T
Tom H. Johansen
Researcher at University of Oslo
Publications - 343
Citations - 6957
Tom H. Johansen is an academic researcher from University of Oslo. The author has contributed to research in topics: Superconductivity & Magnetic flux. The author has an hindex of 43, co-authored 341 publications receiving 6411 citations. Previous affiliations of Tom H. Johansen include Norwegian Academy of Science and Letters & University of Wollongong.
Papers
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Instability of the magnetization reversal front in superconductors with a nonlinear anisotropic current-voltage characteristic
Alexander L. Rakhmanov,L. M. Fisher,A. A. Levchenko,V. A. Yampol'skii,M. Baziljevich,Tom H. Johansen +5 more
TL;DR: In this paper, the instability of a magnetic flux flow in a system of vortices and antivortices in superconductors with a power (exponent m) anisotropic currentvoltage characteristic was studied theoretically.
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Dendritic flux avalanches in a superconducting MgB2 tape
Thomas Qureishy,Carlos Laliena,Elena Martínez,Atle Jorstad Qviller,J. I. Vestgården,J. I. Vestgården,Tom H. Johansen,Tom H. Johansen,Rafael Navarro,Pavlo Mikheenko +9 more
TL;DR: Qureishy et al. as discussed by the authors proposed a superconducting MgB2 tape with endritic flux avalanches, and showed that these avalanches can be triggered by superconductors.
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Magnetic flux channelling in YBa2Cu3O7-δ films grown by a chemical solution deposition technique on vicinal and non-vicinal substrates
Thomas Qureishy,Yue Zhao,Yan Xu,J. I. Vestgården,Tom H. Johansen,Jean-Claude Grivel,Hongli Suo,Pavlo Mikheenko +7 more
TL;DR: In this paper, a channel-like reduction and corresponding enhancement of critical current density were demonstrated in a sample deposited on vicinal substrate, which, as a consequence, demonstrates global temperature-dependent in-plane anisotropy with an anisotropic ratio up to 2.4.
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Magneto-optical investigations of multifilamentary Bi-2223 tapes
Michael Rudolf Koblischka,Tom H. Johansen,B.H. Larsen,Niels Hessel Andersen,H. Wu,P. Skov-Hansen,M.D. Bentzon,P. Vase +7 more
TL;DR: In this paper, the flux distribution of multifilamentary Bi-2223 tapes with a varying number of filaments (14 to 55 filaments) was investigated by magneto-optic imaging at various temperatures (10 ≤ T ≤ 77 K) and in different field orientations (field applied perpendicular to the tape surface and perpendicular to a cross section of the tape).
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Evidence of Rouse-like dynamics in magnetically ratchetting colloidal chains
TL;DR: In this paper, the collective dynamics of an ensemble of paramagnetic particles organized as a 1D chain and driven by an a-thermal ratchet effect on a uniaxial garnet film was studied.