Dynamics in He at 4 and 8 K from inelastic neutron scattering
From inelastic neutron scattering we determine the dynamic structure factor S(q, omega ) of fluid He at 4 K (1 bar; 19.51 nm super(-3)) and 8 K (18.7 bar; 19.46 nm super(-3)) as a function of frequency omega for wavenumbers 1 < q < 30 nm super(-1). For q less than or approximate to 4 nm super(...
Gespeichert in:
| Veröffentlicht in: | Journal of Low Temperature Physics 1996, Vol.105 (1-2), p.149-183 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 183 |
|---|---|
| container_issue | 1-2 |
| container_start_page | 149 |
| container_title | Journal of Low Temperature Physics |
| container_volume | 105 |
| creator | CREVECOEUR, R. M SMORENBURG, H. E DE SCHEPPER, I. M |
| description | From inelastic neutron scattering we determine the dynamic structure factor S(q, omega ) of fluid He at 4 K (1 bar; 19.51 nm super(-3)) and 8 K (18.7 bar; 19.46 nm super(-3)) as a function of frequency omega for wavenumbers 1 < q < 30 nm super(-1). For q less than or approximate to 4 nm super(-1), S(q, omega ) is given by the Rayleigh-Brillouin triplet of hydrodynamics. For q > 4 nm super(-1) the central Rayleigh line vanishes and S(q, omega ) is given by the phonon Damped Harmonic Oscillator model similar as in superfluid helium. The phonons are overdamped for a small region near q identical with 20 nm super(-1). At 8 K, helium starts to behave in a visco-elastic manner, similar as seen in classical fluids. We discuss a unifying model that connects the properties of superfluid helium to those of classical fluids. |
| doi_str_mv | 10.1007/BF00754632 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_proquest_miscellaneous_746115010</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>746115010</sourcerecordid><originalsourceid>FETCH-LOGICAL-c262t-36f1b0a034d471d82c5b2b9b3e9f182fd241766d5cddfe1de5a39e7ae22176bf3</originalsourceid><addsrcrecordid>eNp9kEtLxDAUhYMoOI5u_AURREGoJjdN2i5c6PgYccCNrkuah0badEwyi_n3RmbQnYt7Lxy-ezgchI4puaSEVFe3D3nzUjDYQRPKK1ZUjFe7aEIIQAHQ0H10EOMnIaSpBZug67u1l4NTETuP5wbLhEssvcY1fsY2jEPWTS9jcgp7s0ph9DgqmZIJzr8foj0r-2iOtneK3h7uX2fzYvHy-DS7WRQKBKSCCUs7IgkrdVlRXYPiHXRNx0xjaQ1WQ0krITRXWltDteGSNaaSBiDrnWVTdLLxHXOQNiqXjPpQo_dGpbasoWxoZs43zDKMXysTUzu4qEzfS2_GVWyrUlDKCSWZPPuXBEE5gzxTdLEBVRhjDMa2y-AGGdYtJe1P3-1f3xk-3brKXFBvg_TKxd-PnJEI4OwbOvV8Kw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>26153215</pqid></control><display><type>article</type><title>Dynamics in He at 4 and 8 K from inelastic neutron scattering</title><source>SpringerLink Journals</source><creator>CREVECOEUR, R. M ; SMORENBURG, H. E ; DE SCHEPPER, I. M</creator><creatorcontrib>CREVECOEUR, R. M ; SMORENBURG, H. E ; DE SCHEPPER, I. M</creatorcontrib><description>From inelastic neutron scattering we determine the dynamic structure factor S(q, omega ) of fluid He at 4 K (1 bar; 19.51 nm super(-3)) and 8 K (18.7 bar; 19.46 nm super(-3)) as a function of frequency omega for wavenumbers 1 < q < 30 nm super(-1). For q less than or approximate to 4 nm super(-1), S(q, omega ) is given by the Rayleigh-Brillouin triplet of hydrodynamics. For q > 4 nm super(-1) the central Rayleigh line vanishes and S(q, omega ) is given by the phonon Damped Harmonic Oscillator model similar as in superfluid helium. The phonons are overdamped for a small region near q identical with 20 nm super(-1). At 8 K, helium starts to behave in a visco-elastic manner, similar as seen in classical fluids. We discuss a unifying model that connects the properties of superfluid helium to those of classical fluids.