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- Unikandanunni, VivekStockholms universitet,Fysikum,Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden. (author)
Anisotropic ultrafast spin dynamics in epitaxial cobalt
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- AIP Publishing,2021
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:su-195051
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-195051URI
- https://doi.org/10.1063/5.0049692DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452134URI
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- Language:English
- Summary in:English
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Notes
- We investigate the ultrafast spin dynamics in an epitaxial hcp(11⎯⎯00) cobalt thin film. By performing pump-probe magneto-optical measurements with the magnetization along either the easy or hard magnetic axis, we determine the demagnetization and recovery time for the two axes. We observe an average of 33% slower dynamics along the easy magnetization axis, which we attribute to magneto-crystalline anisotropy of the electron-phonon coupling, supported by our ab initio calculations. This points toward an unambiguous and previously undisclosed role of anisotropic electron–lattice coupling in ultrafast magnetism.
Subject headings and genre
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- Anisotropy
- ultrafast
- epitaxial cobalt
- electron-phonon coupling
- demagnetization
- spin dynamics
- fysik
- Physics
Added entries (persons, corporate bodies, meetings, titles ...)
- Medapalli, RajasekharUniv Calif San Diego, Ctr Memory & Recording Res, San Diego, CA 92093 USA.;Natl Inst Technol, Sch Sci, Dept Phys, Tadepalligudem 534102, Andhra Pradesh, India. (author)
- Fullerton, Eric E.Univ Calif San Diego, Ctr Memory & Recording Res, San Diego, CA 92093 USA. (author)
- Carva, KarelCharles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, Karlovu 5, CZ-12116 Prague, Czech Republic. (author)
- Oppeneer, Peter M.Uppsala universitet,Materialteori(Swepub:uu)peopp623 (author)
- Bonetti, StefanoStockholms universitet,Fysikum,Ca' Foscari University of Venice, Italy,Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.;Ca Foscari Univ Venice, Dept Mol Sci & Nanosyst, I-30172 Venice, Italy.(Swepub:su)sbone (author)
- Stockholms universitetFysikum (creator_code:org_t)
Related titles
- In:Applied Physics Letters: AIP Publishing118:230003-69511077-3118
Internet link
- https://doi.org/10.1063/5.0049692Fulltext
- https://aip.scitation.org/doi/pdf/10.1063/5.0049692
- https://uu.diva-portal.org/smash/get/diva2:1592961/FULLTEXT01.pdffulltext:print
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-195051
- https://doi.org/10.1063/5.0049692
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452134
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