Zobrazeno 1 - 10
of 5 047
pro vyhledávání: '"Wehling A."'
Autor:
Ghosal, Chitran, Ryee, Siheon, Mamiyev, Zamin, Witt, Niklas, Wehling, Tim O., Tegenkamp, Christoph
Graphene, renowned for its exceptional electronic and optical properties as a robust 2D material, traditionally lacks electronic correlation effects. Proximity coupling offers a promising method to endow quantum materials with novel properties. In th
Externí odkaz:
http://arxiv.org/abs/2412.01329
Autor:
Kapetanović, Edin, Gigante, Guglielmo Nicola, Schüler, Malte, Wehling, Tim O., van Loon, Erik
Electronic correlations arise from the competition between the electrons' kinetic and Coulomb interaction energy and give rise to a rich phase diagram and many emergent quasiparticles. The binding of doubly-occupied and empty sites into a doublon-hol
Externí odkaz:
http://arxiv.org/abs/2409.05640
We derive a minimal low-energy model for Bernal bilayer graphene and related rhombohedral graphene multilayers at low electronic densities by constructing Wannier orbitals defined in real-space supercells of the original primitive cell. Starting from
Externí odkaz:
http://arxiv.org/abs/2407.02576
Autor:
Federl, Maria-Elisabeth, Witt, Niklas, Yang, Biao, Weigl, Leonard, Hofmann, Niklas, Gradl, Johannes, Piquero-Zulaica, Ignacio, Barth, Johannes V., Mishra, Neeraj, Coletti, Camilla, Wehling, Tim O., Gierz, Isabella
Intercalation of epitaxial graphene on SiC(0001) with Sn results in a well-ordered Sn $(1\times1)$ structure on the SiC surface with quasi-freestanding graphene on top. While the electronic properties of the individual layers have been studied in the
Externí odkaz:
http://arxiv.org/abs/2405.01075
Autor:
Hofmann, Niklas, Steinhoff, Alexander, Krause, Razvan, Mishra, Neeraj, Orlandini, Giorgio, Forti, Stiven, Coletti, Camilla, Wehling, Tim O., Gierz, Isabella
Understanding and controlling the electronic properties of two-dimensional materials is crucial for their potential applications in nano- and optoelectronics. Monolayer transition metal dichalcogenides such as WS$_2$ have garnered significant interes
Externí odkaz:
http://arxiv.org/abs/2405.01371
Autor:
Klebl, Lennart, Schobert, Arne, Sangiovanni, Giorgio, Balatsky, Alexander V., Wehling, Tim O.
Recent experiments demonstrate precise control over coherently excited phonon modes using high-intensity terahertz lasers, opening new pathways towards dynamical, ultrafast design of magnetism in functional materials. In this work, we put forward a c
Externí odkaz:
http://arxiv.org/abs/2403.13070
Autor:
Chang, Yueqing, van Loon, Erik G. C. P., Eskridge, Brandon, Busemeyer, Brian, Morales, Miguel A., Dreyer, Cyrus E., Millis, Andrew J., Zhang, Shiwei, Wehling, Tim O., Wagner, Lucas K., Rösner, Malte
Publikováno v:
npj Computational Materials volume 10, Article number: 129 (2024)
Model Hamiltonians are regularly derived from first-principles data to describe correlated matter. However, the standard methods for this contain a number of largely unexplored approximations. For a strongly correlated impurity model system, here we
Externí odkaz:
http://arxiv.org/abs/2311.05987
Quenched pair breaking by interlayer correlations as a key to superconductivity in La$_3$Ni$_2$O$_7$
Publikováno v:
Phys. Rev. Lett. 133, 096002 (2024)
The recent discovery of superconductivity in La$_3$Ni$_2$O$_7$ with $T_\mathrm{c} \simeq 80~\mathrm{K}$ under high pressure opens up a new route to high-$T_\mathrm{c}$ superconductivity. This material realizes a bilayer square lattice model featuring
Externí odkaz:
http://arxiv.org/abs/2310.17465
Autor:
Saigal, Nihit, Klebl, Lennart, Lambers, Hendrik, Bahmanyar, Sina, Antić, Veljko, Kennes, Dante M., Wehling, Tim O., Wurstbauer, Ursula
We establish low-temperature resonant inelastic light scattering (RILS) spectroscopy as a tool to probe the formation of a series of moir\'e-bands in twisted WSe_{2} bilayers by accessing collective intermoir\'e-band excitations (IMBE). We observe re
Externí odkaz:
http://arxiv.org/abs/2310.14417
Autor:
Witt, Niklas, Nomura, Yusuke, Brener, Sergey, Arita, Ryotaro, Lichtenstein, Alexander I., Wehling, Tim O.
Superconductivity emerges from the spatial coherence of a macroscopic condensate of Cooper pairs. Increasingly strong binding and localization of electrons into these pairs compromises the condensate's phase stiffness, thereby limiting critical tempe
Externí odkaz:
http://arxiv.org/abs/2310.09063