Frequency-dependent thermal response of indium nanoparticles in porous glass
Identifieur interne : 000057 ( Main/Exploration ); précédent : 000056; suivant : 000058Frequency-dependent thermal response of indium nanoparticles in porous glass
Auteurs : RBID : ISTEX:10582_1996_Article_BF02571175.pdfAbstract
AC thermal measurements were made on indium nanoparticles in the dielectric porous host Vycor in the temperature range of 1.4 K to 10 K. The width of the superconducting transition and the size of the specific heat discontinuity at the transition were the same as for bulk indium, indicating that thermal fluctuations are negligible and that the indium particles are moderately coupled. The heat transfer process was studied via the frequency dependence of the thermal response. The response changes dramatically when the indium nanoparticles can no longer follow the driving heater. The temperature dependence of the indium system thermal response time can be estimated from the data. Using a model which considers only electronic thermal conduction, we find a temperature-independent (for T>Tc) electronic mean free path of 1 nm, consistent with resistivity and critical field data.
DOI: 10.1007/BF02571175
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<record><TEI><teiHeader><fileDesc><titleStmt><title>Frequency-dependent thermal response of indium nanoparticles in porous glass</title><author><name>F. Dong</name><affiliation wicri:level="1"><mods:affiliation>Department of Physics, Boston College, 02167, Chestnut Hill, MA, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Physics, Boston College, 02167, Chestnut Hill, MA</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName></affiliation></author><author><name>M. J. Graf</name><affiliation wicri:level="1"><mods:affiliation>Department of Physics, Boston College, 02167, Chestnut Hill, MA, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Physics, Boston College, 02167, Chestnut Hill, MA</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName></affiliation></author><author><name>T. E. Huber</name><affiliation wicri:level="1"><mods:affiliation>Department of Physics, Polytechnic University, 11201, Brooklyn, NY, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Physics, Polytechnic University, 11201, Brooklyn, NY</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author><author><name>C. I. Huber</name><affiliation wicri:level="1"><mods:affiliation>National Science Foundation, 22230, Arlington, VA, USA</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>National Science Foundation, 22230, Arlington, VA</wicri:regionArea><placeName><region type="state">Virginie</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="RBID">ISTEX:10582_1996_Article_BF02571175.pdf</idno><date when="1996">1996</date><idno type="doi">10.1007/BF02571175</idno><idno type="wicri:Area/Main/Corpus">000C86</idno><idno type="wicri:Area/Main/Curation">000C86</idno><idno type="wicri:Area/Main/Exploration">000057</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="eng">AC thermal measurements were made on indium nanoparticles in the dielectric porous host Vycor in the temperature range of 1.4 K to 10 K. The width of the superconducting transition and the size of the specific heat discontinuity at the transition were the same as for bulk indium, indicating that thermal fluctuations are negligible and that the indium particles are moderately coupled. The heat transfer process was studied via the frequency dependence of the thermal response. The response changes dramatically when the indium nanoparticles can no longer follow the driving heater. The temperature dependence of the indium system thermal response time can be estimated from the data. Using a model which considers only electronic thermal conduction, we find a temperature-independent (for T>Tc) electronic mean free path of 1 nm, consistent with resistivity and critical field data.</div></front></TEI><mods xsi:schemaLocation="http://www.loc.gov/mods/v3 file:///applis/istex/home/loadistex/home/etc/xsd/mods.xsd" version="3.4" istexId="df8761631602f50246b6d217441eadd1aec0724a"><titleInfo lang="eng"><title>Frequency-dependent thermal response of indium nanoparticles in porous glass</title></titleInfo><name type="personal"><namePart type="given">F.</namePart><namePart type="family">Dong</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Department of Physics, Boston College, 02167, Chestnut Hill, MA, USA</affiliation></name><name type="personal"><namePart type="given">M. J.</namePart><namePart type="family">Graf</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Department of Physics, Boston College, 02167, Chestnut Hill, MA, USA</affiliation></name><name type="personal"><namePart type="given">T. E.</namePart><namePart type="family">Huber</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>Department of Physics, Polytechnic University, 11201, Brooklyn, NY, USA</affiliation></name><name type="personal"><namePart type="given">C. I.</namePart><namePart type="family">Huber</namePart><role><roleTerm type="text">author</roleTerm></role><affiliation>National Science Foundation, 22230, Arlington, VA, USA</affiliation></name><typeOfResource>text</typeOfResource><genre>Mesoscopic Systems</genre><genre>Original Paper</genre><originInfo><publisher>Kluwer Academic Publishers-Plenum Publishers, New York</publisher><dateValid encoding="w3cdtf">2007-02-01</dateValid><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="eng">AC thermal measurements were made on indium nanoparticles in the dielectric porous host Vycor in the temperature range of 1.4 K to 10 K. The width of the superconducting transition and the size of the specific heat discontinuity at the transition were the same as for bulk indium, indicating that thermal fluctuations are negligible and that the indium particles are moderately coupled. The heat transfer process was studied via the frequency dependence of the thermal response. The response changes dramatically when the indium nanoparticles can no longer follow the driving heater. The temperature dependence of the indium system thermal response time can be estimated from the data. Using a model which considers only electronic thermal conduction, we find a temperature-independent (for T>Tc) electronic mean free path of 1 nm, consistent with resistivity and critical field data.</abstract><relatedItem type="series"><titleInfo type="abbreviated"><title>Czech J Phys</title></titleInfo><titleInfo><title>Czechoslovak Journal of Physics</title><partNumber>Year: 1996</partNumber><partNumber>Volume: 46</partNumber><partNumber>Number: Suppl. 4</partNumber><partName lang="eng">Proceedings of the 21st International Conference on Low Temperature Physics, Prague, August 8–14, 1996, Part S4 - Low temperature properties of solids I</partName></titleInfo><genre>Archive Journal</genre><originInfo><dateIssued encoding="w3cdtf">1996-04-01</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><subject usage="primary"><topic>Physics</topic><topic>Physics, general</topic><topic>Nuclear Physics, Heavy Ions, Hadrons</topic></subject><identifier type="issn">0011-4626</identifier><identifier type="issn">Electronic: 1572-9486</identifier><identifier type="matrixNumber">10582</identifier><identifier type="local">IssueArticleCount: 293</identifier><recordInfo><recordOrigin>Institute of Physics, Acad. 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CR, 1996</recordOrigin><recordIdentifier>10582_1996_Article_BF02571175.pdf</recordIdentifier></recordInfo></mods></record>Pour manipuler ce document sous Unix (Dilib)
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