Browsing NTNU Open by Author "Erlandsen, Eirik"
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Eliashberg study of superconductivity induced by interfacial coupling to antiferromagnets
Thingstad, Even; Erlandsen, Eirik; Sudbø, Asle (Peer reviewed; Journal article, 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 ... -
Enhancement of superconductivity mediated by antiferromagnetic squeezed magnons
Erlandsen, Eirik; Kamra, Akashdeep; Brataas, Arne; Sudbø, Asle (Journal article; Peer reviewed, 2019)We theoretically investigate magnon-mediated superconductivity in a heterostructure consisting of a normal metal and a two-sublattice antiferromagnetic insulator. The attractive electron-electron pairing interaction is ... -
Magnon-mediated superconductivity on the surface of a topological insulator
Erlandsen, Eirik; Brataas, Arne; Sudbø, Asle (Journal article; Peer reviewed, 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 ... -
Quantum Monte Carlo Simulations of Drag Interaction in the Superfluid Phase of the 3-Component Bose-Hubbard Model
Erlandsen, Eirik (Master thesis, 2018)We study Andreev-Bashkin drag interactions between the superflow of different components in the superfluid phase of a three-component Bose-Hubbard model without component-mixing interactions, relevant for cold atom systems ... -
Schwinger boson study of superconductivity mediated by antiferromagnetic spin fluctuations
Erlandsen, Eirik; Sudbø, Asle (Peer reviewed; Journal article, 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 ...