activity
20112017
most citedInstantaneous band gap collapse in photoexcited monoclinic VO due to photocarrier doping

263 citations · 458 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2017

Ultrafast Carrier Dynamics in VO across the Pressure-Induced Insulator-to-Metal Transition

Johannes M. Braun, Harald Schneider, Manfred Helm +5

We utilize near-infrared pump and mid-infrared probe spectroscopy to investigate the ultrafast electronic response of pressurized VO. Distinct pump-probe signals and a pumping…

cond-mat.mes-hall2016★ 33 cited

Nanoscale spectroscopic imaging of phase separation in a correlated material by resonant X-ray holography

Luciana Vidas, Christian M. Günther, Timothy A. Miller +8

Nanoscale phase coexistence and inhomogeneity are ubiquitous in correlated electron materials, existing in doped Mott insulators, manganites, and high-temperature superconductors.…

cond-mat.mes-hall2016★ 87 cited

Ultrafast mid-infrared nanoscopy of strained vanadium dioxide nanobeams

M. A. Huber, M. Plankl, M. Eisele +7

Long regarded as a model system for studying insulator-to-metal phase transitions, the correlated electron material vanadium dioxide (VO) is now finding novel uses in device ap…

cond-mat.str-el2015★ 74 cited

Tunneling Breakdown of a Strongly Correlated Insulating State in VO Induced by Intense Multi-Terahertz Excitation

B. Mayer, C. Schmidt, A. Grupp +8

We directly trace the near- and mid-infrared transmission change of a VO thin film during an ultrafast insulator-to-metal transition triggered by high-field multi-terahertz tra…

cond-mat.mes-hall2015

Control of plasmonic nanoantennas by reversible metal-insulator transition

Yohannes Abate, Robert E. Marvel, Jed I. Ziegler +4

Nanophotonic (nanoplasmonic) structures confine, guide, and concentrate light on the nanoscale. Advancement of nanophotonics critically depends on active nanoscale control of these…

cond-mat.str-el2014★ 263 cited

Instantaneous band gap collapse in photoexcited monoclinic VO due to photocarrier doping

Daniel Wegkamp, Marc Herzog, Lede Xian +8

Using femtosecond time-resolved photoelectron spectroscopy we demonstrate that photoexcitation transforms monoclinic VO quasi-instantaneously into a metal. Thereby, we exclude…