71 citations · 152 across the 5 of their papers we have counts for
5 papers
Dynamics of Voltage Driven Self-Sustained Oscillations in NdNiO Neuristors
Upanya Khandelwal, Qikai Guo, Beatriz Noheda +2
Active memristor elements, also called neuristors, are self-oscillating devices that are very good approximations to biological neuronal functionality and are crucial to the develo…
Phenomenological classification of metals based on resistivity
Qikai Guo, César Magén, Marcelo J. Rozenberg +1
Efforts to understand metallic behaviour have led to important concepts such as those of strange metal, bad metal or Planckian metal. However, a unified description of metallic res…
From hidden metal-insulator transition to Planckian-like dissipation by tuning disorder in a nickelate
Qikai Guo, Beatriz Noheda
Heavily oxygen deficient NdNiO (NNO) films, which are insulating due to electron localization, contain pristine regions that undergo a hidden metal-insulator transition. Increa…
Guidelines for the stabilization of a polar rhombohedral phase in epitaxial Hf0.5Zr0.5O2 thin films
Pavan Nukala, Yingfen Wei, Vincent de Haas +3
The unconventional Si-compatible ferroelectricity in hafnia-based systems, which becomes robust only at nanoscopic sizes, has attracted a lot of interest. While a metastable polar…
Tunable resistivity exponents in the metallic phase of epitaxial nickelates
Qikai Guo, Saeedeh Farokhipoor, César Magén +2
We report a detailed analysis of the electrical resistivity exponent of thin films of NdNiO3 as a function of epitaxial strain. Strain-free thin-films show a linear dependence of t…