</description><identifier>ISSN: 0022-2291</identifier><identifier>EISSN: 1573-7357</identifier><identifier>DOI: 10.1007/BF00754632</identifier><identifier>CODEN: JLTPAC</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Brillouin scattering ; Condensed matter: structure, mechanical and thermal properties ; Damping ; DYNAMICS ; Exact sciences and technology ; Flow of fluids ; HELIUM ; HYDRODYNAMICS ; Low temperature effects ; Mathematical models ; Neutron scattering ; Other topics in quantum fluids and solids; liquid and solid helium ; Phonons ; PHYSICS ; Quantum fluids and solids; liquid and solid helium ; Rayleigh scattering ; STRUCTURE FACTORS ; SUPERFLUIDITY ; TEMPERATURE RANGE 0000-0013 K ; Viscoelasticity</subject><ispartof>Journal of Low Temperature Physics, 1996, Vol.105 (1-2), p.149-183</ispartof><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c262t-36f1b0a034d471d82c5b2b9b3e9f182fd241766d5cddfe1de5a39e7ae22176bf3</citedby><cites>FETCH-LOGICAL-c262t-36f1b0a034d471d82c5b2b9b3e9f182fd241766d5cddfe1de5a39e7ae22176bf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,881,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2490625$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/482491$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>CREVECOEUR, R. M</creatorcontrib><creatorcontrib>SMORENBURG, H. E</creatorcontrib><creatorcontrib>DE SCHEPPER, I. M</creatorcontrib><title>Dynamics in He at 4 and 8 K from inelastic neutron scattering</title><title>Journal of Low Temperature Physics</title><description>From inelastic neutron scattering we determine the dynamic structure factor S(q, omega ) of fluid He at 4 K (1 bar; 19.51 nm super(-3)) and 8 K (18.7 bar; 19.46 nm super(-3)) as a function of frequency omega for wavenumbers 1 < q < 30 nm super(-1). For q less than or approximate to 4 nm super(-1), S(q, omega ) is given by the Rayleigh-Brillouin triplet of hydrodynamics. For q > 4 nm super(-1) the central Rayleigh line vanishes and S(q, omega ) is given by the phonon Damped Harmonic Oscillator model similar as in superfluid helium. The phonons are overdamped for a small region near q identical with 20 nm super(-1). At 8 K, helium starts to behave in a visco-elastic manner, similar as seen in classical fluids. We discuss a unifying model that connects the properties of superfluid helium to those of classical fluids.</description><subject>Brillouin scattering</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Damping</subject><subject>DYNAMICS</subject><subject>Exact sciences and technology</subject><subject>Flow of fluids</subject><subject>HELIUM</subject><subject>HYDRODYNAMICS</subject><subject>Low temperature effects</subject><subject>Mathematical models</subject><subject>Neutron scattering</subject><subject>Other topics in quantum fluids and solids; liquid and solid helium</subject><subject>Phonons</subject><subject>PHYSICS</subject><subject>Quantum fluids and solids; liquid and solid helium</subject><subject>Rayleigh scattering</subject><subject>STRUCTURE FACTORS</subject><subject>SUPERFLUIDITY</subject><subject>TEMPERATURE RANGE 0000-0013 K</subject><subject>Viscoelasticity</subject><issn>0022-2291</issn><issn>1573-7357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAUhYMoOI5u_AURREGoJjdN2i5c6PgYccCNrkuah0badEwyi_n3RmbQnYt7Lxy-ezgchI4puaSEVFe3D3nzUjDYQRPKK1ZUjFe7aEIIQAHQ0H10EOMnIaSpBZug67u1l4NTETuP5wbLhEssvcY1fsY2jEPWTS9jcgp7s0ph9DgqmZIJzr8foj0r-2iOtneK3h7uX2fzYvHy-DS7WRQKBKSCCUs7IgkrdVlRXYPiHXRNx0xjaQ1WQ0krITRXWltDteGSNaaSBiDrnWVTdLLxHXOQNiqXjPpQo_dGpbasoWxoZs43zDKMXysTUzu4qEzfS2_GVWyrUlDKCSWZPPuXBEE5gzxTdLEBVRhjDMa2y-AGGdYtJe1P3-1f3xk-3brKXFBvg_TKxd-PnJEI4OwbOvV8Kw</recordid><startdate>1996</startdate><enddate>1996</enddate><creator>CREVECOEUR, R. M</creator><creator>SMORENBURG, H. E</creator><creator>DE SCHEPPER, I. M</creator><general>Springer</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7TC</scope><scope>OTOTI</scope></search><sort><creationdate>1996</creationdate><title>Dynamics in He at 4 and 8 K from inelastic neutron scattering</title><author>CREVECOEUR, R. M ; SMORENBURG, H. E ; DE SCHEPPER, I. M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c262t-36f1b0a034d471d82c5b2b9b3e9f182fd241766d5cddfe1de5a39e7ae22176bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Brillouin