Zobrazeno 1 - 10
of 310
pro vyhledávání: '"Lǒuk, P. A."'
Recent experiments in twisted bilayer transition-metal dichalcogenides have revealed a variety of strongly correlated phenomena. To theoretically explore their origin, we combine here ab initio calculations with correlated model approaches to describ
Externí odkaz:
http://arxiv.org/abs/2404.07165
We investigate strong coupling topological superconductivity in twisted moir\'e bilayer WSe$_2$. Our approach is based on an effective $t$-$J$ model with displacement-field-dependent complex hoppings, which is treated with the variational Gutzwiller
Externí odkaz:
http://arxiv.org/abs/2403.05903
Publikováno v:
Physical Review Research 6, 013112 (2024)
We study the Hall constant in a homogeneous two-dimensional fluid of correlated electrons immersed in a perpendicular magnetic field, with special focus on the regime of low carrier density. The model consists of a one-band tight-binding model and a
Externí odkaz:
http://arxiv.org/abs/2310.10466
Publikováno v:
Phys. Rev. Lett. 131, 196303 (2023)
We present a theory for band-tuned metal-insulator transitions based on the Kubo formalism. Such a transition exhibits scaling of the resistivity curves, in the regime where $T\tau >1$ or $\mu \tau>1$, where $\tau$ is the scattering time and $\mu$ th
Externí odkaz:
http://arxiv.org/abs/2307.09292
Autor:
Sun, Lihuan, Rademaker, Louk, Mauro, Diego, Scarfato, Alessandro, Pásztor, Árpád, Gutiérrez-Lezama, Ignacio, Wang, Zhe, Martinez-Castro, Jose, Morpurgo, Alberto F., Renner, Christoph
Inducing and controlling spin-orbit coupling (SOC) in graphene is key to create topological states of matter, and for the realization of spintronic devices. Placing graphene onto a transition metal dichalcogenide is currently the most successful stra
Externí odkaz:
http://arxiv.org/abs/2212.04926
Publikováno v:
Phys. Rev. Research 5, L022049 (2023)
At $n=3/4$ filling of the moir\'e flat band, transition metal dichalcogenide moir\'e bilayers will develop kagome charge order. We derive an effective spin model for the resulting localized spins and find that its further neighbor spin interactions c
Externí odkaz:
http://arxiv.org/abs/2211.15696
Autor:
Gatti, Gianmarco, Issing, Julia, Rademaker, Louk, Margot, Florian, de Jong, Tobias A., van der Molen, Sense Jan, Teyssier, Jérémie, Kim, Timur K., Watson, Matthew D., Cacho, Cephise, Dudin, Pavel, Avila, José, Edwards, Kumara Cordero, Paruch, Patrycja, Ubrig, Nicolas, Gutiérrez-Lezama, Ignacio, Morpurgo, Alberto, Tamai, Anna, Baumberger, Felix
The recent observation of correlated phases in transition metal dichalcogenide moir\'e systems at integer and fractional filling promises new insight into metal-insulator transitions and the unusual states of matter that can emerge near such transiti
Externí odkaz:
http://arxiv.org/abs/2211.01192
Publikováno v:
Phys. Rev. Research 5, 043190 (2023)
The moir\'e pattern induced by lattice mismatch in transition-metal dichalcogenide heterobilayers causes the formation of flat bands, where interactions dominate the kinetic energy. At fractional fillings of the flat valence band, the long-range elec
Externí odkaz:
http://arxiv.org/abs/2210.07926
Publikováno v:
Crystals 2022, 12(7), 932
In this paper we critically discuss several examples of two-dimensional electronic systems displaying interaction-driven metal-insulator transitions of the Mott (or Wigner--Mott) type, including dilute two-dimension electron gases (2DEG) in semicondu
Externí odkaz:
http://arxiv.org/abs/2206.02055
Autor:
Rademaker, Louk
The valence flat bands in transition metal dichalcogenide (TMD) heterobilayers are shown to exhibit strong intralayer spin-orbit coupling. This is reflected in a simple tight-binding model with spin-dependent complex hoppings based on the continuum m
Externí odkaz:
http://arxiv.org/abs/2111.06208