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Tunable damping, sa...
Tunable damping, saturation magnetization, and exchange stiffness of half-Heusler NiMnSb thin films
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- Dürrenfeld, Philipp (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Gothenburg Univ, Dept Phys, S-41296 Gothenburg, Sweden.
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- Gerhard, F. (author)
- Univ Wurzburg, Phys Inst EP3, D-97074 Wurzburg, Germany.
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- Chico, Jonathan (author)
- Uppsala universitet,Materialteori
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- Dumas, Randy K. (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Gothenburg Univ, Dept Phys, S-41296 Gothenburg, Sweden.;NanOsc AB, S-16440 Kista, Sweden.
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- Ranjbar, Mojtaba (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Gothenburg Univ, Dept Phys, S-41296 Gothenburg, Sweden.
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- Bergman, Anders (author)
- Uppsala universitet,Materialteori
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- Bergqvist, Lars (author)
- KTH,Materialfysik, MF,SeRC - Swedish e-Science Research Centre,KTH Royal Inst Technol, Mat & Nano Phys, Sch ICT, S-16440 Kista, Sweden.;Swedish e Sci Res Ctr SeRC, S-10044 Stockholm, Sweden.
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- Delin, Anna (author)
- Uppsala universitet,KTH,Materialfysik, MF,SeRC - Swedish e-Science Research Centre,Uppsala University, Sweden,Materialteori,KTH Royal Inst Technol, Mat & Nano Phys, Sch ICT, S-16440 Kista, Sweden.;Swedish e Sci Res Ctr SeRC, S-10044 Stockholm, Sweden.
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- Gould, C. (author)
- Univ Wurzburg, Phys Inst EP3, D-97074 Wurzburg, Germany.
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- Molenkamp, L. W. (author)
- Univ Wurzburg, Phys Inst EP3, D-97074 Wurzburg, Germany.
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- Åkerman, Johan, 1970 (author)
- KTH,Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Materialfysik, MF,University of Gothenburg, Sweden; NanOsc AB, Sweden,Gothenburg Univ, Dept Phys, S-41296 Gothenburg, Sweden.;NanOsc AB, S-16440 Kista, Sweden.;KTH Royal Inst Technol, Mat & Nano Phys, Sch ICT, S-16440 Kista, Sweden.
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(creator_code:org_t)
- American Physical Society, 2015
- 2015
- English.
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In: Physical Review B. - : American Physical Society. - 1098-0121 .- 1550-235X. ; 92:21
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Abstract
Subject headings
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- The half-metallic half-Heusler alloy NiMnSb is a promising candidate for applications in spintronic devices due to its low magnetic damping and its rich anisotropies. Here we use ferromagnetic resonance (FMR) measurements and calculations from first principles to investigate how the composition of the epitaxially grown NiMnSb influences the magnetodynamic properties of saturation magnetization M-S, Gilbert damping alpha, and exchange stiffness A. M-S and A are shown to have a maximum for stoichiometric composition, while the Gilbert damping is minimum. We find excellent quantitative agreement between theory and experiment for M-S and alpha. The calculated A shows the same trend as the experimental data but has a larger magnitude. In addition to the unique in-plane anisotropy of the material, these tunabilities of the magnetodynamic properties can be taken advantage of when employing NiMnSb films in magnonic devices.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- molecular-beam epitaxy
- ferromagnetic metals
- oscillator driven
- spin
- polarization
- alloy nimnsb
- excitation
- torque
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Dürrenfeld, Phil ...
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Gerhard, F.
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Chico, Jonathan
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Dumas, Randy K.
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Ranjbar, Mojtaba
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Bergman, Anders
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Bergqvist, Lars
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Delin, Anna
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Gould, C.
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Molenkamp, L. W.
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Åkerman, Johan, ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
- By the university
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University of Gothenburg
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Royal Institute of Technology
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Uppsala University