scattering</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Damping</topic><topic>DYNAMICS</topic><topic>Exact sciences and technology</topic><topic>Flow of fluids</topic><topic>HELIUM</topic><topic>HYDRODYNAMICS</topic><topic>Low temperature effects</topic><topic>Mathematical models</topic><topic>Neutron scattering</topic><topic>Other topics in quantum fluids and solids; liquid and solid helium</topic><topic>Phonons</topic><topic>PHYSICS</topic><topic>Quantum fluids and solids; liquid and solid helium</topic><topic>Rayleigh scattering</topic><topic>STRUCTURE FACTORS</topic><topic>SUPERFLUIDITY</topic><topic>TEMPERATURE RANGE 0000-0013 K</topic><topic>Viscoelasticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CREVECOEUR, R. M</creatorcontrib><creatorcontrib>SMORENBURG, H. E</creatorcontrib><creatorcontrib>DE SCHEPPER, I. M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Mechanical Engineering Abstracts</collection><collection>OSTI.GOV</collection><jtitle>Journal of Low Temperature Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CREVECOEUR, R. M</au><au>SMORENBURG, H. E</au><au>DE SCHEPPER, I. M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dynamics in He at 4 and 8 K from inelastic neutron scattering</atitle><jtitle>Journal of Low Temperature Physics</jtitle><date>1996</date><risdate>1996</risdate><volume>105</volume><issue>1-2</issue><spage>149</spage><epage>183</epage><pages>149-183</pages><issn>0022-2291</issn><eissn>1573-7357</eissn><coden>JLTPAC</coden><abstract>From inelastic neutron scattering we determine the dynamic structure factor S(q, omega ) of fluid He at 4 K (1 bar; 19.51 nm super(-3)) and 8 K (18.7 bar; 19.46 nm super(-3)) as a function of frequency omega for wavenumbers 1 < q < 30 nm super(-1). For q less than or approximate to 4 nm super(-1), S(q, omega ) is given by the Rayleigh-Brillouin triplet of hydrodynamics. For q > 4 nm super(-1) the central Rayleigh line vanishes and S(q, omega ) is given by the phonon Damped Harmonic Oscillator model similar as in superfluid helium. The phonons are overdamped for a small region near q identical with 20 nm super(-1). At 8 K, helium starts to behave in a visco-elastic manner, similar as seen in classical fluids. We discuss a unifying model that connects the properties of superfluid helium to those of classical fluids.</abstract><cop>Heidelberg</cop><pub>Springer</pub><doi>10.1007/BF00754632</doi><tpages>35</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-2291 |
| ispartof | Journal of Low Temperature Physics, 1996, Vol.105 (1-2), p.149-183 |
| issn | 0022-2291 1573-7357 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_746115010 |
| source | SpringerLink Journals |
| subjects | Brillouin scattering Condensed matter: structure, mechanical and thermal properties Damping DYNAMICS Exact sciences and technology Flow of fluids HELIUM HYDRODYNAMICS Low temperature effects Mathematical models Neutron scattering Other topics in quantum fluids and solids liquid and solid helium Phonons PHYSICS Quantum fluids and solids liquid and solid helium Rayleigh scattering STRUCTURE FACTORS SUPERFLUIDITY TEMPERATURE RANGE 0000-0013 K Viscoelasticity |
| title | Dynamics in He at 4 and 8 K from inelastic neutron scattering |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-11T02%3A45%3A52IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Dynamics%20in%20He%20at%204%20and%208%20K%20from%20inelastic%20neutron%20scattering&rft.jtitle=Journal%20of%20Low%20Temperature%20Physics&rft.au=CREVECOEUR,%20R.%20M&rft.date=1996&rft.volume=105&rft.issue=1-2&rft.spage=149&rft.epage=183&rft.pages=149-183&rft.issn=0022-2291&rft.eissn=1573-7357&rft.coden=JLTPAC&rft_id=info:doi/10.1007/BF00754632&rft_dat=%3Cproquest_osti_%3E746115010%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=26153215&rft_id=info:pmid/&rfr_iscdi=true |