Phase-controlled heat modulation with Aharonov-Bohm interferometers

• DOI: 10.1103/PhysRevResearch.6.013215
• ArXiv number: https://arxiv.org/abs/2406.12543

A heat modulator is proposed based on a voltage-biased Aharonov-Bohm interferometer. Once an electrical bias is applied, Peltier effects give rise to a flow of heat that can be modulated by a magnetic flux. We determine the corresponding temperature changes using a simple thermal model. Our calculations demonstrate that the modulated temperature difference can be as large as 80 mK at base temperature about 600 mK with relative temperature variations reaching 10%. Our model also predicts, quite generally, the emergence of spin-polarized heat flows without any ferromagnetic contacts, if Rashba spin-orbit interaction is combined with the applied magnetic flux, which potentially paves the way towards caloritronic information processing.

Related research projects

MACTOPE

MATERIA CUANTICA TOPOLÓGICA: PRECISIÓN Y ENERGÍA

I.P.: Rosa Lopez

In the last two decades we have witnessed an unprecedented revolution with the progress of new technologies based on the properties of so-called quantum matter. Examples are quantum computing that uses quantum …

QuTTNAQMa

TRANSPORTE CUANTICO Y TERMODINAMICA: NUEVAS AVENIDAS EN MATERIALES CUANTICOS

I.P.: Rosa Lopez, Llorenç Serra

The aim of this project is to investigate the heat and energy transport properties in nanoconductors considering complex phenomena due to either many-body interactions and/or the presence of quantum materials.