August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【166】Negative Spin Current Correlation in a Cooper Pair Splitter

Sep 3, 2021, 12:30 PM
Room C

Room C

Talk Condensed Matter Physics (KOND) Condensed Matter Physics


Dr Arunav Bordoloi (University of Basel)


A longstanding goal is to utilize the spin of an electron in electronic devices, both, in applications summarized as spintronics, as well as in fundamental research, for example to demonstrate spin correlations in superconducting electronic elements. To this end, we have introduced ferromagnetic split-gates (FSGs) that allow to individually polarize the electron spin states of semiconductor quantum dots (QDs). Such spin polarized QDs can be used as highly-efficient tunable spin-filters (spin detectors) in complex nanoelectronic devices. Here, we demonstrate a negative spin-corrleation in a Cooper pair splitting (CPS) device using two FSG/QD elements at the two output arms which can be tunned in a parallel and antiparallel spin-filter configuration.

Primary author

Prof. Christian Schönenberger (University of Basel)


Dr Andreas Baumgartner (University of Basel) Dr Arunav Bordoloi (University of Basel) Prof. Lucia Sorba (Istituto Nanoscienze-CNR and Scuola Normale Superiore) Dr Valentina Zannier (Istituto Nanoscienze-CNR and Scuola Normale Superiore)

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