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Vortex dynamics for...
Vortex dynamics for in- and out-of-plane magnetic fields in oxygen deficient single crystals of YBa2Cu3O7-delta
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- Lundqvist, Björn (författare)
- KTH,Fysik,Fasta tillståndets fysik
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- Rapp, Östen (författare)
- KTH,Fysik,Fasta tillståndets fysik
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- Andersson, Magnus (författare)
- KTH,Fysik,Fasta tillståndets fysik
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(creator_code:org_t)
- 2000
- 2000
- Engelska.
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Ingår i: Physica. B, Condensed matter. - 0921-4526 .- 1873-2135. ; 284:Part. 1, s. 705-706
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The resistive transition into a glassy vortex state in oxygen deficient single crystals of YBa2Cu3O7-delta (YBCO) has been studied for magnetic fields 0 less than or equal to B less than or equal to 12 T along the crystallographic c-axis, parallel to the ab plane, and also with a small misalignment of 1 degrees from the ab plane. Angular sweeps of the magnetic field reveal a sharp dip in the resistivity for B \textbackslash\textbackslash ab, which is attributed to intrinsic pinning of vortices between the planes. For Bile the vortex glass line is well described by B-g(T)= B-0[(1 - T/T-c)/(T/T-c)](alpha), where B-0 is anisotropy dependent and alpha approximate to 1.0-1.2. For B \textbackslash\textbackslash ab the behaviour is significantly different, and at high magnetic fields a change to a field-independent vortex solid-to-liquid transition is observed. This behaviour disappears for small misalignments between B and ab.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- intrinsic pinning
- oxygen deficiency
- YBaCuO
- vortex dynamics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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