{"id":"https://openalex.org/W1972004682","doi":"https://doi.org/10.1103/physrevb.38.10611","title":"Dynamics of tetrahedral networks: Amorphous Si and Ge","display_name":"Dynamics of tetrahedral networks: Amorphous Si and Ge","publication_year":1988,"publication_date":"1988-11-15","ids":{"openalex":"https://openalex.org/W1972004682","doi":"https://doi.org/10.1103/physrevb.38.10611","mag":"1972004682","pmid":"https://pubmed.ncbi.nlm.nih.gov/9945915"},"language":"en","primary_location":{"id":"doi:10.1103/physrevb.38.10611","doi":"https://doi.org/10.1103/physrevb.38.10611","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevb.38.10611","pdf_url":null,"source":{"id":"https://openalex.org/S4210174675","display_name":"Physical review. B, Condensed matter","issn_l":"0163-1829","issn":["0163-1829","1095-3795"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","ki-jl-2"],"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","pubmed"],"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/A5111278964","display_name":"N. Maley","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"N. Maley","raw_affiliation_strings":["Department of Physics, Penn State University, University Park, Pennsylvania 16802"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Penn State University, University Park, Pennsylvania 16802","institution_ids":["https://openalex.org/I130769515"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000559285","display_name":"David Beeman","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]},{"id":"https://openalex.org/I133543626","display_name":"Harvey Mudd College","ror":"https://ror.org/025ecfn45","country_code":"US","type":"education","lineage":["https://openalex.org/I133543626"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. Beeman","raw_affiliation_strings":["Department of Physics, Penn State University, University Park, Pennsylvania 16802","Department of Physics, Harvey Mudd College, Claremont, California 91711"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Penn State University, University Park, Pennsylvania 16802","institution_ids":["https://openalex.org/I130769515"]},{"raw_affiliation_string":"Department of Physics, Harvey Mudd College, Claremont, California 91711","institution_ids":["https://openalex.org/I133543626"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084073677","display_name":"Jeffrey S. Lannin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J. S. Lannin","raw_affiliation_strings":["Department of Physics, Penn State University, University Park, Pennsylvania 16802"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Penn State University, University Park, Pennsylvania 16802","institution_ids":["https://openalex.org/I130769515"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.1015,"has_fulltext":false,"cited_by_count":98,"citation_normalized_percentile":{"value":0.9602912,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"38","issue":"15","first_page":"10611","last_page":"10622"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10474","display_name":"Material Dynamics and Properties","score":0.8910999894142151,"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/T10474","display_name":"Material Dynamics and Properties","score":0.8910999894142151,"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/T11315","display_name":"Phase-change materials and chalcogenides","score":0.018400000408291817,"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/T10624","display_name":"Silicon and Solar Cell Technologies","score":0.012199999764561653,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/amorphous-silicon","display_name":"amorphous silicon","score":0.8849999904632568},{"id":"https://openalex.org/keywords/amorphous-germanium","display_name":"amorphous germanium","score":1.0},{"id":"https://openalex.org/keywords/tetrahedral-network","display_name":"tetrahedral network","score":0.8799999952316284},{"id":"https://openalex.org/keywords/raman-spectra","display_name":"Raman spectra","score":0.7329999804496765},{"id":"https://openalex.org/keywords/depolarized-raman-scattering","display_name":"depolarized Raman scattering","score":0.9070000052452087},{"id":"https://openalex.org/keywords/density-of-states","display_name":"density of states","score":0.7390000224113464},{"id":"https://openalex.org/keywords/lattice-dynamics","display_name":"lattice dynamics","score":0.7860000133514404},{"id":"https://openalex.org/keywords/raman-polarizability","display_name":"Raman polarizability","score":0.9190000295639038},{"id":"https://openalex.org/keywords/radial-distribution-function","display_name":"radial distribution function","score":0.5609999895095825}],"concepts":[{"id":"https://openalex.org/C40003534","wikidata":"https://www.wikidata.org/wiki/Q862228","display_name":"Raman spectroscopy","level":2,"score":0.7880019545555115},{"id":"https://openalex.org/C139287275","wikidata":"https://www.wikidata.org/wiki/Q869891","display_name":"Polarizability","level":3,"score":0.6646784543991089},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.6033426523208618},{"id":"https://openalex.org/C169573571","wikidata":"https://www.wikidata.org/wiki/Q466824","display_name":"Raman