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Andreev reflection, named after the Russian physicist Alexander F. Andreev, is a type of particle scattering which occurs at interfaces between a superconductor (S) and a normal state material (N). It is a charge-transfer process by which normal current in N is converted to supercurrent in S.
The main field of Naidyuk's scientific research is the study of the interaction of conduction electrons with quasiparticle excitations in solids using the method of point contact spectroscopy; research of strongly correlated electronic systems and point contact spectroscopy of topical superconductors, including promising ones such as magnesium diboride, rare-earth nickel-borocarbide compounds ...
Conversely, the (gapless) electron order present in the normal metal is also carried over to the superconductor in that the superconducting gap is lowered near the interface. The microscopic model describing this behavior in terms of single electron processes is called Andreev reflection. It describes how electrons in one material take on the ...
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The table below shows some of the parameters of common superconductors. X:Y means material X doped with element Y, T C is the highest reported transition temperature in kelvins and H C is a critical magnetic field in tesla. "BCS" means whether or not the superconductivity is explained within the BCS theory.
Frank Willem Jan Hekking (1964 — died 15 May 2017) was a Dutch physicist working at Université Grenoble Alpes in Grenoble, France.He is notable for his contributions in theory of mesoscopic superconductivity, in particular, Andreev reflection and Josephson effect. [1]
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Calculated magnetization curve for a superconducting slab, based on Bean's model. The superconducting slab is initially at H = 0. Increasing H to critical field H* causes the blue curve; dropping H back to 0 and reversing direction to increase it to -H* causes the green curve; dropping H back to 0 again and increase H to H* causes the orange curve.