Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Wysokiński, Marcin"'
Autor:
Jabłonowski, Krystian, Skolimowski, Jan, Brzezicki, Wojciech, Byczuk, Krzysztof, Wysokiński, Marcin M.
Publikováno v:
Phys. Rev. B 108, 195145 (2023)
Recently, a quantum anomalous Hall state at odd integer filling in moir\'e stacked MoTe$_2$/WSe$_2$ was convincingly interpreted as a topological Mott insulator state appearing due to strong interactions in {\it band} basis [P. Mai, J. Zhao, B. E. Fe
Externí odkaz:
http://arxiv.org/abs/2308.02292
Publikováno v:
Phys. Rev. B 108, 035121 (2023)
In this work, we propose an exactly solvable two-dimensional lattice model of strongly correlated electrons that realizes a quantum anomalous Hall insulator with Chern number $\mathcal{C}=1$. First, we show that the interplay of ionic potential, Rash
Externí odkaz:
http://arxiv.org/abs/2303.04454
Publikováno v:
Phys. Rev. B 109, 155304 (2024)
At the core of the success of semiconducting spin qubits is the ability to manipulate them electrically, enabled by the spin-orbit interactions. However, most implementations require external magnetic fields to define the spin qubit, which in turn ac
Externí odkaz:
http://arxiv.org/abs/2301.10163
We present density functional theory calculations for low-$T_c$ metallic ferromagnet La$_5$Co$_2$Ge$_3$ at ambient and applied pressures. Our investigations reveal that the system is a quasi-one-dimensional ferromagnet with a peculiar coexistence of
Externí odkaz:
http://arxiv.org/abs/2104.04245
Publikováno v:
Phys. Rev. B 104, 041402 (2021)
Hole-spins localized in semiconductor structures, such as quantum dots or defects, serve to the realization of efficient gate-tunable solid-state quantum bits. Here we study two electrically driven spin $3/2$ holes coupled to the electromagnetic fiel
Externí odkaz:
http://arxiv.org/abs/2012.15804
Publikováno v:
Phys. Rev. B 100, 041116 (2019)
Fermi-Hubbard system with a periodically-modulated interaction has been recently shown to resonantly absorb energy at series of drive frequencies. In the present work, with the help of static perturbation theory we argue that driving couples to Hubba
Externí odkaz:
http://arxiv.org/abs/1904.05714
Publikováno v:
Phys. Rev. B 100, 121107 (2019)
Surfaces of multilayer semiconductors typically have regions of atomically flat terraces separated by atom-high steps. Here we investigate the properties of the low-energy states appearing at the surface atomic steps in \snte. We identify the importa
Externí odkaz:
http://arxiv.org/abs/1812.02168
Autor:
Wysokiński, Marcin M.
Publikováno v:
Sci. Rep. 9, 19461 (2019)
We propose mechanism for pressure-induced transitions between ferromagnetic and antiferromagnetic phases that relies on a competition between characteristic energy scales ubiquitous among $d$-electron metallic magnetic compounds. Principles behind th
Externí odkaz:
http://arxiv.org/abs/1808.04109
Autor:
Wysokiński, Marcin M.
Publikováno v:
Phys. Rev. B 97, 041107 (2018)
Uranium dipnictide USb$_2$ reflects enigmatic properties posing a substantial challenge for a microscopic modeling. Among others, it develops a nonstandard antiferromagnetic order of a $\uparrow\downarrow\downarrow\uparrow$-type along [001] crystallo
Externí odkaz:
http://arxiv.org/abs/1712.02534
Publikováno v:
Phys. Rev. B 96, 201115(R) (2017)
We investigate the unitary dynamics following a sudden increase $\Delta U>0$ of repulsion in the paramagnetic sector of the half-filled Hubbard model on a Bethe lattice, by means of a variational approach that combines a Gutzwiller wavefunction with
Externí odkaz:
http://arxiv.org/abs/1711.01840