scattering","level":3,"score":0.5167962312698364},{"id":"https://openalex.org/C56052488","wikidata":"https://www.wikidata.org/wiki/Q103382","display_name":"Amorphous solid","level":2,"score":0.5119673013687134},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4816214442253113},{"id":"https://openalex.org/C41999313","wikidata":"https://www.wikidata.org/wiki/Q489328","display_name":"Molecular physics","level":1,"score":0.4701811373233795},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.4439130425453186},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.4197833836078644},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4157925248146057},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.33653098344802856},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.21269944310188293},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1882404386997223},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.13903337717056274},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.11152032017707825},{"id":"https://openalex.org/C32909587","wikidata":"https://www.wikidata.org/wiki/Q11369","display_name":"Molecule","level":2,"score":0.10421982407569885},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1103/physrevb.38.10611","doi":"https://doi.org/10.1103/physrevb.38.10611","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevb.38.10611","pdf_url":null,"source":{"id":"https://openalex.org/S4210174675","display_name":"Physical review. B, Condensed matter","issn_l":"0163-1829","issn":["0163-1829","1095-3795"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","ki-jl-2"],"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":"pmid:9945915","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/9945915","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical review. B, Condensed matter","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1600110968","https://openalex.org/W1819984462","https://openalex.org/W1968224120","https://openalex.org/W1978128014","https://openalex.org/W1980919406","https://openalex.org/W1999676354","https://openalex.org/W2001697633","https://openalex.org/W2006570923","https://openalex.org/W2008940591","https://openalex.org/W2013865574","https://openalex.org/W2015147708","https://openalex.org/W2021191364","https://openalex.org/W2024531462","https://openalex.org/W2026518426","https://openalex.org/W2030555732","https://openalex.org/W2042693206","https://openalex.org/W2043585621","https://openalex.org/W2044823048","https://openalex.org/W2050729773","https://openalex.org/W2073198318","https://openalex.org/W2078863325","https://openalex.org/W2082804800","https://openalex.org/W2094822979","https://openalex.org/W2492979750"],"related_works":["https://openalex.org/W2050729773","https://openalex.org/W2051149216","https://openalex.org/W2008940591","https://openalex.org/W2075282063","https://openalex.org/W1511344603","https://openalex.org/W2741297387","https://openalex.org/W2074488870","https://openalex.org/W1420733108","https://openalex.org/W1992433224","https://openalex.org/W2317564361"],"abstract_inverted_index":{"Experimental":[0],"data":[1],"are":[2,25,58,68,96,191],"reported":[3],"for":[4,31,63],"depolarized":[5,113],"and":[6,20,45,55,132,139,173,184,198],"fully":[7,65],"polarized":[8,66],"components":[9],"of":[10,14,18,38,48,50,83,105,127,146,149,171,178],"the":[11,43,64,80,93,106,128,147,179],"Raman":[12,29,61,109,114],"spectra":[13,24,62,95],"variably":[15],"ordered":[16,54],"states":[17,49,57,150],"a-Ge":[19,51,183],"a-Si":[21,185],"films.":[22],"These":[23],"compared":[26],"to":[27,70,186],"theoretical":[28,46,94,174],"calculations":[30],"relaxed":[32],"Polk-model-derived":[33],"structures":[34],"with":[35,86,123,155,193],"different":[36],"degrees":[37],"bond-angle":[39,88,180],"disorder.":[40],"In":[41],"addition,":[42],"experimental":[44,172],"densities":[47],"in":[52,117,182],"highly":[53],"disordered":[56],"reported.":[59],"The":[60,112,142,189],"component":[67,115],"found":[69],"yield":[71],"good":[72,153],"agreement":[73,154],"at":[74,137,158],"high":[75],"frequencies,":[76,160],"as":[77,79],"well":[78,122],"observed":[81,101],"trend":[82],"decreased":[84],"width":[85],"increasing":[87],"order.":[89],"At":[90],"low":[91],"frequencies":[92],"more":[97,164],"intense":[98,165],"than":[99],"that":[100],"experimentally,":[102],"indicating":[103],"limitations":[104],"three-parameter":[107],"phenomenological":[108],"polarizability":[110],"model.":[111],"may,":[116],"contrast,":[118],"be":[119,187],"fitted":[120],"reasonably":[121],"a":[124,162],"fixed":[125],"ratio":[126],"D${\\ifmmode":[129,133],"\\tilde{}\\else":[130,134],"\\~{}\\fi{}}_{1}$":[131],"\\~{}\\fi{}}_{2}$":[135],"mechanisms":[136],"intermediate":[138,159],"higher":[140],"energies.":[141],"two-parameter":[143],"lattice-dynamical":[144],"calculation":[145],"density":[148],"also":[151],"yields":[152],"experiment,":[156],"except":[157],"where":[161],"somewhat":[163],"scattering":[166],"is":[167],"observed.":[168],"A":[169],"comparison":[170],"results":[175,190],"allows":[176],"estimates":[177,194],"disorder":[181],"obtained.":[188],"consistent":[192],"based":[195],"on":[196],"radial-distribution-function":[197],"calorimetry":[199],"studies.":[200]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-02T10:15:12.560889","created_date":"2016-06-24T00:00:00"}
