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The phase transition in VO2 probed using x-ray, visible and infrared radiations
Suhas Kumar, John Paul Strachan, A. L. David Kilcoyne +5
Vanadium dioxide (VO2) is a model system that has been used to understand closely-occurring multiband electronic (Mott) and structural (Peierls) transitions for over half a century…
Sequential Electronic and Structural Transitions in VO2 Observed Using X-ray Absorption Spectromicroscopy
Suhas Kumar, John Paul Strachan, Matthew D. Pickett +3
The popular dual electronic (Mott) and structural (Peierls) transitions in VO2 are explored using x-ray absorption spectromicroscopy with high spatial and spectral resolutions. It…
Local Temperature Redistribution and Structural Transition During Joule-Heating-Driven Conductance Switching in VO2
Suhas Kumar, Matthew D. Pickett, John Paul Strachan +3
Joule-heating induced conductance-switching is studied in VO2, a Mott insulator. Complementary in-situ techniques including optical characterization, blackbody microscopy, scanning…
In-operando synchronous time-multiplexed O K-edge x-ray absorption spectromicroscopy of functioning tantalum oxide memristors
Suhas Kumar, Catherine E. Graves, John Paul Strachan +4
Memristors are receiving keen interest because of their potential varied applications and promising large-scale information storage capabilities. Tantalum oxide is a memristive mat…