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Direct light–induced spin transfer between different elements in a spintronic Heusler material via femtosecond laser excitation

Tengdin, Phoebe (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
Gentry, Christian (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
Blonsky, Adam (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
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Zusin, Dmitriy (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
Gerrity, Michael (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
Hellbrück, Lukas (författare)
Research Center OPTIMAS, University of Kaiserslautern, Kaiserslautern, Germany,Univ Kaiserslautern, Res Ctr OPTIMAS, Erwin Schroedinger Str 46, D-67663 Kaiserslautern, Germany
Hofherr, Moritz (författare)
Research Center OPTIMAS, University of Kaiserslautern, Kaiserslautern, Germany,Univ Kaiserslautern, Res Ctr OPTIMAS, Erwin Schroedinger Str 46, D-67663 Kaiserslautern, Germany
Shaw, Justin (författare)
Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA
Kvashnin, Yaroslav (författare)
Uppsala universitet,Materialteori
Koumpouras, Konstantinos (författare)
Luleå tekniska universitet,Materialvetenskap,Lulea Univ, Dept Engn Sci & Math, SE-E186, Lulea, Sweden
Arora, Monika (författare)
Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA
Nembach, Hans (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA; Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA;NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA
Silva, Tom J. (författare)
Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA
Mathias, Stefan (författare)
Georg-August-Universität Göttingen, I. Physikalisches Institut, Göttingen, Germany,Georg August Univ Gottingen, Phys Inst 1, Friedrich Hund Pl 1, D-37077 Gottingen, Germany
Aeschlimann, Martin (författare)
Research Center OPTIMAS, University of Kaiserslautern, Kaiserslautern, Germany,Univ Kaiserslautern, Res Ctr OPTIMAS, Erwin Schroedinger Str 46, D-67663 Kaiserslautern, Germany
Kapteyn, Henry C. (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA
Thonig, Danny, 1986- (författare)
Uppsala universitet,Örebro universitet,Institutionen för naturvetenskap och teknik,Department of Physics and Astronomy, University Uppsala, Uppsala, Sweden; School of Science and Technology, Örebro University, Örebro, Sweden,Materialteori,Orebro Univ, Sch Sci & Technol, SE-70182 Orebro, Sweden
Koumpouras, Konstantinos (författare)
Luleå tekniska universitet,Materialvetenskap
Eriksson, Olle, 1960- (författare)
Uppsala universitet,Örebro universitet,Institutionen för naturvetenskap och teknik,Department of Physics and Astronomy, University Uppsala, Uppsala, Sweden; School of Science and Technology, Örebro University, Örebro, Sweden,Materialteori,Orebro Univ, Sch Sci & Technol, SE-70182 Orebro, Sweden
Murnane, Margaret M. (författare)
Department of Physics and JILA, University of Colorado and NIST, Boulder, CO, USA,Univ Colorado, Dept Phys, Boulder, CO 80309 USA;Univ Colorado, JILA, Boulder, CO 80309 USA;NIST, Boulder, CO 80309 USA
Delczeg-Czirjak, Erna Krisztina (författare)
Uppsala universitet,Materialteori
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 (creator_code:org_t)
American Association for the Advancement of Science, 2020
2020
Engelska.
Ingår i: Science Advances. - : American Association for the Advancement of Science. - 2375-2548. ; 6:3
Relaterad länk:
https://advances.sci...
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https://doi.org/10.1...
https://uu.diva-port... (primary) (Raw object)
https://urn.kb.se/re...
https://doi.org/10.1...
https://urn.kb.se/re...
https://urn.kb.se/re...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Heusler compounds are exciting materials for future spintronics applications because they display a wide range of tunable electronic and magnetic interactions. Here, we use a femtosecond laser to directly transfer spin polarization from one element to another in a half-metallic Heusler material, Co2MnGe. This spin transfer initiates as soon as light is incident on the material, demonstrating spatial transfer of angular momentum between neighboring atomic sites on time scales < 10 fs. Using ultrafast high harmonic pulses to simultaneously and independently probe the magnetic state of two elements during laser excitation, we find that the magnetization of Co is enhanced, while that of Mn rapidly quenches. Density functional theory calculations show that the optical excitation directly transfers spin from one magnetic sublattice to another through preferred spin-polarized excitation pathways. This direct manipulation of spins via light provides a path toward spintronic devices that can operate on few-femtosecond or faster time scales.

Ämnesord

NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Applied Physics
Tillämpad fysik

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