/C123266903","wikidata":"https://www.wikidata.org/wiki/Q1432148","display_name":"Multiferroics","level":4,"score":0.5269975066184998},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4774758815765381},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4774109125137329},{"id":"https://openalex.org/C2778187894","wikidata":"https://www.wikidata.org/wiki/Q7098840","display_name":"Optical conductivity","level":2,"score":0.4462670683860779},{"id":"https://openalex.org/C86025842","wikidata":"https://www.wikidata.org/wiki/Q5358432","display_name":"Electronic structure","level":2,"score":0.4355495870113373},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.40313079953193665},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.12213987112045288},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.07756781578063965},{"id":"https://openalex.org/C133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","level":2,"score":0.0},{"id":"https://openalex.org/C79090758","wikidata":"https://www.wikidata.org/wiki/Q1045739","display_name":"Ferroelectricity","level":3,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1103/physrevb.96.085115","doi":"https://doi.org/10.1103/physrevb.96.085115","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevb.96.085115","pdf_url":null,"source":{"id":"https://openalex.org/S4210237713","display_name":"Physical review. B./Physical review. B","issn_l":"2469-9950","issn":["2469-9950","2469-9969","2469-9977"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-2","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review B","raw_type":"journal-article"},{"id":"pmh:oai:iris.uniroma1.it:11573/1001869","doi":null,"is_oa":false,"landing_page_url":"http://hdl.handle.net/11573/1001869","pdf_url":null,"source":{"id":"https://openalex.org/S4377196107","display_name":"IRIS Research product catalog (Sapienza University of Rome)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"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":"info:eu-repo/semantics/article"},{"id":"pmh:oai:iris.uniroma3.it:11590/491422","doi":null,"is_oa":false,"landing_page_url":"https://hdl.handle.net/11590/491422","pdf_url":null,"source":{"id":"https://openalex.org/S4377196120","display_name":"Iris (Roma Tre University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I119003972","host_organization_name":"Roma Tre University","host_organization_lineage":["https://openalex.org/I119003972"],"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":"info:eu-repo/semantics/article"},{"id":"mag:3115693672","doi":null,"is_oa":false,"landing_page_url":"https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201702218322276441","pdf_url":null,"source":{"id":"https://openalex.org/S6791298","display_name":"Physical Review B","issn_l":"1098-0121","issn":["1098-0121","1538-4489","1550-235X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Physical Review B","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W1571853376","https://openalex.org/W1572477495","https://openalex.org/W1575492558","https://openalex.org/W1629645571","https://openalex.org/W1781190493","https://openalex.org/W1971375397","https://openalex.org/W1971689407","https://openalex.org/W1979544533","https://openalex.org/W1981368803","https://openalex.org/W1986731219","https://openalex.org/W1988447199","https://openalex.org/W1991107246","https://openalex.org/W2004953465","https://openalex.org/W2005231341","https://openalex.org/W2009501291","https://openalex.org/W2010315827","https://openalex.org/W2016168218","https://openalex.org/W2016314334","https://openalex.org/W2018763953","https://openalex.org/W2020098813","https://openalex.org/W2036405286","https://openalex.org/W2038618579","https://openalex.org/W2043304409","https://openalex.org/W2048835561","https://openalex.org/W2057054754","https://openalex.org/W2066101367","https://openalex.org/W2076229712","https://openalex.org/W2082356777","https://openalex.org/W2088081187","https://openalex.org/W2094583954","https://openalex.org/W2097261790","https://openalex.org/W2106776418","https://openalex.org/W2110576721","https://openalex.org/W2120817028","https://openalex.org/W2121624572","https://openalex.org/W2146084604","https://openalex.org/W2194026958","https://openalex.org/W2214504069","https://openalex.org/W2244912396","https://openalex.org/W2257820496","https://openalex.org/W2273992051","https://openalex.org/W2283907593","https://openalex.org/W2293452066","https://openalex.org/W2314915876","https://openalex.org/W2330804453","https://openalex.org/W2338887591","https://openalex.org/W2462647926","https://openalex.org/W2518703860","https://openalex.org/W2735806552"],"related_works":["https://openalex.org/W3115693672","https://openalex.org/W2273992051","https://openalex.org/W4406271110","https://openalex.org/W2090207400","https://openalex.org/W2048856061","https://openalex.org/W4392088153","https://openalex.org/W1978570160","https://openalex.org/W2509456730","https://openalex.org/W2012891654","https://openalex.org/W2068835202"],"abstract_inverted_index":{"We":[0],"have":[1],"measured":[2],"the":[3,6,11,19,44,65,79,90,115,129],"reflectivity":[4],"in":[5,64,89,109],"$ab$":[7,66],"plane":[8,67],"and":[9,28,93],"along":[10],"$c$":[12],"axis":[13],"of":[14,18,46,48,78,119,128],"a":[15,95],"single":[16],"crystal":[17],"Dzyaloshinsky-Moriya":[20],"multiferroic":[21],"${\\mathrm{Ba}}_{2}{\\mathrm{CuGe}}_{2}{\\mathrm{O}}_{7}$,":[22],"from":[23,29],"20":[24],"to":[25,31,126],"300":[26],"K":[27],"700":[30],"24":[32],"000":[33],"${\\mathrm{cm}}^{\\ensuremath{-}1}$.":[34],"The":[35],"resulting":[36],"optical":[37],"conductivity":[38],"$\\ensuremath{\\sigma}(\\ensuremath{\\omega})$":[39],"has":[40,94],"been":[41],"compared":[42],"with":[43,75,101,117],"results":[45],"calculations":[47],"its":[49],"electronic":[50,84,121],"band":[51],"structure":[52],"based":[53],"on":[54],"density":[55],"functional":[56],"theory":[57],"(DFT).":[58],"A":[59,82],"broad":[60],"midinfrared":[61],"band,":[62],"which":[63],"strongly":[68],"hardens":[69],"for":[70],"decreasing":[71,102],"temperature,":[72],"is":[73],"consistent":[74],"d-d":[76],"transitions":[77],"Cu":[80],"atom.":[81],"further":[83],"absorption,":[85],"whose":[86],"edge":[87],"falls":[88],"near":[91],"infrared":[92],"strong":[96],"O-$p$":[97],"character,":[98],"unusually":[99],"softens":[100],"temperature":[103,118],"by":[104],"more":[105],"than":[106],"0.15":[107],"eV,":[108],"both":[110],"polarizations.":[111],"Calculations":[112],"show":[113],"that":[114],"behavior":[116],"those":[120],"bands":[122],"can":[123],"be":[124],"related":[125],"distortions":[127],"${\\mathrm{CuO}}_{4}$":[130],"tetrahedra.":[131]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2017-08-17T00:00:00"}
