Reference : Scanning Hall probe microscopy of unconventional vortex patterns in the two-gap MgB2 sup...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/119429
Scanning Hall probe microscopy of unconventional vortex patterns in the two-gap MgB2 superconductor
English
Gutierrez, J. [Katholieke Universiteit Leuven - KUL > Physics and Astronomy > > >]
Raes, B. [Katholieke Universiteit Leuven - KUL > Physics and Astronomy > > >]
Silhanek, Alejandro mailto [Université de Liège - ULg > Département de physique > Physique de la matière condensée >]
Li, L.J. [Katholieke Universiteit Leuven - KUL > Physics and Astronomy > > >]
Zhigadlo, N.D. [ETH Zurich > Laboratory for Solid State Physics > > >]
Karpinski, J. [ETH Zurich > Laboratory for Solid State Physics > > >]
Tempere, J. [Universiteit Antwerpen - UA > TQC > > >]
Moshchalkov, V.V. [Katholieke Universiteit Leuven - KUL > Physics and Astronomy > > >]
22-Mar-2012
Physical Review. B : Condensed Matter
American Institute of Physics
85
094511
Yes (verified by ORBi)
International
0163-1829
New York
NY
[en] Type 1.5 superconductivity ; Two gaps superconductors
[en] The low magnetic field vortex patterns nucleation and evolution in a high-quality two-gap superconductor MgB2 single crystal have been investigated by low-temperature scanning Hall probe microscopy. Large areas have been imaged with single-vortex resolution while changing systematically the thermodynamic parameters for field and temperature. The obtained patterns have been studied and compared with those of a reference 2H-NbSe2 single crystal. We found that the observed vortex patterns in MgB2 (e.g., stripes, clusters) appear due to competing vortex-vortex interactions as suggested by the theory of type-1.5 superconductivity.
Researchers ; Professionals
http://hdl.handle.net/2268/119429
10.1103/PhysRevB.85.094511

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