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Magnetic damping in...
Magnetic damping in sputter-deposited Co2MnGe Heusler compounds with A2, B2, and L2(1) orders : Experiment and theory
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- Shaw, Justin M. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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- Delczeg-Czirjak, Erna K. (författare)
- Uppsala universitet,Materialteori
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- Edwards, Eric R. J. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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- Kvashnin, Yaroslav (författare)
- Uppsala universitet,Materialteori
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- Thonig, Danny, 1986- (författare)
- Uppsala universitet,Materialteori
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- Schoen, Martin A. W. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States; Department of Physics, University of Regensburg, Regensburg, Germany,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.;Univ Regensburg, Dept Phys, Regensburg, Germany.
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- Pufall, Matt (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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- Schneider, Michael L. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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- Silva, Thomas J. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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- Karis, Olof (författare)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Rice, Katherine P. (författare)
- CAMECA Instruments, Madison WI, United States,CAMECA Instruments, Madison, WI 53711 USA.
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- Eriksson, Olle, 1960- (författare)
- Uppsala universitet,Örebro universitet,Institutionen för naturvetenskap och teknik,Department of Physics and Astronomy, University Uppsala, Uppsala, Sweden,Materialteori,Örebro Univ, Sch Sci & Technol, Örebro, Sweden.
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- Nembach, Hans T. (författare)
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States,NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA.
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Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder CO, United States NIST, Quantum Electromagnet Div, Boulder, CO 80305 USA (creator_code:org_t)
- American Physical Society, 2018
- 2018
- Engelska.
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Ingår i: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 97:9
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We show that very low values of the magnetic damping parameter can be achieved in sputter deposited polycrystalline films of Co2MnGe annealed at relatively low temperatures ranging from 240 degrees C to 400 degrees C. Damping values as low as 0.0014 are obtained with an intrinsic value of 0.0010 after spin-pumping contributions are considered. Of importance to most applications is the low value of inhomogeneous linewidth that yields measured linewidths of 1.8 and 5.1 mT at 10 and 40 GHz, respectively. The damping parameter monotonically decreases as the B2 order of the films increases. This trend is reproduced and explained by ab initio calculations of the electronic structure and damping parameter. Here, the damping parameter is calculated as the structure evolves from A2 to B2 to L2(1) orders. The largest decrease in the damping parameter occurs during the A2 to B2 transition as the half-metallic phase becomes established.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Shaw, Justin M.
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Delczeg-Czirjak, ...
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Edwards, Eric R. ...
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Kvashnin, Yarosl ...
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Thonig, Danny, 1 ...
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Schoen, Martin A ...
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Pufall, Matt
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Schneider, Micha ...
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Silva, Thomas J.
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Karis, Olof
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Rice, Katherine ...
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Eriksson, Olle, ...
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Nembach, Hans T.
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