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Anisotropic propert...
Anisotropic properties of spin avalanches in crystals of nanomagnets
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- Dion, Claude, 1970- (författare)
- Umeå universitet,Institutionen för fysik
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- Jukimenko, Olexy (författare)
- Umeå universitet,Institutionen för fysik
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- Modestov, Mikhai (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita)
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- Marklund, Mattias, 1970 (författare)
- Umeå universitet,Institutionen för fysik
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- Bychkov, Vitaly (författare)
- Umeå universitet,Institutionen för fysik
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(creator_code:org_t)
- American Physical Society, 2013
- 2013
- Engelska.
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Ingår i: Physical Review B - Condensed Matter and Materials Physics. - : American Physical Society. - 2469-9950 .- 2469-9969 .- 1098-0121 .- 1550-235X. ; 87:1
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Abstract
Ämnesord
Stäng
- Anisotropy effects for spin avalanches in crystals of nanomagnets are studied theoretically with the external magnetic field applied at an arbitrary angle to the easy axis. Starting with the Hamiltonian for a single nanomagnet in the crystal, two essential quantities characterizing spin avalanches are calculated: the activation and Zeeman energies. The calculation is performed numerically for a wide range of angles and analytical formulas are derived within the limit of small angles. The anisotropic properties of a single nanomagnet lead to anisotropic behavior of the magnetic deflagration speed. Modifications of the magnetic deflagration speed are investigated for different angles between the external magnetic field and the easy axis of the crystals. Anisotropic properties of magnetic detonation are also studied, which concern, first of all, the temperature behind the leading shock and the characteristic time of spin switching in the detonation.
Ämnesord
- 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)
Nyckelord
- relaxation
- mn12ac
- molecules
- magnetization
- state
- fysik
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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