2023
DOI: 10.3390/met13061140
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The Paramagnetic Meissner Effect (PME) in Metallic Superconductors

Abstract: The experimental data in the literature concerning the Paramagnetic Meissner Effect (PME) or also called Wohlleben effect are reviewed with the emphasis on the PME exhibited by metallic, s-wave superconductors. The PME was observed in field-cool cooling (FC-C) and field-cool warming (FC-W) m(T)-measurements on Al, Nb, Pb, Ta, in compounds such as, e.g., NbSe2, In-Sn, ZrB12, and others, and also in MgB2, the metallic superconductor with the highest transition temperature. Furthermore, samples with different sha… Show more

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Cited by 5 publications
(3 citation statements)
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“…However, for a superconductor with a particular granular morphology [52] and/or internal-void structure, the field penetration process can be much more sophisticated. A prominent example is the establishment of a paramagnetic Meissner (Wohlleben) effect [60]. It is based on the magnetic reentrance in the superconductor transition and formed due to interactions between the trapped remanence field profile in the sample, bulk superconductivity effects and especially the complex weak-link networktypes of Josephson junctions (π − π) and the symmetry of the superconducting order parameter (s-wave, d-wave).…”
Section: Resultsmentioning
confidence: 99%
“…However, for a superconductor with a particular granular morphology [52] and/or internal-void structure, the field penetration process can be much more sophisticated. A prominent example is the establishment of a paramagnetic Meissner (Wohlleben) effect [60]. It is based on the magnetic reentrance in the superconductor transition and formed due to interactions between the trapped remanence field profile in the sample, bulk superconductivity effects and especially the complex weak-link networktypes of Josephson junctions (π − π) and the symmetry of the superconducting order parameter (s-wave, d-wave).…”
Section: Resultsmentioning
confidence: 99%
“…This result also explains the large volume concentration of oxygen measured by energy dispersion spectroscopy. For the formation of the target Nb3Sn phase, selected samples were subjected to hightemperature annealing in a vacuum furnace (at a temperature of 800 °C) since as-deposited Nb3Sn coatings do not demonstrate high critical temperatures [15]. Before and after the temperature exposure, the microstructure and phase composition of the samples were controlled using XRD.…”
Section: Co-evaporation Of Nb and Sn And Multilayer Coatingsmentioning
confidence: 99%
“…In this regard, the use of Nb 3 Sn coatings, which have almost double the magnetic superheating field of 400 mT and a higher superconducting critical temperature of 18.3 K, seems very promising [11][12][13][14][15][16]. To date, several different methods have been proposed and developed for Nb 3 Sn thin film deposition.…”
Section: Introductionmentioning
confidence: 99%