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Deviations from the...
Deviations from the extended London model at high magnetic fields in YBa2Cu3 O7
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- Campillo, E. (författare)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Bartkowiak, M. (författare)
- Helmholtz Association of German Research Centers
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- Riyat, R. (författare)
- University of Birmingham
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- Jellyman, E. (författare)
- University of Birmingham
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- Cameron, A. S. (författare)
- Dresden University of Technology
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- Holmes, A. T. (författare)
- European Spallation Source ERIC, Sweden
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- Prokhnenko, O. (författare)
- Helmholtz Association of German Research Centers
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- Stein, W. D. (författare)
- Helmholtz Association of German Research Centers
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- Erb, A. (författare)
- Walther-Meissner-Institut
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- Forgan, E. M. (författare)
- University of Birmingham
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- Blackburn, E. (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2022
- 2022
- Engelska.
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Ingår i: Physical Review B. - 2469-9950. ; 105:18
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report on the evolution with the magnetic field and the temperature of the vortex lattice (VL) in fully oxygenated YBa2Cu3O7 as studied by time-of-flight small-angle neutron scattering. Using the High Field Magnet/Extreme Environment Diractometer beamline at Helmholtz-Zentrum Berlin, we have obtained data up to 25.9 T - much higher than data available previously. Our VL structure results are consistent with the progressive suppression by the field of the superconductivity along the crystallographic b (CuO chain) direction and an accompanying shift of the nodal directions as the field is increased. The intensity of the diffracted signal reveals the spatial variation of magnetization caused by the VL (the "form factor"). Instead of a rapid falloff with the field, as seen in superconductors with smaller upper critical fields, we find that the form factor is almost constant with the field above ∼12 T. We speculate that this is due to Pauli paramagnetic effects.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Campillo, E.
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Bartkowiak, M.
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Riyat, R.
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Jellyman, E.
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Cameron, A. S.
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Holmes, A. T.
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visa fler...
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Prokhnenko, O.
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Stein, W. D.
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Erb, A.
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Forgan, E. M.
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Blackburn, E.
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visa färre...
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