activity
20162023
most citedElectroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures

10 citations · 30 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mes-hall2023★ 1 cited

Lingering Times at Resonance: The Case of Sb-based Tunneling Devices

Edgar David Guarin Castro, Andreas Pfenning, Fabian Hartmann +7

Concurrent natural time scales related to relaxation, recombination, trapping, and drifting processes rule the semiconductor heterostructures' response to external drives when char…

cond-mat.mes-hall2022★ 4 cited

Linear colossal magnetoresistance driven by magnetic textures in LaTiO3 thin films on SrTiO3

Teresa Tschirner, Berengar Leikert, Felix Kern +12

Linear magnetoresistance (LMR) is of particular interest for memory, electronics, and sensing applications, especially when it does not saturate over a wide range of magnetic field…

cond-mat.mes-hall2022

Large inverted band-gap in strained three-layer InAs/GaInSb quantum wells

C. Avogadri, S. Gebert, S. S. Krishtopenko +17

Quantum spin Hall insulators (QSHIs) based on HgTe and three-layer InAs/GaSb quantum wells (QWs) have comparable bulk band-gaps of about 10--18~meV. The former however features a b…

cond-mat.mtrl-sci2020★ 7 cited

Determination of carrier density and dynamics via magneto-electroluminescence spectroscopy in resonant tunneling diodes

E. R. Cardozo de Oliveira, A. Naranjo, A. Pfenning +6

We study the magneto-transport and magneto-electroluminescence properties of purely n-doped GaAs/AlGaAs resonant tunneling diodes with an InGaAs q…

cond-mat.mtrl-sci2018★ 10 cited

Electroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures

E. R. Cardozo de Oliveira, A. Pfenning, E. D. Guarin +7

We explore the nature of the electroluminescence (EL) emission of purely n-doped GaAs/AlGaAs resonant tunneling diodes (RTDs) and the EL evolution with voltage. A singular feature…

cond-mat.mes-hall2016★ 8 cited

Gate-tunable, normally-on to normally-off memristance transition in patterned LaAlO3/SrTiO3 interfaces

Patrick Maier, Fabian Hartmann, Judith Gabel +8

We report gate-tunable memristive switching in patterned LaAlO3/SrTiO3 interfaces at cryogenic temperatures. The application of voltages in the order of a few volts to the back gat…