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Magnetic asymmetry ...
Magnetic asymmetry around the 3p absorption edge in Fe and Ni
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- Locht, Inka L. M., 1986- (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Radboud University,materials theory
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- Jana, Somnath (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Kvashnin, Yaroslav O. (author)
- Uppsala universitet,Institutionen för fysik och astronomi,materials theory
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show more...
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- Knut, Ronny (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Di Marco, Igor, 1978- (author)
- Uppsala universitet,Institutionen för fysik och astronomi,materials theory
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- Chimata, Raghuveer (author)
- Uppsala universitet,Institutionen för fysik och astronomi,materials theory
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- Malik, Rameez S. (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Ahlberg, Martina (author)
- University of Gothenburg
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- Battiato, Marco (author)
- Vienna University of Technology
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- Rusz, Jan (author)
- Uppsala universitet,Institutionen för fysik och astronomi,materials theory
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- Yaresko, Alexander N. (author)
- Max Planck Institute for solid state research
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- Stefanuik, Robert (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Söderström, Johan (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Silva, Thomas (author)
- National Institute of Standards and Technology
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- Åkerman, Johan (author)
- University of Gothenburg
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- Nembach, Hans (author)
- National Institute of Standards and Technology
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- Shaw, Justin (author)
- National Institute of Standards and Technology
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- Karis, Olof (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Molecular and Condensed Matter Physics
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- Eriksson, Olle (author)
- materials theory
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(creator_code:org_t)
- English.
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
Close
- This work is a joint theoretical and experimental study of the relation between the magneto- optical response of a material in the sub-picosecond timescale and its instantaneous magnetisation. We perform pump-probe experiments in the transverse magneto-optical Kerr effect (T-MOKE) geometry. We measure the magnetic asymmetry of elemental Fe and Ni before and after the laser pulse. The observed differences between the magnetic asymmetry curves for various photon energies suggest that the relation between asymmetry and sample magnetization is more complex than a simple proportionality. Further insight is obtained by means of theoretical simulations based on density-functional theory. Our calculations show that non-linear effects in the asymmetry are most prominent at energies corresponding to the absorption edge and that the proportionality is recovered outside of this region. In conclusion, our experimental and theoretical results emphasize the need of including the complex relation between asymmetry and magnetization in the interpretation of ultrafast magnetization experiments in terms of microscopic properties.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- T-MOKE
- ultrafast magnetization dynamics
- Fe
- iron
- Ni
- nikkel
- Fysik
- Physics
Publication and Content Type
- vet (subject category)
- ovr (subject category)
To the university's database
- By the author/editor
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Locht, Inka L. M ...
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Jana, Somnath
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Kvashnin, Yarosl ...
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Knut, Ronny
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Di Marco, Igor, ...
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Chimata, Raghuve ...
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show more...
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Malik, Rameez S.
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Ahlberg, Martina
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Battiato, Marco
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Rusz, Jan
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Yaresko, Alexand ...
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Stefanuik, Rober ...
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Söderström, Joha ...
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Silva, Thomas
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Åkerman, Johan
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Nembach, Hans
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Shaw, Justin
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Karis, Olof
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Eriksson, Olle
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- By the university
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Uppsala University