197 citations · 279 across the 13 of their papers we have counts for
13 papers
Mismatch between Raman shear modes and ferroelectric polarization in 3R-MoS
Johannes Schwandt-Krause, Jan-Niklas Heidkamp, Mohammed El Amine Miloudi +7
Sliding ferroelectricity in parallel-stacked two-dimensional van der Waals materials enables a broad range of novel device concepts, but exploiting it requires reliable, non-destru…
Investigating the Ferroelectric Potential Landscape of 3R-MoS through Optical Measurements
Jan-Niklas Heidkamp, Johannes Schwandt-Krause, Swarup Deb +4
In recent years, sliding ferroelectricity has emerged as a topic of significant interest due to its possible application in non-volatile, reconfigurable storage devices. This pheno…
Ferroelectric Control of Interlayer Excitons in 3R-MoS / MoSe Heterostructures
Johannes Schwandt-Krause, Mohammed El Amine Miloudi, Elena Blundo +9
We investigate the interaction between interlayer excitons and ferroelectric domains in hBN-encapsulated 3R-MoS/MoSe heterostructures, combining photoluminescence experimen…
Excitonic signatures of ferroelectric order in parallel-stacked MoS
Swarup Deb, Johannes Krause, Paulo E. Faria Junior +6
Interfacial ferroelectricity, prevalent in various parallel-stacked layered materials, allows switching of out-of-plane ferroelectric order by in-plane sliding of adjacent layers.…
Polarization Saturation in Multi-layered Interfacial Ferroelectrics
Wei Cao, Swarup Deb, Maayan Vizner Stern +5
Van der Waals (vdW) polytypes of broken inversion and mirror symmetries were recently shown to exhibit switchable electric polarization even at the ultimate two-layer thin limit. T…
Effect of spin-dependent tunneling in a MoSe/CrGeTe van der Waals heterostructure on exciton and trion emission
Annika Bergmann, Swarup Deb, Klaus Zollner +7
We study van der Waals heterostructures consisting of monolayer MoSe and few-layer CrGeTe fully encapsulated in hexagonal Boron Nitride using low-temperature photol…
Rapid spin depolarization in the layered 2D Ruddlesden Popper perovskite (BA)(MA)PbI
Michael Kempf, Philipp Moser, Maximilian Tomoscheit +8
We report temperature-dependent spectroscopy on the layered (n=4) two-dimensional (2D) Ruddlesden-Popper perovskite (BA)(MA)PbI. Helicity-resolved steady-state photoluminescence (P…
Shaping Exciton Polarization Dynamics in 2D Semiconductors by Tailored Ultrafast Pulses
Omri Meron, Uri Arieli, Eyal Bahar +3
The ultrafast formation of strongly bound excitons in two-dimensional semiconductors provide a rich platform for studying fundamental physics as well as developing novel optoelectr…
Cumulative Polarization Coexisting with Conductivity at Interfacial Ferroelectrics
Swarup Deb, Wei Cao, Noam Raab +7
Ferroelectricity in atomically thin bilayer structures has been recently predicted1 and measured[2-4] in two-dimensional (2D) materials with hexagonal non-centrosymmetric unit-cell…
Effect of manganese incorporation on the excitonic recombination dynamics in monolayer MoS
Poulab Chakrabarti, Santosh Kumar Yadav, Swarup Deb +1
Using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy techniques we investigate the incorporation of Manganese (Mn) in monolayer (1L)-M…
Spin transport in polarization induced two dimensional confinement of carriers in wedge shaped \textit{c}-GaN nanowalls
Swarup Deb, Subhabrata Dhar
Spin transport property of polarization induced two-dimensional electron gas channel formed in the central vertical plane of a wedge-shaped \textit{c}-oriented GaN nanowall is inve…
Tunability of electrical and thermoelectrical properties of monolayer MoS through oxygen passivation
Swarup Deb, Pritam Bhattacharyya, Poulab Chakrabarti +4
Electric and thermoelectric properties of strictly monolayer MoS films, which are grown using a novel micro-cavity based CVD growth technique, have been studied under diverse e…
Demonstration of defect-defect ferromagnetic coupling in Gd doped GaN epitaxial films: A polarization selective magneto-photoluminescence study
Rajendra K. Saroj, Preetha Sarkar, Swarup Deb +1
Magnetic field dependent polarization selective photoluminescence(PL) study has been carried out at 1.5~K on Gd-doped GaN epitaxial layers grown on c-SiC substrates by molecular be…