Laser-Induced Demagnetization at Ultrashort Time Scales: Predictions of TDDFT
Time-dependent density functional theory (TDDFT) is implemented in an all electron solid-state code for the case of fully unconstrained noncollinear spins. We use this to study intense, short, laser pulse-induced demagnetization in bulk Fe, Co, Ni and find that demagnetization can take place on time...
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| Veröffentlicht in: | Journal of chemical theory and computation 2015-10, Vol.11 (10), p.4870-4874 |
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| container_issue | 10 |
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| container_title | Journal of chemical theory and computation |
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| creator | Krieger, K Dewhurst, J. K Elliott, P Sharma, S Gross, E. K. U |
| description | Time-dependent density functional theory (TDDFT) is implemented in an all electron solid-state code for the case of fully unconstrained noncollinear spins. We use this to study intense, short, laser pulse-induced demagnetization in bulk Fe, Co, Ni and find that demagnetization can take place on time scales of |
| doi_str_mv | 10.1021/acs.jctc.5b00621 |
| format | Article |
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We further show that it is possible to control the moment loss by tunable laser parameters, including frequency, duration, and intensity.</description><identifier>ISSN: 1549-9618</identifier><identifier>EISSN: 1549-9626</identifier><identifier>DOI: 10.1021/acs.jctc.5b00621</identifier><identifier>PMID: 26889518</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Demagnetization ; Density functional theory ; Iron ; Lasers ; Nickel ; Time ; Time dependence ; Tunable lasers</subject><ispartof>Journal of chemical theory and computation, 2015-10, Vol.11 (10), p.4870-4874</ispartof><rights>Copyright © 2015 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a435t-a3091c50059b4f31e9c05c024bf903e78439490c835d459d770f52b5a4c207a53</citedby><cites>FETCH-LOGICAL-a435t-a3091c50059b4f31e9c05c024bf903e78439490c835d459d770f52b5a4c207a53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.jctc.5b00621$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.jctc.5b00621$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>315,782,786,2769,27085,27933,27934,56747,56797</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26889518$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Krieger, K</creatorcontrib><creatorcontrib>Dewhurst, J. 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We further show that it is possible to control the moment loss by tunable laser parameters, including frequency, duration, and intensity.</description><subject>Demagnetization</subject><subject>Density functional theory</subject><subject>Iron</subject><subject>Lasers</subject><subject>Nickel</subject><subject>Time</subject><subject>Time dependence</subject><subject>Tunable lasers</subject><issn>1549-9618</issn><issn>1549-9626</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAURi0EoqWwMyGPDKRcv5KYDbUUkIpAop0tx3EgVR7Fdgb49aS0dENM9w7nfMNB6JzAmAAl19r48coEMxYZQEzJARoSwWUkYxof7n-SDtCJ9ysAxjhlx2hA4zSVgqRD9DTX3rrosck7Y3M8tbV-a2wov3Qo2wbrgJdVcNq_ty7gRVlb_Gp0Zf0NfnE2L82G8rgt8GI6nS1O0VGhK2_PdneElrO7xeQhmj_fP05u55HmTIRIM5DECAAhM14wYqUBYYDyrJDAbJJyJrkEkzKRcyHzJIFC0ExobigkWrARutzurl370VkfVF16Y6tKN7btvCIpFYIRwtn_aBInkBBO4x6FLWpc672zhVq7stbuUxFQm96q7602vdWud69c7Na7rLb5XvgN3ANXW-BHbTvX9F3-3vsGYieJgQ</recordid><startdate>20151013</startdate><enddate>20151013</enddate><creator>Krieger, K</creator><creator>Dewhurst, J. 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It is demonstrated that this form of demagnetization is a two-step process: excitation of a fraction of electrons followed by spin-flip transitions mediated by spin–orbit coupling of the remaining localized electrons. We further show that it is possible to control the moment loss by tunable laser parameters, including frequency, duration, and intensity.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>26889518</pmid><doi>10.1021/acs.jctc.5b00621</doi><tpages>5</tpages></addata></record> |
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| subjects | Demagnetization Density functional theory Iron Lasers Nickel Time Time dependence Tunable lasers |
| title | Laser-Induced Demagnetization at Ultrashort Time Scales: Predictions of TDDFT |
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