Molecular dynamics investigation of the configuration and shape of helium clusters in tungsten
The stable configuration and shape of a helium cluster in tungsten are investigated with the molecular dynamics method. It is found that the configuration of the helium cluster tends to form a near-spherical polyhedron. At a high temperature, the Hen cluster for n < 100 has enough time to evolve...
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| Veröffentlicht in: | Nuclear fusion 2020-12, Vol.60 (12), p.126015 |
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| container_title | Nuclear fusion |
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| creator | Wang, Jinlong Guo, Zhichao Dang, Wenqiang Liu, Daping |
| description | The stable configuration and shape of a helium cluster in tungsten are investigated with the molecular dynamics method. It is found that the configuration of the helium cluster tends to form a near-spherical polyhedron. At a high temperature, the Hen cluster for n < 100 has enough time to evolve into a spherical structure even after coalescing between two helium clusters, while the large helium cluster could retain a rod-like or other shape for a long time. The formation mechanism of fuzz on tungsten surfaces is still unclear. Whether the shape of helium clusters is reasonable in simulations may have a significant effect on the formation of fuzz. Our results provide important references for Monte Carlo simulations. |
| doi_str_mv | 10.1088/1741-4326/abb147 |
| format | Article |
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It is found that the configuration of the helium cluster tends to form a near-spherical polyhedron. At a high temperature, the Hen cluster for n < 100 has enough time to evolve into a spherical structure even after coalescing between two helium clusters, while the large helium cluster could retain a rod-like or other shape for a long time. The formation mechanism of fuzz on tungsten surfaces is still unclear. Whether the shape of helium clusters is reasonable in simulations may have a significant effect on the formation of fuzz. Our results provide important references for Monte Carlo simulations.</description><identifier>ISSN: 0029-5515</identifier><identifier>EISSN: 1741-4326</identifier><identifier>DOI: 10.1088/1741-4326/abb147</identifier><identifier>CODEN: NUFUAU</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>helium cluster ; molecular dynamics simulation ; stable configuration ; tungsten</subject><ispartof>Nuclear fusion, 2020-12, Vol.60 (12), p.126015</ispartof><rights>2020 IAEA, Vienna</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-a4df6c6a32c4bad32823206f107f6acc8416392b57fbf56d654e581f23bfc2353</citedby><cites>FETCH-LOGICAL-c312t-a4df6c6a32c4bad32823206f107f6acc8416392b57fbf56d654e581f23bfc2353</cites><orcidid>0000-0003-4662-927X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1741-4326/abb147/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>314,780,784,27924,27925,53846,53893</link.rule.ids></links><search><creatorcontrib>Wang, Jinlong</creatorcontrib><creatorcontrib>Guo, Zhichao</creatorcontrib><creatorcontrib>Dang, Wenqiang</creatorcontrib><creatorcontrib>Liu, Daping</creatorcontrib><title>Molecular dynamics investigation of the configuration and shape of helium clusters in tungsten</title><title>Nuclear fusion</title><addtitle>NF</addtitle><addtitle>Nucl. Fusion</addtitle><description>The stable configuration and shape of a helium cluster in tungsten are investigated with the molecular dynamics method. It is found that the configuration of the helium cluster tends to form a near-spherical polyhedron. At a high temperature, the Hen cluster for n < 100 has enough time to evolve into a spherical structure even after coalescing between two helium clusters, while the large helium cluster could retain a rod-like or other shape for a long time. The formation mechanism of fuzz on tungsten surfaces is still unclear. Whether the shape of helium clusters is reasonable in simulations may have a significant effect on the formation of fuzz. Our results provide important references for Monte Carlo simulations.</description><subject>helium cluster</subject><subject>molecular dynamics simulation</subject><subject>stable configuration</subject><subject>tungsten</subject><issn>0029-5515</issn><issn>1741-4326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1LxDAQxYMouK7ePebmxbqZfLV7lMUvWPGiV0OaJt0s3bQkrbD_vS0VTyIMDPPm_YbhIXQN5A5IUawg55BxRuVKlyXw_AQtfqVTtCCErjMhQJyji5T2hAAHxhbo87VtrBkaHXF1DPrgTcI-fNnU-1r3vg24dbjfWWza4Hw9xFnUocJppzs7rXe28cMBm2ZIvY0Tj_sh1OMQLtGZ002yVz99iT4eH943z9n27ellc7_NDAPaZ5pXThqpGTW81BWjBWWUSAckd1IbU3CQbE1LkbvSCVlJwa0owFFWOkOZYEtE5rsmtilF61QX_UHHowKipnzUFIaawlBzPiNyOyO-7dS-HWIYH_zPfvOHPTglR4KOJQkI1VWOfQPGCXVp</recordid><startdate>202012</startdate><enddate>202012</enddate><creator>Wang, Jinlong</creator><creator>Guo, Zhichao</creator><creator>Dang, Wenqiang</creator><creator>Liu, Daping</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-4662-927X</orcidid></search><sort><creationdate>202012</creationdate><title>Molecular dynamics investigation of the configuration and shape of helium clusters in tungsten</title><author>Wang, Jinlong ; Guo, Zhichao ; Dang, Wenqiang ; Liu, Daping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-a4df6c6a32c4bad32823206f107f6acc8416392b57fbf56d654e581f23bfc2353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>helium cluster</topic><topic>molecular dynamics simulation</topic><topic>stable configuration</topic><topic>tungsten</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Jinlong</creatorcontrib><creatorcontrib>Guo, Zhichao</creatorcontrib><creatorcontrib>Dang, Wenqiang</creatorcontrib><creatorcontrib>Liu, Daping</creatorcontrib><collection>CrossRef</collection><jtitle>Nuclear fusion</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Jinlong</au><au>Guo, Zhichao</au><au>Dang, Wenqiang</au><au>Liu, Daping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular dynamics investigation of the configuration and shape of helium clusters in tungsten</atitle><jtitle>Nuclear fusion</jtitle><stitle>NF</stitle><addtitle>Nucl. Fusion</addtitle><date>2020-12</date><risdate>2020</risdate><volume>60</volume><issue>12</issue><spage>126015</spage><pages>126015-</pages><issn>0029-5515</issn><eissn>1741-4326</eissn><coden>NUFUAU</coden><abstract>The stable configuration and shape of a helium cluster in tungsten are investigated with the molecular dynamics method. It is found that the configuration of the helium cluster tends to form a near-spherical polyhedron. At a high temperature, the Hen cluster for n < 100 has enough time to evolve into a spherical structure even after coalescing between two helium clusters, while the large helium cluster could retain a rod-like or other shape for a long time. The formation mechanism of fuzz on tungsten surfaces is still unclear. Whether the shape of helium clusters is reasonable in simulations may have a significant effect on the formation of fuzz. Our results provide important references for Monte Carlo simulations.</abstract><pub>IOP Publishing</pub><doi>10.1088/1741-4326/abb147</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-4662-927X</orcidid></addata></record> |
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| ispartof | Nuclear fusion, 2020-12, Vol.60 (12), p.126015 |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | helium cluster molecular dynamics simulation stable configuration tungsten |
| title | Molecular dynamics investigation of the configuration and shape of helium clusters in tungsten |
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