Electron–lattice coupling after high-energy deposition in aluminum
This paper presents an analysis of the parameters of highly-excited electron subsystem of aluminum, appearing e.g. after swift heavy ion impact or laser pulse irradiation. For elevated electron temperatures, the electron heat capacity and the screening parameter are evaluated. The electron–phonon ap...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-07, Vol.354, p.220-225 |
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| container_title | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms |
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| creator | Gorbunov, S.A. Medvedev, N.A. Terekhin, P.N. Volkov, A.E. |
| description | This paper presents an analysis of the parameters of highly-excited electron subsystem of aluminum, appearing e.g. after swift heavy ion impact or laser pulse irradiation. For elevated electron temperatures, the electron heat capacity and the screening parameter are evaluated. The electron–phonon approximation of electron–lattice coupling is compared with its precise formulation based on the dynamic structure factor (DSF) formalism. The DSF formalism takes into account collective response of a lattice to excitation including all possible limit cases of this response. In particular, it automatically provides realization of electron–phonon coupling as the low-temperature limit, while switching to the plasma-limit for high electron temperatures. Aluminum is chosen as a good model system for illustration of the presented methodology. |
| doi_str_mv | 10.1016/j.nimb.2014.11.053 |
| format | Article |
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For elevated electron temperatures, the electron heat capacity and the screening parameter are evaluated. The electron–phonon approximation of electron–lattice coupling is compared with its precise formulation based on the dynamic structure factor (DSF) formalism. The DSF formalism takes into account collective response of a lattice to excitation including all possible limit cases of this response. In particular, it automatically provides realization of electron–phonon coupling as the low-temperature limit, while switching to the plasma-limit for high electron temperatures. 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Aluminum is chosen as a good model system for illustration of the presented methodology.</description><subject>Aluminum</subject><subject>Beam interactions</subject><subject>Dynamic-structure factor</subject><subject>Electron temperature</subject><subject>Electron-lattice coupling</subject><subject>Formalism</subject><subject>Ion impact</subject><subject>Ion track</subject><subject>Joining</subject><subject>Laser spot</subject><subject>Mathematical models</subject><subject>Specific heat</subject><issn>0168-583X</issn><issn>1872-9584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kM9KAzEQh4MoWKsv4GmPXnbNZP-DF6mtCgUvCt5CNjvbpuwma5IVevMdfEOfxJR6di4Dw-8bZj5CroEmQKG43SVaDU3CKGQJQELz9ITMoCpZXOdVdkpmIVTFeZW-n5ML53Y0VJ7mM_Kw7FF6a_TP13cvvFcSI2mmsVd6E4nOo422arONUaPd7KMWR-OUV0ZHSkeinwalp-GSnHWid3j11-fkbbV8XTzF65fH58X9OpZZVvoYsC1pIeuMsiYXjZB13TUASLuiaCRjApnssGhTwVoQAimTLcUcRRGGGI6fk5vj3tGajwmd54NyEvteaDST41DWKatZRdMQZceotMY5ix0frRqE3XOg_KCM7_hBGT8o4wA86AjQ3RHC8MSnQsudVKgltsoGS7w16j_8FyBQd_A</recordid><startdate>20150701</startdate><enddate>20150701</enddate><creator>Gorbunov, S.A.</creator><creator>Medvedev, N.A.</creator><creator>Terekhin, P.N.</creator><creator>Volkov, A.E.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150701</creationdate><title>Electron–lattice coupling after high-energy deposition in aluminum</title><author>Gorbunov, S.A. ; Medvedev, N.A. ; Terekhin, P.N. ; Volkov, A.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-1ed706c9402b5abac99fb11e0f66bc22ae2cfe6d3a2d1aae02cd0e5ea6e6de583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Aluminum</topic><topic>Beam interactions</topic><topic>Dynamic-structure factor</topic><topic>Electron temperature</topic><topic>Electron-lattice coupling</topic><topic>Formalism</topic><topic>Ion impact</topic><topic>Ion track</topic><topic>Joining</topic><topic>Laser spot</topic><topic>Mathematical models</topic><topic>Specific heat</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gorbunov, S.A.</creatorcontrib><creatorcontrib>Medvedev, N.A.</creatorcontrib><creatorcontrib>Terekhin, P.N.</creatorcontrib><creatorcontrib>Volkov, A.E.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Nuclear instruments & methods in physics research. 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| ispartof | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2015-07, Vol.354, p.220-225 |
| issn | 0168-583X 1872-9584 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aluminum Beam interactions Dynamic-structure factor Electron temperature Electron-lattice coupling Formalism Ion impact Ion track Joining Laser spot Mathematical models Specific heat |
| title | Electron–lattice coupling after high-energy deposition in aluminum |
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