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cond-mat.mes-hall2026

Zandpack: A General Tool for Time-dependent Transport Simulation of Nanoelectronics

Aleksander Bach Lorentzen, Alexander Croy, Antti-Pekka Jauho +1

The auxiliary mode approach to time-dependent open quantum system calculations is implemented and refined to yield a feasible computational approach to simulate nanostructures far…

cond-mat.mes-hall2026★ 1 cited

Spin Hall and Edelstein effects in a ballistic quantum dot with Rashba spin-orbit coupling

Alfonso Maiellaro, Francesco Romeo, Mattia Trama +11

We study spin-resolved transport in a ballistic quantum dot with Rashba spin-orbit coupling, focusing on charge-to-spin conversion and spin Hall effect. In the regime where the dot…

cond-mat.mes-hall2025★ 1 cited

Theory of single-photon emission from neutral and charged excitons in a polarization-selective cavity

Luca Vannucci, Niels Gregersen

Single-photon sources based on neutral or charged excitons in a semiconductor quantum dot are attractive resources for photonic quantum computers and simulators. To obtain indistin…

cond-mat.mes-hall2025

Observation of tunable chiral spin textures with nonlinear optics

Youqiang Huang, Tiago V. C. Antao, Adolfo O. Fumega +14

Chiral spin textures, such as spin spirals and skyrmions, are key to advancing spintronics by enabling ultrathin, energy-efficient memory, and high-density data storage and process…

cond-mat.mes-hall2025★ 2 cited

Printable Nanocomposites with Superparamagnetic Maghemite (-FeO) Particles for Microinductor-core Applications

Mathias Zambach, Miriam Varón, Thomas Veile +8

We here present printable and castable magnetic nanocomposites containing superparamagnetic 113 nm -FeO particles in an insulating poly-vinyl alcohol polymer matrix…

cond-mat.mes-hall2025★ 1 cited

Quantum transport in nitrogen-doped nanoporous graphenes

Gaetano Calogero, Isaac Alcón, Alan E. Anaya Morales +6

Bottom-up on-surface synthesized nanoporous graphenes (NPGs), realized as 2D arrays of laterally covalently bonded -conjugated graphene nanoribbons (GNRs), are a family of carbo…

cond-mat.mes-hall2025★ 11 cited

Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride

Amedeo Carbone, Diane-Pernille Bendixen-Fernex de Mongex, Arkady V. Krasheninnikov +6

We highlight recent advances in the controlled creation of single-photon emitters in van der Waals materials and in the understanding of their atomistic origin. We focus on quantum…

cond-mat.mes-hall2025★ 42 cited

Roadmap on Nonlocality in Photonic Materials and Metamaterials

Francesco Monticone, N. Asger Mortensen, Antonio I. Fernández-Domínguez +63

Photonic technologies continue to drive the quest for new optical materials with unprecedented responses. A major frontier in this field is the exploration of nonlocal (spatially d…

cond-mat.mes-hall2025★ 5 cited

Quantifying the creation of negatively charged boron vacancies in He-ion irradiated hexagonal boron nitride

Amedeo Carbone, Ilia D. Breev, Johannes Figueiredo +10

Hexagonal boron nitride (hBN) hosts luminescent defects possessing spin qualities compatible with quantum sensing protocols at room temperature. Vacancies, in particular, are readi…

cond-mat.mes-hall2024★ 3 cited

Interface engineering of van der Waals heterostructures towards energy-efficient quantum devices operating at high temperatures

Manh-Ha Doan, Peter Bøggild

Quantum devices, which rely on quantum mechanical effects for their operation, may offer advantages, such as reduced dimensions, increased speed, and energy efficiency, compared to…

cond-mat.mes-hall2024★ 9 cited

Electron energy-loss spectrum and exciton band structure of monolayer studied by ab initio Bethe-Salpeter equation calculations

Yun-Chen Shih, Fredrik Andreas Nilsson, Guang-Yu Guo

Bounded excitons in transition metal dichalcogenides monolayers lead to numerous opto-electronic applications, which require a detailed understanding of the exciton dynamics. The d…

cond-mat.mes-hall2024★ 4 cited

Robust quantum engineering of current flow in carbon nanostructures at room temperature

Gaetano Calogero, Isaac Alcón, Onurcan Kaya +4

Bottom-up on-surface synthesis enables the fabrication of carbon nanostructures with atomic precision. Good examples are graphene nanoribbons (GNRs), 1D conjugated polymers, and na…

cond-mat.mes-hall2024★ 4 cited

One-dimensional photonic wire as a single-photon source: Implications of cavity QED to a phonon bath of reduced dimensionality

