Dzyaloshinskii-Moriya spin-spin interaction from mixed-parity superconductivity

Autor:	Ouassou, Jabir Ali, Yokoyama, Takehito, Linder, Jacob
Rok vydání:	2024
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
Popis:	Interacting impurity spins adsorbed on surfaces have been suggested as basic components for applications in quantum computation and spintronics. Such spins usually prefer a parallel or antiparallel configuration, but weakly non-collinear alignments are possible due to the Dzyaloshinskii-Moriya interaction (DMI) that arises in the presence of relativistic spin-orbit coupling. Here, we show that an effective DMI can emerge purely from superconducting correlations without any spin-orbit interaction. We give an analytical proof and provide a numerical study which shows that DMI arises in mixed-parity superconductors solely from the superconducting pairing. These results enable a way to engineer spin textures using the superconducting phase transition. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.07144 Zobrazit plný text záznamu View this record from Arxiv