The thermal diffusivity of molecular cryocrystals
Low-temperature thermal diffusivity of molecular cryocrystals (O2, N2, CO, N2O and CO2) has been investigated and some anomalies were found. The thermal diffusivity of these crystals vary by more than 4–6 orders of the magnitude in the temperature range from 1 K up to their triple points. The therma...
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| Veröffentlicht in: | Low temperature physics (Woodbury, N.Y.) N.Y.), 2019-03, Vol.45 (3), p.343-346 |
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| container_title | Low temperature physics (Woodbury, N.Y.) |
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| creator | Sumarokov, V. V. Jeżowski, A. Stachowiak, P. Freiman, Yu. A. |
| description | Low-temperature thermal diffusivity of molecular cryocrystals (O2, N2, CO, N2O and CO2) has been investigated and some anomalies were found. The thermal diffusivity of these crystals vary by more than 4–6 orders of the magnitude in the temperature range from 1 K up to their triple points. The thermal diffusivity displays jumps at the phase transition points. It has been found that the thermal diffusivity of solid oxygen is nonmonotonic. Below 4 K, the temperature dependence shows a plateau which is due to the fact that both the heat capacity and the thermal conductivity have the cubic temperature dependence in this temperature range. For the cryocrystals of the nitrogen group, a similar plateau is shifted to lower temperatures. The temperature dependence of the equalization time for these crystals is studied. |
| doi_str_mv | 10.1063/1.5090093 |
| format | Article |
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The temperature dependence of the equalization time for these crystals is studied.</description><identifier>ISSN: 1063-777X</identifier><identifier>EISSN: 1090-6517</identifier><identifier>DOI: 10.1063/1.5090093</identifier><identifier>CODEN: LTPHEG</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Anomalies ; Diffusivity ; Equalization ; Phase transitions ; Temperature ; Temperature dependence ; Thermal conductivity ; Thermal diffusivity ; Time dependence ; Transition points</subject><ispartof>Low temperature physics (Woodbury, N.Y.), 2019-03, Vol.45 (3), p.343-346</ispartof><rights>Author(s)</rights><rights>2019 Author(s). 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A.</creatorcontrib><title>The thermal diffusivity of molecular cryocrystals</title><title>Low temperature physics (Woodbury, N.Y.)</title><description>Low-temperature thermal diffusivity of molecular cryocrystals (O2, N2, CO, N2O and CO2) has been investigated and some anomalies were found. The thermal diffusivity of these crystals vary by more than 4–6 orders of the magnitude in the temperature range from 1 K up to their triple points. The thermal diffusivity displays jumps at the phase transition points. It has been found that the thermal diffusivity of solid oxygen is nonmonotonic. Below 4 K, the temperature dependence shows a plateau which is due to the fact that both the heat capacity and the thermal conductivity have the cubic temperature dependence in this temperature range. For the cryocrystals of the nitrogen group, a similar plateau is shifted to lower temperatures. The temperature dependence of the equalization time for these crystals is studied.</description><subject>Anomalies</subject><subject>Diffusivity</subject><subject>Equalization</subject><subject>Phase transitions</subject><subject>Temperature</subject><subject>Temperature dependence</subject><subject>Thermal conductivity</subject><subject>Thermal diffusivity</subject><subject>Time dependence</subject><subject>Transition points</subject><issn>1063-777X</issn><issn>1090-6517</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqdkE9LxDAQxYMouK4e_AYFTwpdZ5omaY-y-A8WvKzgLcQ0Ybu0mzVJF_rtzdIF7x6G92B-vOENIbcICwROH3HBoAao6RmZYXI5ZyjOj57TXAjxdUmuQtgCYNrWM4LrjcnixvhedVnTWjuE9tDGMXM2611n9NApn2k_ujQhqi5ckwubxNycdE4-X57Xy7d89fH6vnxa5ZoyEXOhtWg0KFaVJWfWWkFRI6pSFKArDSXjjWUFr4sCGqoMNyDqhuG35hSpADond1Pu3rufwYQot27wu3RSFiiqCqu6xETdT5T2LgRvrNz7tld-lAjyWFqiPH0ksQ8TG3QbVWzd7n_wwfk_UO4bS38BIjltig</recordid><startdate>201903</startdate><enddate>201903</enddate><creator>Sumarokov, V. 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A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-7cc7dc0a584465fff731c11a4720c8c0456df5269220d3ae6e079d51bc6313703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anomalies</topic><topic>Diffusivity</topic><topic>Equalization</topic><topic>Phase transitions</topic><topic>Temperature</topic><topic>Temperature dependence</topic><topic>Thermal conductivity</topic><topic>Thermal diffusivity</topic><topic>Time dependence</topic><topic>Transition points</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sumarokov, V. V.</creatorcontrib><creatorcontrib>Jeżowski, A.</creatorcontrib><creatorcontrib>Stachowiak, P.</creatorcontrib><creatorcontrib>Freiman, Yu. 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Below 4 K, the temperature dependence shows a plateau which is due to the fact that both the heat capacity and the thermal conductivity have the cubic temperature dependence in this temperature range. For the cryocrystals of the nitrogen group, a similar plateau is shifted to lower temperatures. The temperature dependence of the equalization time for these crystals is studied.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5090093</doi><tpages>4</tpages></addata></record> |
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| identifier | ISSN: 1063-777X |
| ispartof | Low temperature physics (Woodbury, N.Y.), 2019-03, Vol.45 (3), p.343-346 |
| issn | 1063-777X 1090-6517 |
| language | eng |
| recordid | cdi_proquest_journals_2178818941 |
| source | AIP Journals Complete |
| subjects | Anomalies Diffusivity Equalization Phase transitions Temperature Temperature dependence Thermal conductivity Thermal diffusivity Time dependence Transition points |
| title | The thermal diffusivity of molecular cryocrystals |
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