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MIT Team Develops New Technique to Reveal Dynamics of Electrons in Quantum Materials

By IQT News posted 20 Aug 2019

(MIT.edu) A new technique developed by a team at MIT can map the complete electronic band structure of materials at high resolution. The MIT team evaluated their instrument resolution using four exemplary materials representing a wide spectrum of quantum materials: a topological Weyl semimetal, a high-critical-temperature superconductor, a layered semiconductor, and a charge density wave system.
This capability is usually exclusive to large synchrotron facilities, but now it is available as a tabletop laser-based setup at MIT. This technique, which uses extreme ultraviolet (XUV) laser pulses to measure the dynamics of electrons via angle-resolved photoemission spectroscopy (ARPES), is called time-resolved XUV ARPES.

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