José Ferreira Neto, Matias Bundgaard-Nielsen, Niels Gregersen +1

While the semiconductor quantum dot placed in a solid-state material allows for deterministic emission of single photons, the photon indistinguishability is strongly influenced by…

cond-mat.mes-hall2024★ 9 cited

Quadrupolar and dipolar excitons in symmetric trilayer heterostructures: Insights from first principles theory

Thorsten Deilmann, Kristian Sommer Thygesen

Excitons in van der Waals heterostructures come in many different forms. In bilayer structures, the electron and hole may be localized on the same layer or they may be separated fo…

cond-mat.mes-hall2024★ 3 cited

First Principles Study of Electronic Structure and Transport in Graphene Grain Boundaries

Aleksander Bach Lorentzen, Fei Gao, Peter Bøggild +2

Grain boundaries play a major role for electron transport in graphene sheets grown by chemical vapor deposition. Here we investigate the electronic structure and transport properti…

cond-mat.mes-hall2023★ 19 cited

Visualizing thickness-dependent magnetic textures in few-layer

Andriani Vervelaki, Kousik Bagani, Daniel Jetter +6

Magnetic ordering in two-dimensional (2D) materials has recently emerged as a promising platform for data storage, computing, and sensing. To advance these developments, it is vita…

cond-mat.mes-hall2023★ 3 cited

Dark-Field X-ray Microscopy for 2D and 3D imaging of Microstructural Dynamics at the European X-ray Free Electron Laser

Sara J. Irvine, Kento Katagiri, Trygve M. Ræder +26

Dark field X-ray microscopy (DXFM) can visualize microstructural distortions in bulk crystals. Using the femtosecond X-ray pulses generated by X-ray free-electron lasers (XFEL), DF…

cond-mat.mes-hall2023★ 17 cited

Weyl points on non-orientable manifolds

André Grossi Fonseca, Sachin Vaidya, Thomas Christensen +3

Weyl fermions are hypothetical chiral particles that can also manifest as excitations near three-dimensional band crossing points in lattice systems. These quasiparticles are subje…

cond-mat.mes-hall2023★ 8 cited

Beam induced heating in electron microscopy modeled with machine learning interatomic potentials

Cuauhtemoc Nuñez Valencia, William Bang Lomholdt, Matthew Helmi Leth Larsen +2

We develop a combined theoretical and experimental method for estimating the amount of heating that occurs in metallic nanoparticles that are being imaged in an electron microscope…

cond-mat.mes-hall2023★ 1 cited

Manipulation of magnetization and spin transport in hydrogenated graphene with THz pulses

Jakob Kjærulff Svaneborg, Aleksander Bach Lorentzen, Fei Gao +2

Terahertz (THz) field pulses can now be applied in Scanning Tunnelling Microscopy (THz-STM) junction experiments to study time resolved dynamics. The relatively slow pulse compared…

cond-mat.mes-hall2023★ 6 cited

Design of superparamagnetic nanoparticle-materials for high-frequency inductor cores

Mathias Zambach, Ziwei Ouyang, Matti Knaapila +2

The progress in the semiconductor industry has resulted in great demand for high-frequency magnetic materials applicable in microfabricated inductor cores. Nanocomposite materials,…

cond-mat.mes-hall2023★ 41 cited

Localization and interaction of interlayer excitons in MoSe/WSe heterobilayers

Hanlin Fang, Qiaoling Lin, Yi Zhang +6

Transition metal dichalcogenide (TMD) heterobilayers provide a versatile platform to explore unique excitonic physics via properties of the constituent TMDs and external stimuli. I…

cond-mat.mes-hall2023★ 2 cited

Spin-Hall Current and Nonlocal Transport in Ferromagnet-Free Multi-band models for SrTiO3-Based Nanodevices in the presence of impurities

Domenico Giuliano, Andrea Nava, Carmine Antonio Perroni +3

We compute the spin-Hall conductance in a multiband model describing the two-dimensional electron gas formed at a LaAlO3/SrTiO3 interface in the presence of a finite concentration…

cond-mat.mes-hall2023★ 10 cited

Cryogenic Multiplexing with Bottom-Up Nanowires

Dāgs Olšteins, Gunjan Nagda, Damon J. Carrad +5

Bottom-up grown nanomaterials play an integral role in the development of quantum technologies. Among these, semiconductor nanowires (NWs) are widely used in proof-of-principle exp…