185 citations · 520 across the 7 of their papers we have counts for
7 papers
Neuromimetic Circuits with Synaptic Devices based on Strongly Correlated Electron Systems
Sieu D. Ha, Jian Shi, Yasmine Meroz +2
Strongly correlated electron systems such as the rare-earth nickelates (RNiO3, R = rare-earth element) can exhibit synapse-like continuous long term potentiation and depression whe…
Conductivity noise study of the insulator-metal transition and phase co-existence in epitaxial samarium nickelate thin films
Anindita Sahoo, Sieu D. Ha, Shriram Ramanathan +1
Interaction between the lattice and the orbital degrees of freedom not only makes rare-earth nickelates unusually "bad metal", but also introduces a temperature driven insulator-me…
Origins of bad metal conductivity and the insulator-metal transition in the rare-earth nickelates
R. Jaramillo, Sieu D. Ha, D. M. Silevitch +1
For most metals, increasing temperature (T) or disorder will quicken electron scattering. This hypothesis informs the Drude model of electronic conductivity. However, for so-called…
Electrical switching dynamics and broadband microwave characteristics of VO2 RF devices
Sieu D. Ha, You Zhou, Christopher J. Fisher +2
Vanadium dioxide is a correlated electron system that features a metal-insulator phase transition (MIT) above room temperature and is of interest in high speed switching devices. H…
Electrostatic gating of metallic and insulating phases in SmNiO3 ultrathin films
Sieu D. Ha, Ulrich Vetter, Jian Shi +1
The correlated electron system SmNiO3 exhibits a metal-insulator phase transition at 130 °C. Using an ionic liquid as an electric double layer (EDL) gate on three-terminal ultrathi…
Hall effect measurements on epitaxial SmNiO3 thin films and implications for antiferromagnetism
Sieu D. Ha, R. Jaramillo, D. M. Silevitch +4
The rare-earth nickelates (RNiO3) exhibit interesting phenomena such as unusual antiferromagnetic order at wavevector q = (1/2, 0, 1/2) and a tunable insulator-metal transition tha…