Showing cond-mat.mes-hallShow all

154 papers · 1 filter

cond-mat.mes-hall2026

Tuning correlated states of twisted mono-bilayer graphene with proximity-induced spin-orbit coupling

Jeyong Park, Mingdi Luo, Louk Rademaker +3

We study the correlated ground states of twisted mono-bilayer graphene with and without proximity-induced spin-orbit coupling (SOC) from a transition-metal dichalcogenide layer pla…

cond-mat.mes-hall2025

Impact of the valence band on Rydberg excitons in cuprous oxide quantum wells

Niklas Scheuler, Jörg Main, Patric Rommel +3

The complex valence band structure of bulk cuprous oxide necessitates going beyond the parabolic approximation to precisely estimate exciton binding energies. The same is true for…

cond-mat.mes-hall2025

Optical conductivity and band gap in the double-Weyl candidate SrSi2 at ambient pressure

L. Z. Maulana, A. A. Tsirlin, E. Uykur +4

We probe the possible double-Weyl state in cubic SrSi2 using optical spectroscopy. The complex optical conductivity was measured in a frequency range from 70 to 22 000 cm-1 at temp…

cond-mat.mes-hall2025★ 1 cited

Charge transfer between van der Waals coupled metallic 2D layers

Bharti Matta, Philipp Rosenzweig, Craig Polley +2

Van der Waals heterostructures have become a rapidly growing field in condensed matter research, offering a platform to engineer novel quantum systems by stacking different two-dim…

cond-mat.mes-hall2025★ 1 cited

Wavefunctions and oscillator strengths of Rydberg excitons in cuprous oxide quantum wells

Leon Kühner, Patric Rommel, Jörg Main +2

We investigate the eigenstates, that is, the wavefunctions of Rydberg excitons in cuprous oxide quantum wells and derive expressions relating them to the oscillator strengths of di…

cond-mat.mes-hall2025

Quantum defects of Rydberg excitons in cuprous oxide: A semiclassical spherical model

Jan Ertl, Patric Rommel, Jörg Main

Excitons, i.e. the bound states of an electron and a positively charged hole are the solid state analogue of the hydrogen atom. As such they exhibit a Rydberg series, which in cupr…

cond-mat.mes-hall2025★ 1 cited

Bound states in the continuum in cuprous oxide quantum wells

Angelos Aslanidis, Jörg Main, Patric Rommel +2

We propose a realistic semiconductor system containing bound states in the continuum (BICs) which allows for a practical realization. By varying the confinement strength of exciton…

cond-mat.mes-hall2025★ 6 cited

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster +2

Intercalation is a robust approach for modulating the properties of epitaxial graphene on SiC and stabilizing two-dimensional (2D) intercalant layers at the graphene/SiC interface.…

cond-mat.mes-hall2024★ 16 cited

Observation of liquid-solid transition of nanoconfined water at ambient temperature

Wentian Zheng, Shichen Zhang, Jian Jiang +8

Nanoconfined water plays an indispensable role in various phenomena in biology, chemistry, and engineering. It exhibits many abnormal properties compared to bulk water, especially…

cond-mat.mes-hall2024★ 3 cited

Interlayer charge transfer induced by electronic instabilities in the natural van der Waals hetrostructure 4H-TaS

R. Mathew Roy, X. Feng, M. Wenzel +6

The natural van der Waals heterostructure 4H-TaS composed of alternating 1T- and 1H-TaS layers serves as a platform for investigating the electronic correlations and la…

cond-mat.mes-hall2024★ 5 cited

Imaging heat transport in suspended diamond nanostructures with integrated spin defect thermometers

Valentin Goblot, Kexin Wu, Enrico Di Lucente +8

Among all materials, mono-crystalline diamond has one of the highest measured thermal conductivities, with values above 2000 W/m/K at room temperature. This stems from momentum-con…

cond-mat.mes-hall2024★ 7 cited

Single-shot readout of the nuclear spin of an on-surface atom

Evert W. Stolte, Jinwon Lee, Hester G. Vennema +6

Nuclear spins owe their long-lived magnetic states to their excellent isolation from the environment. At the same time, a finite degree of interaction with their surroundings is ne…

