نتایج جستجو برای: proximity effect superconductivity

تعداد نتایج: 1683365  

Journal: :Journal of Applied Physics 2023

The conventional theory of superconductivity holds that Cooper pairs form due to electron–phonon coupling; however, this description may not be adequate describe certain unconventional superconductors such as cuprates and iron chalcogenides. In these superconductors, it has been proposed spin fluctuations responsible for the formation pairs. study, we explore interactions in transition metal, d...

Journal: :Physical review letters 2011
Mikhail S Kalenkov Andrei D Zaikin Victor T Petrashov

We argue that triplet superconductivity can be conveniently realized in hybrid superconductor-ferromagnet (S-F) structures with a ferromagnetic vortex. We demonstrate that due to proximity-induced long-range triplet pairing such S-F-S junctions can sustain appreciable supercurrent which can be directly measured in experiments. Depending on the contact geometry either zero- or π-junction regime ...

Journal: :Physical review 2022

Bilayer Moir\'e structures are a highly tunable laboratory to investigate the physics of strongly correlated electron systems. transition metal dichalcogenides at low-energies, in particular, believed be described by single narrow band Hubbard model on triangular lattice with spin-orbit coupling. Motivated recent experimental evidence for superconductivity twisted bilayer materials, we possible...

2015
Michael R. Norman

Superconductivity and magnetism are typically antithetical forms of order. After all, in conventional superconductors, magnetic impurities are destructive to superconductivity as they break Cooper pairs [1]. But the discovery in 1979 of so-called heavy fermion superconductivity, found near an antiferromagnetic phase, led to a shift in thinking on this subject [2]. Since then, some of the most i...

Journal: :Physical review research 2021

Hole gases in planar germanium can have high mobilities combination with strong spin-orbit interaction and electrically tunable g-factors, are therefore emerging as a promising platform for creating hybrid superconductor-semiconductor devices. A key challenge towards Ge-based quantum technologies is the design of high-quality interfaces superconducting contacts that robust against magnetic fiel...

2008
Gerd Bergmann

Two atomic layers of Ni condensed onto Pb films behave, according to anomalous Hall effect measurements, as magnetic dead layers. However, the Ni lowers the superconducting Tc of the Pb film. This has lead to the conclusion that the Ni layers are still very weakly magnetic. In the present paper the electron dephasing due to the Ni has been measured by weak localization. The dephasing is smaller...

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