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Magnetic detonation...
Magnetic detonation structure in crystals of nanomagnets controlled by thermal conduction and volume viscosity
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- Jukimenko, Olexy (författare)
- Umeå universitet,Institutionen för fysik
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- Modestov, Mikhail (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita)
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- Marklund, Mattias, 1970 (författare)
- Umeå universitet,Institutionen för fysik,Chalmers, Dept Appl Phys, SE-41296 Gothenburg, Sweden
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- Bychkov, Vitaly (författare)
- Umeå universitet,Institutionen för fysik
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X .- 2469-9950 .- 2469-9969. ; 91:9
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Abstract
Ämnesord
Stäng
- Experimentally detected ultrafast spin avalanches spreading in crystals of molecular (nano) magnets [Decelle et al., Phys. Rev. Lett. 102, 027203 (2009)] have recently been explained in terms of magnetic detonation [Modestov et al., Phys. Rev. Lett. 107, 207208 (2011)]. Here magnetic detonation structure is investigated by taking into account transport processes of the crystals such as thermal conduction and volume viscosity. The transport processes result in smooth profiles of the most important thermodynamical crystal parameters, temperature, density, and pressure, all over the magnetic detonation front, including the leading shock, which is one of the key regions of magnetic detonation. In the case of zero volume viscosity, thermal conduction leads to an isothermal discontinuity instead of the shock, for which temperature is continuous while density and pressure experience jump. It is also demonstrated that the thickness of the magnetic detonation front may be controlled by applying the transverse-magnetic field, which is important for possible experimental observations of magnetic 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)
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