Zobrazeno 1 - 10
of 502
pro vyhledávání: '"Bergeret, F."'
We present a quantum transport theory for generic magnetic metals, in which magnetism occurs predominantly due to exchange interactions, such as ferromagnets, antiferromagnets, altermagnets and p-wave magnets. Our theory is valid both for the normal
Externí odkaz:
http://arxiv.org/abs/2412.10236
Noise and current measurements are key tools for studying mesoscopic systems, revealing insights beyond conductance alone. For instance, noise measurements show that transport carriers in conventional superconductors have charge 2e. The noise power a
Externí odkaz:
http://arxiv.org/abs/2411.02011
Autor:
Trivini, Stefano, Ortuzar, Jon, Zaldivar, Javier, Herrera, Edwin, Guillamón, Isabel, Suderow, Hermann, Bergeret, F. Sebastian, Pascual, Jose Ignacio
Magnetic adatoms on s-wave superconductors induce bound states inside the superconducting gap, called Yu-Shiba-Rusinov states (YSR). The anisotropy of the Fermi surface determines the spatial extension of bound states in a quasi-two-dimensional super
Externí odkaz:
http://arxiv.org/abs/2408.11704
Publikováno v:
Phys. Rev. B 110, L140501 (2024)
We characterize the superconducting diode effect (SDE) in two-dimensional diffusive structures with Rashba spin-orbit coupling using the quasiclassical formalism. We consider both homogeneous superconductors and Josephson junctions. In the first case
Externí odkaz:
http://arxiv.org/abs/2406.17046
We present an effective field theory for a unified description of transport in normal and superconducting metals in the presence of generic spin-orbit coupling (SOC). The structure of the quantum kinetic theory in the diffusive regime is determined b
Externí odkaz:
http://arxiv.org/abs/2405.06334
Autor:
Matsuki, Hisakazu, Hijano, Alberto, Mazur, Grzegorz P., Ilic, Stefan, Wang, Binbin, Alekhina, Yuliya, Ohnishi, Kohei, Komori, Sachio, Li, Yang, Stelmashenko, Nadia, Banerjee, Niladri, Cohen, Lesley F., McComb, David W., Bergeret, F. Sebastian, Yang, Guang, Robinson, Jason W. A.
In 1966, Pierre-Gilles de Gennes proposed a non-volatile mechanism for switching superconductivity on and off in a magnetic device. This involved a superconductor (S) sandwiched between ferromagnetic (F) insulators in which the net magnetic exchange
Externí odkaz:
http://arxiv.org/abs/2404.16264
Publikováno v:
Phys.Rev.Research.6.033022 (2024)
A superconductor (SC) in proximity to a ferromagnetic insulator (FMI) is predicted to exhibit mixed singlet and triplet pair correlations. The magnetic proximity effect of FMI spin-splits the energy of Bogoliubov excitations and leads to a spin polar
Externí odkaz:
http://arxiv.org/abs/2402.07184
Publikováno v:
Phys. Rev. Research 6, 023100 (2024)
We present a theory of weak localization (WL) in the presence of generic spin-dependent fields, including any type of spin-orbit coupling, Zeeman fields, and non-homogeneous magnetic textures. We go beyond the usual diffusive approximation, consideri
Externí odkaz:
http://arxiv.org/abs/2311.01148
Autor:
Xiang, B. K., Lin, Y. S., He, Q. S., Zhu, J. J., Chen, B. R., Wang, Y. F., Liang, K. Y., Li, Z. J., Yao, H. X., Wu, C. X., Zhou, T. Y., Fang, M. H., Lu, Y., Tokatly, I. V., Bergeret, F. S., Wang, Y. H.
Conventional superconductors naturally disfavor ferromagnetism because the supercurrent-carrying electrons are paired into anti-parallel spin singlets. In superconductors with strong Rashba spin-orbit coupling, impurity magnetic moments induce superc
Externí odkaz:
http://arxiv.org/abs/2307.10722
We investigate the behavior of magnetic impurities placed on the surface of superconductor thin films with spin-orbit coupling. Our study reveals long-range interactions between the impurities, which decay according to a power law, mediated by the su
Externí odkaz:
http://arxiv.org/abs/2307.10723