A5002978002- 2D Materials and Applications
- Quantum and electron transport phenomena
- Magnetic properties of thin films
- Interconnection Networks and Systems
- Topological Materials and Phenomena
- Molecular Junctions and Nanostructures
- Particle Detector Development and Performance
- Perovskite Materials and Applications
- Organic and Molecular Conductors Research
- Quantum Mechanics and Non-Hermitian Physics
- Magnetic Field Sensors Techniques
- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Negative Capacitance Devices
- Advanced Thermoelectric Materials and Devices
- Quantum, superfluid, helium dynamics
- Chalcogenide Semiconductor Thin Films
- Advanced Condensed Matter Physics
- MXene and MAX Phase Materials
- Strong Light-Matter Interactions
- Graph Theory and Algorithms
- Metamaterials and Metasurfaces Applications
- Advanced Memory and Neural Computing
- Surface and Thin Film Phenomena
- ZnO doping and properties
- Boron and Carbon Nanomaterials Research
École Polytechnique Fédérale de Lausanne
2022-2025
Materials Science & Engineering
2023
KTH Royal Institute of Technology
2020
Interactions between out-of-plane dipoles in bosonic gases enable the long-range propagation of excitons. The lack direct control over collective dipolar properties has so far limited degrees tunability and microscopic understanding exciton transport. In this work we modulate layer hybridization interplay many-body interactions excitons a van der Waals heterostructure with an applied vertical electric field. By performing spatiotemporally resolved measurements supported by theory, uncover...
van der Waals heterostructures of two-dimensional materials have unveiled frontiers in condensed matter physics, unlocking unexplored possibilities electronic and photonic device applications. However, the investigation wide-gap, high-κ layered dielectrics for devices based on structures has been relatively limited. In this work, we demonstrate an easily reproducible synthesis method rare-earth oxyhalide LaOBr, exfoliate it as a 2D material with measured static dielectric constant 9 wide...
Chirality, a basic property of symmetry breaking, is crucial for fields such as biology and physics. Recent advances in the study chiral systems have stimulated interest discovery symmetry-breaking states that enable exotic phenomena spontaneous gyrotropic order superconductivity. Here we examine interaction between light chirality electron spins indium selenide effect magnetic field on emerging tunnelling photocurrents at Van Hove singularity. Although symmetric under linearly polarized...
Abstract Two-dimensional flat-band systems have recently attracted considerable interest due to the rich physics unveiled by emergent phenomena and correlated electronic states at van Hove singularities. However, difficulties in electrically detecting position field-effect structures are slowing down investigation of their properties. In this work, we use indium selenide (InSe) as a system singularity valence-band edge few-layer form material without requirement twist angle. We investigate...
The Nernst effect, a transverse thermoelectric phenomenon, has attracted significant attention for its potential in energy conversion, thermoelectrics and spintronics. However, achieving high performance versatility at low temperatures remains elusive. Here we demonstrate large electrically tunable effect by combining the electrical properties of graphene with semiconducting characteristics indium selenide field-effect geometry. Our results establish new platform exploring manipulating this...
Interactions among a collection of particles generate many-body effects in solids that result striking modifications material properties. The heavy carrier mass yields strong interactions and gate control density over wide range makes two-dimensional semiconductors an exciting playground to explore physics. family III-VI metal monochalcogenides emerges as new platform for this purpose because its excellent optical properties the flat valence band dispersion. In work, we present complete...
The Nernst effect, a transverse thermoelectric phenomenon, has attracted significant attention for its potential in energy conversion, thermoelectrics, and spintronics. However, achieving high performance versatility at low temperatures remains elusive. Here, we demonstrate large electrically tunable effect by combining graphene's electrical properties with indium selenide's semiconducting nature field-effect geometry. Our results establish novel platform exploring manipulating this...
We demonstrate a 20-fold enhancement in the strength of Ruderman–Kittel–Kasuya–Yosida interlayer exchange dilute-ferromagnet/normal-metal multilayers by incorporating ultrathin Fe layers at interfaces. Additionally, resulting increase interface magnetic polarization profoundly affects finite-size effects, sharpening Curie transition multilayer, while allowing us to separately tune its temperature via intra-layer dilution. These results should be useful for designing functional materials...
Interactions among a collection of particles generate many-body effects in solids resulting striking modifications material properties. The heavy carrier mass that yields strong interactions and gate control density over wide range, make two-dimensional semiconductors an exciting playground to explore physics. family III-VI metal monochalcogenides emerges as new platform for this purpose due its excellent optical properties the flat valence band dispersion with Mexican-hat-like inversion. In...
Interactions between out-of-plane dipoles in bosonic gases enable the long-range propagation of excitons. The lack direct control over collective dipolar properties has hitherto limited degrees tunability and microscopic understanding exciton transport. In this work, we modulate layer hybridization interplay many-body interactions excitons a van der Waals heterostructure with an applied vertical electric field. By performing spatiotemporally resolved measurements supported by theory, uncover...
Two-dimensional flat-band systems have recently attracted considerable interest due to the rich physics unveiled by emergent phenomena and correlated electronic states at van Hove singularities. However, difficulties in electrically detecting flat band position field-effect structures are slowing down investigation of their properties. In this work, we employ Indium Selenide (InSe) as a system singularity valence edge few-layer form material without requirement twist angle. We investigate...
Van der Waals heterostructures of two-dimensional materials have opened up new frontiers in condensed matter physics, unlocking unexplored possibilities electronic and photonic device applications. However, the investigation wide-gap high-$κ$ layered dielectrics for devices based on van structures has been relatively limited. In this work, we demonstrate an easily reproducible synthesis method rare earth oxyhalide LaOBr, exfoliate it as a 2D material with measured static dielectric constant...
Magnetic properties of multilayered [Fe–Cr/Cr]×8 nanostructures with the interlayer exchange coupling antiferromagnetic type and without have been studied. The values saturation magnetization constant are shown to strongly depend on thickness non-magnetic dilution Fe–Cr layers. It is found that those parameters differently affect coupling, which explained by an interplay between size effect (the layers) magnetic polarization Fe–Cr/Cr interfaces depending Fe concentration.
The magnetocaloric effect in exchange-coupled synthetic-antiferromagnet multilayers is investigated experimentally and theoretically. We observe a temperature-controlled inversion of the effect, where entropy increases on switching individual ferromagnetic layers from anti-parallel to parallel alignment near their Curie point. Using microscopic analytical model as well numerical atomistic-spin simulations system, we explain observed due interplay between intra- inter-layer exchange...