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19962026
most citedDirect Measurement of the Exciton Binding Energy and Effective Masses for Charge carriers in an Organic-Inorganic Tri-halide Perovskite

2.1k citations

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317 papers · 1 filter

cond-mat.mes-hall2026

Magnetic field tuning of modulated magnetic orders in CrOCl at the two-dimensional limit

T. Riccardi, A. Pawbake, S. Badola +9

Chromium oxychloride is a van der Waals magnet with intrinsic competing exchange interactions, including a strong antiferromagnetic one, source of a very rich magnetic phase diagra…

cond-mat.mes-hall2025

Non-Hermitian topological devices with Chern insulators

Kyrylo Ochkan, Michael Wissmann, Louis Veyrat +9

Multi-terminal topological devices are a new generation of electronic devices with quantized properties robust against imperfections. In magnetic topological insulators, dissipatio…

cond-mat.mes-hall2025

Spontaneous Breaking of the SU(3) Flavor Symmetry in a Quantum Hall Valley Nematic

G. Krizman, A. Kazakov, C. -W. Cho +10

Two-dimensional quantum materials can host original electronic phases that arise from the interplay of electronic correlations, symmetry and topology. In particular, the spontaneou…

cond-mat.mes-hall2025★ 5 cited

Deconstruction of the anisotropic magnetic interactions from spin-entangled optical excitations in van der Waals antiferromagnets

Dipankar Jana, Swagata Acharya, Milan Orlita +5

Magneto-optical excitations in antiferromagnetic d systems can originate from a multiplicity of light-spin and spin-spin interactions, as the light and spin degrees of freedom can…

cond-mat.mes-hall2025

Wide Electrical Tunability of the Valley Splitting in a Doubly gated Silicon-on-Insulator Quantum Well

Nathan Aubergier, Vincent T. Renard, Sylvain Barraud +2

The valley splitting of 2D electrons in doubly-gated silicon-on-insulator quantum wells is studied by low temperature transport measurements under magnetic fields. At the buried th…

cond-mat.mes-hall2025★ 6 cited

Magnetic phases and zone-folded phonons in a frustrated van der Waals magnet

A. Pawbake, F. Petot, F. Le Mardelé +14

2D magnetic materials have attracted extensive research interest due to their potential application in nanospintronics, optospintronics, and in magnonics. Ferromagnetic as well as…

cond-mat.mes-hall2025★ 11 cited

Distinct Magneto-Optical Response of Frenkel and Wannier Excitons in CrSBr

Maciej Smiertka, Michal Rygala, Katarzyna Posmyk +10

This study shows that CrSBr hosts Frenkel-like and Wannier-Mott-like excitons whose distinct spatial character explains their contrasting sensitivity to magnetic order and lattice…

cond-mat.mes-hall2025

Nonlinear Terahertz Electroluminescence from Dirac Landau Polaritons

B. Benhamou-Bui, C. Consejo, S. S. Krishtopenko +15

We report Dirac Landau polaritons observed by terahertz (THz) magnetoreflectivity spectroscopy, demonstrating strong coupling between cyclotron transitions of two-dimensional (2D)…

cond-mat.mes-hall2024★ 1 cited

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…

cond-mat.mes-hall2024

Non-Hermitian topology in the quantum Hall effect of graphene

Burak Özer, Kyrylo Ochkan, Raghav Chaturvedi +12

Quantum Hall phases have recently emerged as a platform to investigate non-Hermitian topology in condensed-matter systems. This platform is particularly interesting due to its tuna…

cond-mat.mes-hall2024★ 10 cited

Approaching the Intrinsic Properties of Moiré Structures Using Atomic Force Microscopy Ironing

