CE30 - Physique de la matière condensée et de la matière diluée

Superconductivity and topological phases in misfit dichalcogenides – Misfit

Submission summary

Superconductivity in transition metal dichalcogenides such as NbSe2 persists down to monolayer thickness. These 2D superconductors have a strong Ising spin-orbit coupling, which can lead to unconventional superconductivity with triplet pairing instead of the singlet pairing commonly observed. This could lead to a topological superconducting state in monolayers or multilayers of transition metal dichalcogenides. The aim of our project is explore unconventional superconductivity and topological phases in heterostructures based on the stacking of layers of transition metal dichalcogenides separated by magnetic or non-magnetic insulating layers. The synthesized materials will be studied by various transport methods and spectroscopy techniques such a tunnel spectroscopy and angle resolved photoemission spectroscopy. Our experimental studies will be complemented by electronic structure calculation and analytical models to estimate which superconducting and topological phases are possible.

Project coordination

Tristan Cren (Institut des nanosciences de Paris)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

LPS Laboratoire de Physique des Solides
INSP Institut des nanosciences de Paris
IMN INSTITUT DES MATERIAUX JEAN ROUXEL
IPR INSTITUT DE PHYSIQUE DE RENNES

Help of the ANR 598,899 euros
Beginning and duration of the scientific project: December 2021 - 48 Months

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