DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kyeong Dong | ko |
dc.contributor.author | Kim, Ji-Wan | ko |
dc.contributor.author | Jeong, JW | ko |
dc.contributor.author | Kim, DH | ko |
dc.contributor.author | Shin, Sung-Chul | ko |
dc.contributor.author | Hong, KH | ko |
dc.contributor.author | Lee, Yong-Soo | ko |
dc.contributor.author | Nam, Chang Hee | ko |
dc.contributor.author | Son, MH | ko |
dc.contributor.author | Hwang, SW | ko |
dc.date.accessioned | 2009-12-03T06:03:45Z | - |
dc.date.available | 2009-12-03T06:03:45Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-12 | - |
dc.identifier.citation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.49, pp.2402 - 2407 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | http://hdl.handle.net/10203/14084 | - |
dc.description.abstract | We report a femtosecond pump-probe magneto-optical Kerr effect (MOKE) microscopic system enabling the study of vectorial spin dynamics with submicron spatial resolution using an 11-fs pulsed laser source. We applied the system to investigate the spin precessional motion of a patterned disk (2.8 mu m x 3.0 mu m x 50 nm) of permalloy placed in an in-plane biasing magnetic-field. The vector components of the spins perpendicular to the field's direction showed a phase difference of about pi/2, which represents an elliptic motion in the magnetic phase trajectory. A numerical calculation utilizing the Stoner model of the Landau-Lifshitz-Gilbert equation yielded a damping parameter of alpha = 0.016. A theoretical simulation with the shape of the magnetic field pulse, considering surface recombination of the photoconductive switch and multiple reflections of the waveguide, accurately predict the experimental observation of vectorial precessional motion. | - |
dc.description.sponsorship | This work was supported through the Creative Research Initiatives Project and the Cavendish-Korea Advanced Institute of Science and Technology (KAIST) Research Cooperation Project of the Korea Ministry of Science and Technology and par- tially by the Pure Basic Science Research Program of the Korea Research Foundation. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.title | Femtosecond pump-probe MOKE microscopy for an ultrafast spin dynamics study | - |
dc.type | Article | - |
dc.identifier.wosid | 000242916500030 | - |
dc.identifier.scopusid | 2-s2.0-33846550589 | - |
dc.type.rims | ART | - |
dc.citation.volume | 49 | - |
dc.citation.beginningpage | 2402 | - |
dc.citation.endingpage | 2407 | - |
dc.citation.publicationname | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.contributor.localauthor | Shin, Sung-Chul | - |
dc.contributor.localauthor | Nam, Chang Hee | - |
dc.contributor.nonIdAuthor | Jeong, JW | - |
dc.contributor.nonIdAuthor | Kim, DH | - |
dc.contributor.nonIdAuthor | Son, MH | - |
dc.contributor.nonIdAuthor | Hwang, SW | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | precession dynamics | - |
dc.subject.keywordAuthor | time-resolved magneto-optical Kerr effect | - |
dc.subject.keywordAuthor | vectorial MOKE microscopy | - |
dc.subject.keywordPlus | MAGNETIZATION REVERSAL | - |
dc.subject.keywordPlus | VECTOR | - |
dc.subject.keywordPlus | FILMS | - |
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