21 citations · 32 across the 4 of their papers we have counts for
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Mind the Gap -- Imaging Buried Interfaces in Twisted Oxide Moirés
Harikrishnan KP, Xin Wei, Chia-Hao Lee +10
The ability to tune electronic structure in twisted stacks of two-dimensional (2D) materials has motivated the exploration of similar moiré physics with twisted oxide membranes. Du…
Microscopic mechanisms of flexoelectricity in oxide membranes
Harikrishnan KP, Varun Harbola, Jaehong Choi +9
Modern electromechanical actuators and sensors rely on the piezoelectric effect that linearly couples strain and electric polarization. However, this effect is restricted to materi…
Electron ptychography reveals a ferroelectricity dominated by anion displacements
Harikrishnan KP, Ruijuan Xu, Kinnary Patel +9
Sodium niobate, a lead-free ferroic material, hosts delicately-balanced, competing order parameters, including ferroelectric states that can be stabilized by epitaxial strain. Here…
Imaging interstitial atoms with multislice electron ptychography
Zhen Chen, Yu-Tsun Shao, Steven E. Zeltmann +5
Doping impurity atoms is a strategy commonly used to tune the functionality of materials including catalysts, semiconductors, and quantum emitters. The location of dopants and thei…