391 citations · 1.3k across the 34 of their papers we have counts for
35 papers
Room temperature magnetic vortices in the van der Waals magnet FeGeTe
Elias Sfeir, Carolin Schrader, Florentin Fabre +8
We investigate the effect of confinement on the magnetic state of a 12 nm-thick FeGeTe layer grown by molecular beam epitaxy. We use quantitative scanning NV magnetometry t…
Enhanced optical properties of MoSe grown by molecular beam epitaxy on hexagonal boron nitride
C. Vergnaud, V. Tiwari, L. Ren +8
Transition metal dichalcogenides (TMD) like MoSe exhibit remarkable optical properties such as intense photoluminescence (PL) in the monolayer form. To date, narrow-linewidth P…
Two-dimensional to bulk crossover of the WSe electronic band structure
Patrick Le Fèvre, Raphaël Salazar, Matthieu Jamet +8
Transition Metal Dichalcogenides (TMD) are layered materials obtained by stacking two-dimensional sheets weakly bonded by van der Waals interactions. In bulk TMD, band dispersions…
Magnetic evolution of CrTe epitaxially grown on graphene with post-growth annealing
Quentin Guillet, Hervé Boukari, Fadi Choueikani +10
Two-dimensional and van der Waals ferromagnets are ideal platform to study low dimensional magnetism and proximity effects in van der Waals heterostructures. Their ultimate two dim…
Angular dependence of the interlayer coupling at the interface between two dimensional materials 1T-PtSe and graphene
P. Mallet, F. Ibrahim, K. Abdukayumov +6
We present a study by Scanning Tunneling Microscopy, supported by ab initio calculations, of the interaction between graphene and monolayer (semiconducting) PtSe as a function…
Mapping domain junctions using 4D-STEM: toward controlled properties of epitaxially grown transition metal dichalcogenide monolayers
Djordje Dosenovic, Samuel Dechamps, Celine Vergnaud +10
Epitaxial growth has become a promising route to achieve highly crystalline continuous two-dimensional layers. However, high-quality layer production with expected electrical prope…
Atomic-layer controlled THz Spintronic emission from Epitaxially grown Two dimensional PtSe/ferromagnet heterostructures
K. Abdukayumov, M. Mičica, F. Ibrahim +19
Terahertz (THz) Spintronic emitters based on ferromagnetic/metal junctions have become an important technology for the THz range, offering powerful and ultra-large spectral bandwid…
Epitaxial van der Waals heterostructures of Cr2Te3 on 2D materials
Quentin Guillet, Libor Vojacek, Djordje Dosenovic +16
Achieving large-scale growth of two-dimensional (2D) ferromagnetic materials with high Curie temperature (TC) and perpendicular magnetic anisotropy (PMA) is highly desirable for th…
Visualizing giant ferroelectric gating effects in large-scale WSe/BiFeO heterostructures
Raphaël Salazar, Sara Varotto, Céline Vergnaud +13
Multilayers based on quantum materials (complex oxides, topological insulators, transition-metal dichalcogenides, etc) have enabled the design of devices that could revolutionize m…
Alloying 2D VSe2 with Pt: from a charge density wave state to a disordered insulator
E. Velez-Fort, P. Mallet, H. Boukari +5
We have analyzed by means of scanning tunneling microscopy and spectroscopy the atomic and electronic structure of monolayers of 1T-VxPt1-xSe2 alloys grown by molecular beam epitax…
Evidence for Highly p-type doping and type II band alignment in large scale monolayer WSe2 /Se-terminated GaAs heterojunction grown by Molecular beam epitaxy
Debora Pierucci, Aymen Mahmoudi, Mathieu Silly +10
Two-dimensional materials (2D) arranged in hybrid van der Waals (vdW) heterostructures provide a route toward the assembly of 2D and conventional III-V semiconductors. Here, we rep…
Hybridization and localized flat band in the WSe2/MoSe2 heterobilayer grown by molecular beam epitaxy
Lama Khalil, Debora Pierucci, Emilio Velez +9
