Active projects:

Title: Electronic transport in hybrid structures: low-dimensional materials, superconductors, magnets, semiconductors and normal metals 

Funding Agency: Ministerio de Economía Industria y Competitividad.

PIs: Dario Bercioux and Sebastian Bergeret


This project addresses various theoretical aspects of quantum transport in solid states systems with special focus on hybrid structures, superconductivity, and low-dimensional materials. 

We have identified several open research problems in these fields that form the bulk of the present project. 

The project encompasses issues related to mesoscopic physics, quantum transport in hybrid structures, superconductivity, and to the emerging research field of electron quantum optics.

The  three main research lines are: 

1. Non-equilibrium properties of superconducting structures with spin-dependent fields.

2. Transport properties of hybrid structures.

3. Electron quantum optics in graphene and topological insulators.

TitleThermoelectric detector based on superconductor-ferromagnet heterostructures  (SUPERTED)

Funding Agency: European Commission

PI — local: Sebastian Bergeret


In this project, we propose to study a new type of radiation sensor that overcomes  limitation state-of-the-art superconducting sensors. 

The proposed detector  is based on the thermoelectric conversion of the radiation signal to electrically measurable one. 

This approach is based on the newly found giant thermoelectric effect  taking place in superconductor/ferromagnet heterostructures. 

Utilising this effect, the sensor pixels can be self-powered by the measured radiation, and therefore extra bias lines are not needed.

Within the project, we aim to establish a proof of concept of this device by

1) fabricating such detector elements, 

2) characterising single-pixels of thermoelectric detectors for X-ray and THz imaging via approaches that are scalable to large arrays.

In the project participate groups from Centro de Físca de Materiales (CSIC-UPV), University of Jyväskylä (Finland), The National Center for Scientific Research (CNRS, France), The National Research Council (CNR, Italy) and the company BihurCrystal (san Sebastian). 

 © Sebastian Bergeret 2019