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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

Showing 2019 · cond-mat.mes-hallShow all

18 papers · 2 filters

cond-mat.mes-hall2019

Temperature dependence of photoluminescence lifetime of atomically thin WSe2 layer

Aleksandra Łopion, Mateusz Goryca, Tomasz Smoleński +5

At cryogenic temperatures, the photoluminescence spectrum of monolayer WSe2features a num-ber of lines related to the recombination of so-called localized excitons. The intensity o…

cond-mat.mes-hall2019★ 41 cited

Magneto-optics of a Weyl semimetal beyond the conical band approximation: the case study of TaP

S. Polatkan, M. O. Goerbig, J. Wyzula +10

Landau-level spectroscopy, the optical analysis of electrons in materials subject to a strong magnetic field, is a versatile probe of the electronic band structure and has been suc…

cond-mat.mes-hall2019★ 189 cited

Electronic phase separation in topological surface states of rhombohedral graphite

Yanmeng Shi, Shuigang Xu, Yaping Yang +15

Of the two stable forms of graphite, hexagonal (HG) and rhombohedral (RG), the former is more common and has been studied extensively. RG is less stable, which so far precluded its…

cond-mat.mes-hall2019★ 65 cited

Dark trions govern the temperature-dependent optical absorption and emission of doped atomically thin semiconductors

Ashish Arora, Nils Kolja Wessling, Thorsten Deilmann +7

We perform absorption and photoluminescence spectroscopy of trions in hBN-encapsulated WSe, WS, MoSe, and MoS monolayers, depending on temperature. The different tr…

cond-mat.mes-hall2019★ 23 cited

Exciton-polaritons in multilayer WSe in a planar microcavity

M. Król, K. Rechcińska, K. Nogajewski +10

Due to high binding energy and oscillator strength, excitons in thin flakes of transition metal dichalcogenides constitute a perfect foundation for realizing a strongly coupled lig…

cond-mat.mes-hall2019★ 49 cited

Phase Transition Induced Carrier Mass Enhancement in 2D Ruddlesden-Popper Perovskites

Michal Baranowski, Szymon J. Zelewski, Mikael Kepenekian +10

There is a variety of possible ways to tune the optical properties of 2D perovskites, though the mutual dependence between different tuning parameters hinders our fundamental under…

cond-mat.mes-hall2019★ 56 cited

Giant Fine Structure Splitting of the Bright Exciton in a Bulk MAPbBr Single Crystal

Michal Baranowski, Krzysztof Galkowski, Alessandro Surrente +13

Exciton fine structure splitting in semiconductors reflects the underlying symmetry of the crystal and quantum confinement. Since the latter factor strongly enhances the exchange i…

cond-mat.mes-hall2019★ 10 cited

Breathing modes in few-layer MoTe activated by h-BN encapsulation

M. Grzeszczyk, M. R. Molas, M. Bartoš +3

The encapsulation of few-layer transition metal dichalcogenides (TMDs) in hexagonal boron nitride (h-BN) is known to improve significantly their optical and electronic properties.…

cond-mat.mes-hall2019★ 28 cited

Symmetry breakdown in franckeite: spontaneous strain, rippling and interlayer moiré

Riccardo Frisenda, Gabriel Sanchez-Santolino, Nikos Papadopoulos +9

Franckeite is a naturally occurring layered mineral with a structure composed of alternating stacks of SnS2-like and PbS-like layers. Although this superlattice is composed of a se…

cond-mat.mes-hall2019★ 1 cited

Limits of Validity of Rashba Model in BiTeI: A High-field Magneto-optical Study

S. Bordacs, M. Orlita, M. Sikula +2

It was recently shown that BiTeI, a semiconductor with polar crystal structure, possesses a giant spin-splitting of electrons, which has been interpreted in terms of Rashba-type sp…

cond-mat.mes-hall2019★ 91 cited

Helical quantum Hall phase in graphene on SrTiO

Louis Veyrat, Corentin Déprez, Alexis Coissard +8

The ground state of charge neutral graphene under perpendicular magnetic field was predicted to be a quantum Hall topological insulator with a ferromagnetic order and spin-filtered…

cond-mat.mes-hall2019★ 25 cited

Magneto-spectroscopy of exciton Rydberg states in a CVD grown WSe2 monolayer

A. Delhomme, G. Butseraen, B. Zheng +9

The results of magneto-optical spectroscopy investigations of excitons in a CVD grown monolayer of WSe2 encapsulated in hexagonal boron nitride are presented. The emission linewidt…

cond-mat.mes-hall2019★ 45 cited

Suppressed Auger scattering and tunable light emission of Landau-quantized massless Kane electrons

D. B. But, M. Mittendorff, C. Consejo +9

The Landau level laser has been proposed a long time ago as a unique source of monochromatic radiation, widely tunable in the THz and infrared spectral ranges using an externally a…

cond-mat.mes-hall2019★ 77 cited

Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures

J. Binder, J. Howarth, F. Withers +11

The intriguing physics of carrier-carrier interactions, which likewise affect the operation of light emitting devices, stimulate the research on semiconductor structures at high de…

cond-mat.mes-hall2019★ 66 cited

Two-dimensional conical dispersion in ZrTe5 evidenced by optical spectroscopy

E. Martino, I. Crassee, G. Eguchi +8

Zirconium pentatelluride was recently reported to be a 3D Dirac semimetal, with a single conical band, located at the center of the Brillouin zone. The cone's lack of protection by…

cond-mat.mes-hall2019★ 27 cited

Aperiodic quantum oscillations in the two-dimensional electron gas at the LaAlO3/SrTiO3 interface

Km Rubi, Julien Gosteau, Raphaël Serra +9

Despite several attempts, the intimate electronic structure of two-dimensional electron systems buried at the interface between LaAlO3 and SrTiO3 still remains to be experimentally…

cond-mat.mes-hall2019★ 87 cited

Energy spectrum of two-dimensional excitons in a non-uniform dielectric medium

M. R. Molas, A. O. Slobodeniuk, K. Nogajewski +7

We demonstrate that, in monolayers (MLs) of semiconducting transition metal dichalcogenides, the -type Rydberg series of excitonic states follows a simple energy ladder: $ε_n=-R…

cond-mat.mes-hall2019★ 82 cited

Probing and manipulating valley coherence of dark excitons in monolayer WSe

M. R. Molas, A. O. Slobodeniuk, T. Kazimierczuk +10

Monolayers of semiconducting transition metal dichalcogenides are two-dimensional direct-gap systems which host tightly-bound excitons with an internal degree of freedom correspond…