Nearly localized moire flat bands in momentum space, arising at particular twist angles, are the key to achieve correlated effects in transition-metal dichalcogenides. Here, we use…
Phonon dynamics and thermal conductivity of PtSe2 thin films: Impact of crystallinity and film thickness on heat dissipation
Alexandros El Sachat, Peng Xiao, Davide Donadio +11
We present a comparative investigation of the influence of crystallinity and film thickness on the acoustic and thermal properties of 2D layered PtSe2 thin films of varying thickne…
High carrier mobility in single-crystal PtSe2 grown by molecular beam epitaxy on ZnO(0001)
Frédéric Bonell, Alain Marty, Céline Vergnaud +5
PtSe2 is attracting considerable attention as a high mobility two-dimensional material with envisionned applications in microelectronics, photodetection and spintronics. The growth…
Large-scale epitaxy of two-dimensional van der Waals room-temperature ferromagnet Fe5GeTe2
Mário Ribeiro, Giulio Gentile, Alain Marty +12
In recent years, two-dimensional van der Waals materials have emerged as an important platform for the observation of long-range ferromagnetic order in atomically thin layers. Alth…
Coexistence of ferromagnetism and spin-orbit coupling by incorporation of platinum in two-dimensional VSe
E. Vélez-Fort, A. Hallal, R. Sant +20
We report on a novel material, namely two-dimensional (2D) VPtSe alloy, exhibiting simultaneously ferromagnetic order and Rashba spin-orbit coupling. While ferromag…
Large Rashba unidirectional magnetoresistance in the Fe/Ge(111) interface states
T. Guillet, C. Zucchetti, A. Marty +8
The structure inversion asymmetry at surfaces and interfaces give rise to the Rashba spin-orbit interaction (SOI), that breaks the spin degeneracy of surface or interface states. H…
Synthesis of epitaxial monolayer Janus SPtSe
R. Sant, M. Gay, A. Marty +10
Janus single-layer transition metal dichalcogenides, in which the two chalcogen layers have a different chemical nature, push chemical composition control beyond what is usually ac…
Spin-orbitronics at a topological insulator-semiconductor interface
T. Guillet, C. Zucchetti, A. Marchionni +9
Topological insulators (TIs) hold great promises for new spin-related phenomena and applications thanks to the spin texture of their surface states. However, a versatile platform a…
New approach for the molecular beam epitaxy growth of scalable single-crystalline WSe monolayers
Céline Vergnaud, Minh-Tuan Dau, Benjamin Grévin +4
The search for high-quality transition metal dichalcogenides mono- and multi-layers grown on large areas is still a very active field of investigation nowadays. Here, we use molecu…
The valley Nernst effect in WSe
Minh-Tuan Dau, Céline Vergnaud, Alain Marty +9
The Hall effect can be extended by inducing a temperature gradient in lieu of electric field that is known as the Nernst (-Ettingshausen) effect. The recently discovered spin Nerns…
Van der Waals epitaxy of Mn-doped MoSe on mica
M. T. Dau, C. Vergnaud, M. Gay +8
The magnetic order associated with the degree of freedom of spin in two-dimensional (2D) materials is subjected to intense investigation because of its potential application in 2D…
Observation of Large Unidirectional Rashba Magnetoresistance in Ge(111)
T. Guillet, C. Zucchetti, Q. Barbedienne +8
Relating magnetotransport properties to specific spin textures at surfaces or interfaces is an intense field of research nowadays. Here, we investigate the variation of the electri…
Van der Waals solid phase epitaxy to grow large-area manganese-doped MoSe few-layers on SiO/Si
C. Vergnaud, M. Gay, C. Alvarez +10
Large-area growth of continuous transition metal dichalcogenides (TMDCs) layers is a prerequisite to transfer their exceptional electronic and optical properties into practical dev…