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Optical detection of the sliding ferroelectric switching in hBN with a WSe2 monolayer
Sébastien Roux, Jules Fraunié, Kenji Watanabe +3
When two BN layers are stacked in parallel in an AB or BA arrangement, a spontaneous out-of-plane electric polarization arises due to charge transfer in the out-of-plane B-N bonds.…
Large trion binding energy in monolayer WS via strain-enhanced electron-phonon coupling
Yunus Waheed, Sumitra Shit, Jithin T Surendran +4
Transition metal dichalcogenides and related layered materials in their monolayer and a few layers thicknesses regime provide a promising optoelectronic platform for exploring the…
Impact of Device Resistances in the Performance of Graphene-based Terahertz Photodetectors
O. Castelló, Sofía M. López Baptista, K. Watanabe +6
In recent years, graphene Field-Effect-Transistors (GFETs) have demonstrated an outstanding potential for Terahertz (THz) photodetection due to their fast response and high-sensiti…
Crossover from Conventional to Unconventional Superconductivity in 2M-WS2
Piumi Samarawickrama, Joseph McBride, Sabin Gautam +8
Leveraging reciprocal-space proximity effect between superconducting bulk and topological surface states (TSSs) offers a promising way to topological superconductivity. However, el…
Moire magnetism in CrBr3 multilayers emerging from differential strain
Fengrui Yao, Dario Rossi, Ivo A. Gabrovski +8
Interfaces between twisted 2D materials host a wealth of physical phenomena originating from the long-scale periodicity associated with the resulting moire structure. Besides twist…
Composite fermions and parton wavefunctions in twisted graphene on hexagonal boron nitride
J. Salvador-Sánchez, A. Pérez-Rodriguez, V. Clericò +7
In a twisted graphene on hexagonal Boron Nitride, the presence of a gap and the breaking of the symmetry between carbon sublattices leads to multicomponent fractional quantum Hall…
Rydberg series of intralayer K-excitons in WSe multilayers
Piotr Kapuscinski, Artur O. Slobodeniuk, Alex Delhomme +6
Semiconducting transition metal dichalcogenides of group VI are well-known for their prominent excitonic effects and the transition from an indirect to a direct band gap when reduc…
Impact of the angular alignment on the crystal field and intrinsic doping of bilayer graphene/BN heterostructures
L. S. Farrar, G. Maffione, V. -H. Nguyen +5
The ability to tune the energy gap in bilayer graphene makes it the perfect playground for the study of the effects of internal electric fields, such as the crystalline field, whic…
Absence of heat flow in ν = 0 quantum Hall ferromagnet in bilayer graphene
Ravi Kumar, Saurabh Kumar Srivastav, Ujjal Roy +6
The charge neutrality point of bilayer graphene, denoted as ν = 0 state, manifests competing phases marked by spontaneously broken isospin (spin/valley/layer) symmetries under exte…
Superconductivity and spin canting in spin-orbit proximitized rhombohedral trilayer graphene
Caitlin L. Patterson, Owen I. Sheekey, Trevor B. Arp +15
Graphene and transition metal dichalcogenide flat-band systems show similar phase diagrams, replete with magnetic and superconducting phases. An abiding question has been whether m…
Featuring nuanced electronic band structure in gapped multilayer graphene
Jin Jiang, Qixuan Gao, Zekang Zhou +6
Moiré systems featuring flat electronic bands exhibit a vast landscape of emergent exotic quantum states, making them one of the resourceful platforms in condensed matter physics i…
Direct magnetic imaging of fractional Chern insulators in twisted MoTe with a superconducting sensor
Evgeny Redekop, Canxun Zhang, Heonjoon Park +10
In the absence of time reversal symmetry, orbital magnetization provides a sensitive probe of topology and interactions, with particularly rich phenomenology in Chern insulators wh…
Thermopower probing emergent local moments in magic-angle twisted bilayer graphene
Ayan Ghosh, Souvik Chakraborty, Ranit Dutta +7
Recent experiments on magic-angle twisted bilayer graphene (MATBLG) have revealed the formation of flatbands, suggesting that correlation effects are likely to dominate in this sys…
Reversible optical data storage below the diffraction limit
Richard Monge, Tom Delord, Carlos A. Meriles
Color centers in wide-bandgap semiconductors feature metastable charge states that can be interconverted with the help of optical excitation at select wavelengths. The distinct flu…
Interplay of Landau quantization and interminivalley scatterings in a weakly coupled moiré superlattice
Yalong Yuan, Le Liu, Jundong Zhu +9
Double layer quantum systems are promising platforms for realizing novel quantum phases. Here, we report a study of quantum oscillations (QOs) in a weakly coupled double layer syst…