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Shedding Light on Quantum Materials

Kyle Shen, Cornell University
Monday, November 9, 2015 - 4:00pm to 5:00pm
PAA A-102

Quantum materials host a vast array of emergent
electronic phenomena, including high-temperature superconductivity, colossal
magnetoresistance, and nanoscale charge / spin ordering. One of the grand
challenges of this field is to develop an understanding of how strong quantum
many-body interactions can influence the electronic structure of these
materials and give rise to novel electronic and magnetic phenomena and ground
states. I will describe how we use angle-resolved photoemission spectroscopy
(ARPES), a powerful technique for directly measuring the electronic structure
and quantum many-body interactions, to reveal new insights into materials such
as unconventional superconductors. I will focus particularly on our development
of new capabilities which integrate ARPES and molecular beam epitaxy (MBE)
synthesis. This combination allows us, for the first time, to create, observe,
and control states which emerge at artificially synthesized, atomically precise
interfaces and heterostructures of quantum materials. ​

​Watch a video​ of the colloquium.

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