Événements

Séminaire IQ / RQMP

Date : 14 janvier 2022 11:30

Type : Institut Quantique

Lieu : https://umontreal.zoom.us/j/89734040307?pwd=aURDVXBSNHhuSFZjSFVIUGxJUFJLQT09

https://umontreal.zoom.us/j/89734040307?pwd=aURDVXBSNHhuSFZjSFVIUGxJUFJLQT09
 
Andrea Damascelli
 SBQMI
UBC
 
Quantum Materials by Design -
 
In most materials, electrons move around and scaIer essentially independently of one
another. In quantum materials, in contrast, electrons engage in highly correlated
motions that resemble a complex dance. These correlations give rise to a wide range
of astonishing electronic and magnetic properties that evoke the most profound
scientific questions challenging the field of condensed matter physics.
Research at the Quantum MaIer Institute (QMI) at UBC seeks to unravel and exploit
the complex phenomena that emerge in novel engineered materials — not only as a
result of these strong electronic correlations, but also from other sources of
extraordinary behavior, such as topological states or physical structures created
artificially at the atomic scale. Our research has advanced beyond merely exploring
these materials so we can now begin to rationally design materials with the ideal
properties to serve as building blocks for future ultra-high-performance technologies;
synthesize these materials; characterize them, developing new experimental and
theoretical techniques along the way as needed; and using them to fabricate
archetype devices to demonstrate their technological potential.
In this talk, I will provide an overview of the ongoing Quantum Materials by Design
effort at QMI, ranging from designing novel quantum phases in graphene via strain
engineering and local symmetry breaking [1], to the possible realization of hightemperature
topological superconductivity in twisted monolayer-thin layers of d-wave
copper oxides [2]. To this end, QMI aims at bringing together research, training, and
translation in one holistic coherent effort in quantum materials & quantum
technologies.
[1] P. Nigge et al., Room temperature strain-induced Landau levels in graphene on a
wafer-scale plaeorm, Science Advances 5, eaaw5593 (2019).
[2] O. Can et al., High-temperature topological superconductivity in twisted double
layer copper oxides, Nature Physics 17, 519 (2021).

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