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- W2890499046 abstract "We show that very low values of the magnetic damping parameter can be achieved in sputter deposited polycrystalline films of $mathrm{C}{mathrm{o}}_{2}mathrm{MnGe}$ annealed at relatively low temperatures ranging from 240 ifmmode^circelsetextdegreefi{}C to 400 ifmmode^circelsetextdegreefi{}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 $L{2}_{1}$ orders. The largest decrease in the damping parameter occurs during the $A2$ to $B2$ transition as the half-metallic phase becomes established." @default.
- W2890499046 created "2018-09-27" @default.
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- W2890499046 date "2018-03-19" @default.
- W2890499046 modified "2023-10-16" @default.
- W2890499046 title "Magnetic damping in sputter-deposited <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi mathvariant=normal>C</mml:mi><mml:msub><mml:mi mathvariant=normal>o</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>MnGe</mml:mi></mml:mrow></mml:math> Heusler compounds with <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mi>A</mml:mi><mml:mn>2</mml:mn><mml:mo>,</mml:mo><mml:mi>B</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:math> , and <mml:math xmlns:mml=…" @default.
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- W2890499046 doi "https://doi.org/10.1103/physrevb.97.094420" @default.
- W2890499046 hasPublicationYear "2018" @default.
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