نتایج جستجو برای: proximity effect superconductivity
تعداد نتایج: 1683365 فیلتر نتایج به سال:
Abstract A Josephson junction (JJ) couples the supercurrent flowing between two weakly linked superconductors to phase difference them via a current-phase relation (CPR). While sinusoidal CPR is expected for conventional junctions with insulating weak links, devices made from some exotic materials may give rise unconventional CPRs and unusual effects. In this work, we present such case: investi...
Larbalestier †§ N. Rogado*, K.A. Regan*, M.A. Hayward*, T. He*, J.S. Slusky*, K. Inumaru*, M.K. Haas* and R.J. Cava* † Department of Materials Science and Engineering, Univer-sity of Wisconsin, 1509 University Avenue, Madison, WI 53706 USA § Applied Superconductivity Center, University of Wisconsin, 1500 Engineering Drive, Madison, WI 53706 USA * Department of Chemistry and Princeton Materials ...
By solving the Bogoliubov--de Gennes Hamiltonian, electron-hole coherence within a partially proximitized $n$-doped semiconductor shell of core-shell nanowire heterostructure is investigated numerically and compared with Andreev reflection interpretation proximity induced superconductivity. Partial proximitization considered to quantify effects reduced length. Three cases partial are explored: ...
Unconventional superconductors have been long sought for their potential applications in quantum technologies and devices. A key challenge impeding this effort is the difficulty associated with probing characterizing candidate materials establishing order parameter. In Letter, we present a platform that allows us to spectroscopically probe unconventional superconductivity thin-layer via proximi...
We examine the effect of a spin-active interface on the symmetry of proximity-induced superconducting pairing amplitudes in topological insulators. We develop a model to investigate the leading-order contribution to the pairing amplitude considering three different kinds of spin-active interfaces: (i) those that induce spindependent scattering phases, (ii) those that flip the spin of incident e...
We report on an experimental study of diffusive transport near the highly transparent interface of niobium(Nb)/multi-walled carbon nanotube (MWNT) junctions realized by utilizing the nanopores of alumina membranes. In the magnetic-field dependence of observed conductance increase, the transition temperatures vs nanotube length diagram, and the zero-bias conductance peak, we observed proximityin...
Topological superconductivity is a state of matter that can host Majorana modes, the building blocks of a topological quantum computer. Many experimental platforms predicted to show such a topological state rely on proximity-induced superconductivity. However, accessing the topological properties requires an induced hard superconducting gap, which is challenging to achieve for most material sys...
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