Swaroop Kumar Palai, Mateusz Dyksik, Nikodem Sokolowski +12

Stacking monolayers of transition metal dichalcogenides (TMDs) has led to the discovery of a plethora of new exotic phenomena, resulting from moiré pattern formation. Due to the at…

cond-mat.mes-hall2024★ 4 cited

Dissipationless transport signature of topological nodal lines

Arthur Veyrat, Klaus Koepernik, Louis Veyrat +12

Topological materials, such as topological insulators or semimetals, usually not only reveal the nontrivial properties of their electronic wavefunctions through the appearance of s…

cond-mat.mes-hall2024

Room temperature Planar Hall effect in nanostructures of trigonal-PtBi2

Arthur Veyrat, Klaus Koepernik, Louis Veyrat +13

Trigonal-PtBi2 has recently garnered significant interest as it exhibits unique superconducting topological surface states due to electron pairing on Fermi arcs connecting bulk Wey…

cond-mat.mes-hall2024★ 13 cited

Quadrupolar Excitons in MoSe Bilayers

Jakub Jasiński, Joakim Hagel, Samuel Brem +11

The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterost…

cond-mat.mes-hall2024★ 12 cited

Observation of spin-electric transitions in a molecular exchange qubit

Florian le Mardelé, Ivan Mohelský, Jan Wyzula +4

Electric fields represent an ideal means for controlling spins at the nanoscale and, more specifically, for manipulating protected degrees of freedom in multispin systems. Here we…

cond-mat.mes-hall2023★ 3 cited

Magneto-optical response of the Weyl semimetal NbAs: Experimental results and hyperbolic-band computations

S. Polatkan, E. Uykur, J. Wyzula +5

The magneto-optical properties of (001)-oriented NbAs single crystals have been studied in the spectral range from 5 to 150 meV and in magnetic fields of up to 13 T. A rich spectru…

cond-mat.mes-hall2023★ 3 cited

Exchange gap in GdPtBi probed by magneto-optics

S. Polatkan, E. Uykur, I. Mohelsky +6

We measured the magneto-reflectivity spectra (4 - 90 meV, 0 - 16 T) of the triple-point semimetal GdPtBi and found them to demonstrate two unusual broad features emerging in field.…

cond-mat.mes-hall2023★ 8 cited

Raman scattering excitation in monolayers of semiconducting transition metal dichalcogenides

M. Zinkiewicz, M. Grzeszczyk, T. Kazimierczuk +10

Raman scattering excitation (RSE) is an experimental technique in which the spectrum is made up by sweeping the excitation energy when the detection energy is fixed. We study the l…

cond-mat.mes-hall2023★ 33 cited

Magneto-optical sensing of the pressure driven magnetic ground states in bulk CrSBr

A. Pawbake, T. Pelini, I. Mohelsky +13

Competition between exchange interactions and magnetocrystalline anisotropy may bring new magnetic states that are of great current interest. An applied hydrostatic pressure can fu…

cond-mat.mes-hall2023★ 1 cited

Plasmon-plasmon interaction and the role of buffer in epitaxial graphene micro-flakes

Mykhailo Shestopalov, Václav Dědič, Martin Rejhon +7

We investigate the origin of the translational symmetry breaking in epitaxially grown single-layer graphene. Despite the surface morphology of homogeneous graphene films influenced…

cond-mat.mes-hall2023

Self-doped graphite nanobelts

Bruno Cury Camargo, Banan El-Kerdi, Andrei Alaferdov +1

We report that mechanical deformation of graphite with cavity shock waves introduces a new group of charge carriers, with both effective mass and native concentration one order of…

cond-mat.mes-hall2023★ 16 cited

Terahertz cyclotron emission from two-dimensional Dirac fermions

S. Gebert, C. Consejo, S. S. Krishtopenko +13

Since the emergence of graphene, we have seen several proposals for the realization of Landau lasers tunable over the terahertz frequency range. The hope was that the non-equidista…

cond-mat.mes-hall2022★ 38 cited

Mixing of surface and bulk electronic states at a graphite-hexagonal boron nitride interface

Ciaran Mullan, Sergey Slizovskiy, Jun Yin +12

Van der Waals assembly enables exquisite design of electronic states in two-dimensional (2D) materials, often by superimposing a long-wavelength periodic potential on a crystal lat…

cond-mat.mes-hall2022★ 24 cited

Microscopic parameters of the van der Waals CrSBr antiferromagnet from microwave absorption experiments

C. W. Cho, A. Pawbake, N. Aubergier +6

Microwave absorption experiments employing a phase-sensitive external resistive detection are performed for a topical van der Waals antiferromagnet CrSBr. The field dependence of t…