Spin-polarized thermoelectrical currents induced in Aharonov-Bohm rings
Hwang, Sun-Yong Hwang; Sothmann, Björn; and López, Rosa
, (2024)
, (2024)
We propose an interferometric device that generates spin-polarized electric currents based on an Aharonov-Bohm ring geometry. The device is driven by a temperature gradient and a magnetic flux without any voltage bias. Remarkably, no ferromagnetic contact is necessary once the two-path interference effects are present combined with a spin-orbit interaction. A large amplitude of spin current signal occurs where the charge current is small or even vanishing, thus easily creating pure spin currents by applying a magnetic field. Our proposal provides an ingredient of information processing devices in a generic caloritronic setup.
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SuMQuTT
Surfing Multiterminal Quantum Thermodynamics and Topology
I.P.: Rosa Lopez, Llorenç Serra
Our project is devoted to the investigation of the novel physics and the functionalities emerging from the combination of three fundamental aspects such as quantum behavior, thermodynamics and topology in transport through …