Zobrazeno 21 - 30
of 1 329
pro vyhledávání: '"Sudbø A"'
Publikováno v:
Phys. Rev. B 104, 104515 (2021)
We use large-scale Monte Carlo computations to study the phase transitions of a two-component chiral p-wave superconductor in zero external magnetic field. We find a first order phase transition from the normal state to a chiral superconducting state
Externí odkaz:
http://arxiv.org/abs/2106.01007
Publikováno v:
Phys. Rev. B 104, 014508 (2021)
We perform Eliashberg calculations for magnon-mediated superconductivity in a normal metal, where the electron-magnon interaction arises from interfacial coupling to antiferromagnetic insulators. In agreement with previous studies, we find $p$-wave p
Externí odkaz:
http://arxiv.org/abs/2105.02235
Autor:
Erlandsen, Eirik, Sudbø, Asle
Publikováno v:
Phys. Rev. B 102, 214502 (2020)
We study superconductivity in a normal metal, arising from effective electron-electron interactions mediated by spin-fluctuations in a neighboring antiferromagnetic insulator. Introducing a frustrating next-nearest neighbor interaction in a N\'eel an
Externí odkaz:
http://arxiv.org/abs/2009.07862
Publikováno v:
Phys. Rev. A 102, 053318 (2020)
A weakly interacting, spin-orbit coupled, ultracold, dilute Bose gas on a two-dimensional square lattice with an external Zeeman field is studied. We explore the plane and stripe wave phases of the system involving nonzero condensate momenta, which o
Externí odkaz:
http://arxiv.org/abs/2009.04538
Publikováno v:
Phys. Rev. Lett. 125, 237204 (2020)
Motivated by recent progress on synthesizing two-dimensional magnetic van der Waals systems, we propose a setup for detecting the topological Berezinskii-Kosterlitz-Thouless (BKT) phase transition in spin-transport experiments on such structures. We
Externí odkaz:
http://arxiv.org/abs/2008.08892
Publikováno v:
Phys. Rev. B 103, 214517 (2021)
We use large-scale Monte-Carlo simulations to study thermal fluctuations in chiral $p$-wave superconductors in an applied magnetic field in three dimensions. We consider the thermal stability of previously predicted unusual double-quanta flux-line la
Externí odkaz:
http://arxiv.org/abs/2007.09161
Autor:
Hugdal, Henning G., Sudbø, Asle
Publikováno v:
Phys. Rev. B 102, 125429 (2020)
We study the magnon-mediated pairing between fermions on the surface of a topological insulator (TI) coupled to a ferromagnetic insulator with a tilted mean field magnetization. Tilting the magnetization towards the interfacial plane reduces the magn
Externí odkaz:
http://arxiv.org/abs/2007.02953
Publikováno v:
Phys. Rev. B 101, 094503 (2020)
We study superconductivity on the surface of a topological insulator, mediated by magnetic fluctuations in an adjacent ferromagnetic or antiferromagnetic insulator. Superconductivity can arise from effective interactions between helical fermions indu
Externí odkaz:
http://arxiv.org/abs/1912.07607
Publikováno v:
Phys. Rev. B 101, 214513 (2020)
Insight into why superconductivity in pristine and doped monolayer graphene seems strongly suppressed has been central for the recent years' various creative approaches to realize superconductivity in graphene and graphene-like systems. We provide fu
Externí odkaz:
http://arxiv.org/abs/1912.05570