8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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8 papers · 2 filters
Biredox ionic liquids with solid-like redox density in the liquid state for high-energy supercapacitors
Eléonore Mourad, Laura Coustan, Pierre Lannelongue +6
Kinetics of electrochemical reactions are several orders of magnitude slower in solids than in liquids as a result of the much lower ion diffusivity. Yet, the solid state maximizes…
Singlet Oxygen Generation as a Major Cause for Parasitic Reactions during Cycling of Aprotic Lithium-Oxygen Batteries
Nika Mahne, Bettina Schafzahl, Christian Leypold +10
Non-aqueous metal-oxygen batteries depend critically on the reversible formation/decomposition of metal oxides on cycling. Irreversible parasitic reactions cause poor rechargeabili…
Large gap quantum spin Hall insulator, massless Dirac fermions and bilayer graphene analogue in InAs/Ga(In)Sb heterostructures
S. S. Krishtopenko, F. Teppe
The quantum spin Hall insulator (QSHI) state has been demonstrated in two semiconductor systems - HgTe/CdTe quantum wells (QWs) and InAs/GaSb QW bilayers. Unlike the HgTe/CdTe QWs,…
Temperature-induced topological phase transition in HgTe quantum wells
A. M. Kadykov, S. S. Krishtopenko, B. Jouault +9
We report a direct observation of temperature-induced topological phase transition between trivial and topological insulator in HgTe quantum well. By using a gated Hall bar device,…
Skyrmion morphology in ultrathin magnetic films
I. Gross, W. Akhtar, A. Hrabec +8
Nitrogen-vacancy magnetic microscopy is employed in quenching mode as a non-invasive, high resolution tool to investigate the morphology of isolated skyrmions in ultrathin magnetic…
Phonon Spectra in the Parent Superconducting Iron-tuned Telluride FeTe from Inelastic Neutron Scattering and Ab Initio Calculations
Mohamed Zbiri, Romain Viennois
We report inelastic neutron scattering measurements of phonon spectra in the parent superconductor iron-tuned chalcogenide FeTe, for two different x contents (x 0.11…
Exciton-phonon interaction in the strong coupling regime in hexagonal boron nitride
T. Q. P. Vuong, G. Cassabois, P. Valvin +3
The temperature-dependent optical response of excitons in semiconductors is controlled by the exciton-phonon interaction. When the exciton-lattice coupling is weak, the excitonic l…
Temperature-driven single-valley Dirac fermions in HgTe quantum wells
M. Marcinkiewicz, S. Ruffenach, S. S. Krishtopenko +13
We report on temperature-dependent magnetospectroscopy of two HgTe/CdHgTe quantum wells below and above the critical well thickness . Our results, obtained in magnetic fields…