Assembly, transport and synchrotron radiation measurements of high temperature superconducting van der Waals cuprate heterostructures

Date

Sep 14, 2018

Time

11:00 AM - 12:00 PM

Speaker

Nicola Poccia

Affiliation

Department of Physics, Harvard University, USA

Language

en

Main Topic

Materialien

Other Topics

Materialien, Physik

Host

Ines Firlle

Description

Unique physical properties of low-dimensional electronic systems arise from the fine balance and interplay of often competing phenomena ignited by the reduced dimensionality. Artificial 2D superconductors and heterostructure can be an optimal platform to study nanoscale phase separated quantum metals and non-equilibrium many-body physics. The observation that most high temperature superconductors can be viewed as layered van der Waals heterostructures, is opening an unprecedented route for manufacturing ultra-thin vdW heterostructures in the ultimate quantum limit. Unlike conventional superconductors, these doped materials show an intrinsic multi-scale heterogeneity and a complete new set of imaging and nanofabrication tools are required to tame this complexity. In this talk, I will show the enhanced Hall effect and the structural nanoscale heterogeneity using advanced X-ray nanoprobes of bulk crystals and of an assembled few-unit cells van der Waals cuprate high temperature superconducting heterostructure. I will show how to mimic 2D superconductors using artificial superconducting proximity arrays. Towards the end, I will demonstrate our recent realization of more complex devices and of a twisted Josephson-junctions made of assembled van der Waals High-Tc heterostructures.

Links

• Seminars at the IFW

Last modified: Sep 12, 2018, 2:08:25 AM