activity
20062023
most citedVanadium dioxide as a natural disordered metamaterial: perfect thermal emission and large broadband negative differential thermal emittance

299 citations · 2.5k across the 42 of their papers we have counts for

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Showing 2013 · cond-mat.mtrl-sciShow all

5 papers · 2 filters

cond-mat.mtrl-sci2013★ 28 cited

Direct in-situ observation of structural transition driven actuation in VO2 utilizing electron transparent cantilevers

Viswanath Balakrishnan, Shriram Ramanathan

Direct imaging and quantification of actuation in nanostructures that undergo structural phase transitions could advance our understanding of collective phenomena in the solid stat…

cond-mat.mtrl-sci2013★ 45 cited

GaN / VO2 heteroepitaxial p-n junctions: Band offset and minority carrier dynamics

You Zhou, Shriram Ramanathan

We report on experimental realization of p-n heterojunctions based on p-type GaN, and an n-type correlated oxide, VO2. The band offsets are evaluated by current-voltage and capacit…

cond-mat.mtrl-sci2013★ 112 cited

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…

cond-mat.mtrl-sci2013★ 38 cited

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…

cond-mat.mtrl-sci2013★ 61 cited

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…