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

Datum

11.09.2018

Zeit

11:00 - 12:00

Sprecher

Sr. Nicola Poccia

Zugehörigkeit

Harvard University, USA

Sprache

en

Hauptthema

Materialien

Andere Themen

Materialien

Host

Dr. Johannes Gooth

Beschreibung

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

• MPI CPfS

Letztmalig verändert: 12.09.2018, 02:08:26