cond-mat.mes-hall2024★ 1 cited

Rydberg excitons in cuprous oxide: A two-particle system with classical chaos

Jan Ertl, Sebastian Rentschler, Jörg Main

When an electron in a semiconductor gets excited to the conduction band the missing electron can be viewed as a positively charged particle, the hole. Due to the Coulomb interactio…

cond-mat.mes-hall2024★ 3 cited

Pulsed magnetic field gradient on a tip for nanoscale imaging of spins

Leora Schein-Lubomirsky, Yarden Mazor, Rainer Stöhr +2

Nanoscale magnetic resonance imaging (nanoMRI) aims at obtaining structure at the single molecule level. Most of the techniques for effecting a nanoMRI gradient use small permanent…

cond-mat.mes-hall2024★ 1 cited

Lateral Mn5Ge3 spin-valve in contact with a high-mobility Ge two-dimensional hole gas

David Weißhaupt, Christoph Sürgers, Dominik Bloos +8

Ge two-dimensional hole gases in strained modulation-doped quantum-wells represent a promising material platform for future spintronic applications due to their excellent spin tran…

cond-mat.mes-hall2024★ 10 cited

Visualizing the internal structure of the charge-density-wave state in CeSbTe

Xinglu Que, Qingyu He, Lihui Zhou +4

The collective reorganization of electrons into a charge density wave has long served as a textbook example of an ordered phase in condensed matter physics. Two-dimensional square…

cond-mat.mes-hall2024★ 11 cited

Electronic Structure and Kohn-Luttinger Superconductivity of Heavily-Doped Single-Layer Graphene

Saul Herrera, Guillermo Parra-Martinez, Philipp Rosenzweig +8

The existence of superconductivity (SC) in graphene appears to be established in both twisted and non-twisted multilayers. However, whether their building block, single-layer graph…

cond-mat.mes-hall2024★ 3 cited

Studying Critical Parameters of Superconductor via Diamond Quantum Sensors

Kin On Ho, Wai Kuen Leung, Yiu Yung Pang +11

Critical parameters are the key to superconductivity research, and reliable instrumentations can facilitate the study. Traditionally, one has to use several different measurement t…

cond-mat.mes-hall2024★ 14 cited

Strong Charge-Photon Coupling in Planar Germanium Enabled by Granular Aluminium Superinductors

Marián Janík, Kevin Roux, Carla Borja Espinosa +11

High kinetic inductance superconductors are gaining increasing interest for the realisation of qubits, amplifiers and detectors. Moreover, thanks to their high impedance, quantum b…

cond-mat.mes-hall2024★ 5 cited

Resonance energies and linewidths of Rydberg excitons in CuO quantum wells

Niklas Scheuler, Patric Rommel, Jörg Main +1

Rydberg excitons are the solid-state analog of Rydberg atoms and can, e.g., for cuprous oxide, easily reach a large size in the region of m for principal quantum numbers up to $…

cond-mat.mes-hall2024★ 3 cited

Band theory for heterostructures with interface superlattices

Bernhard Putzer, Lucas V. Pupim, Mathias S. Scheurer

Motivated by recent experiments demonstrating the creation of atomically sharp interfaces between hexagonal sapphire and cubic SrTiO with finite twist, we here develop and stud…

cond-mat.mes-hall2024★ 3 cited

Classical dynamics and semiclassical analysis of excitons in cuprous oxide

Jan Ertl, Michael Marquardt, Moritz Schumacher +3

Excitons, as bound states of electrons and holes, embody the solid state analogue of the hydrogen atom, whose quantum spectrum is explained within a classical framework by the Bohr…

cond-mat.mes-hall2023★ 6 cited

Room temperature relaxometry of single nitrogen-vacancy centers in proximity to -RuCl nanoflakes

Jitender Kumar, Dan Yudilevich, Ariel Smooha +6

Investigating spin and charge noise in strongly correlated electron systems is a valuable way to analyze their physical properties and unlock new phases of matter. In this context,…

cond-mat.mes-hall2023★ 27 cited

Roadmap on Nanoscale Magnetic Resonance Imaging

Raffi Budakian, Amit Finkler, Alexander Eichler +22

The field of nanoscale magnetic resonance imaging (NanoMRI) was started 30 years ago. It was motivated by the desire to image single molecules and molecular assemblies, such as pro…