Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Olés, A. M."'
Autor:
Basak, Surajit, Kobiałka, Aksel, Sternik, Małgorzata, Łażewski, Jan, Jochym, Paweł T., Oleś, Andrzej M., Piekarz, Przemysław, Ptok, Andrzej
Publikováno v:
Computational Materials Science 244, 113149 (2024)
We present the pressure dependence of the electronic and dynamical properties of six different CoGe phases: orthorhombic Cmmm, hexagonal P6/mmm and P$\bar{6}$2m, monoclinic C2/m, cubic P2$_{1}$3, and orthorhombic Pnma. Using first-principles DFT calc
Externí odkaz:
http://arxiv.org/abs/2403.07580
Autor:
Ptok, Andrzej, Basak, Surajit, Kobiałka, Aksel, Sternik, Małgorzata, Łażewski, Jan, Jochym, Paweł T., Oleś, Andrzej M., Piekarz, Przemysław
Publikováno v:
Phys. Rev. Materials 8, L080601 (2024)
Electron-correlation-driven phonon soft modes have been recently reported in the antiferromagnetic kagome FeGe compound and associated with the observed charge density wave (CDW). In this paper, we present a systematic investigation of the CDW origin
Externí odkaz:
http://arxiv.org/abs/2403.00297
Publikováno v:
Physical Review A 108, 032616 (2023)
Quantum control plays an irreplaceable role in practical use of quantum computers. However, some challenges have to be overcome to find more suitable and diverse control parameters. We propose a promising and generalizable average-fidelity-based mach
Externí odkaz:
http://arxiv.org/abs/2309.16470
Autor:
Ptok, Andrzej, Meier, William R., Kobiałka, Aksel, Basak, Surajit, Sternik, Małgorzata, Łażewski, Jan, Jochym, Paweł T., McGuire, Michael A., Sales, Brian C., Miao, Hu, Piekarz, Przemysław, Oleś, Andrzej M.
Publikováno v:
Phys. Rev. Research 5, 043231 (2023)
RhPb was initially recognized as one of a CoSn-like compounds with $P6/mmm$ symmetry, containing an ideal kagome lattice of $d$-block atoms. However, theoretical calculations predict the realization of the phonon soft mode which leads to the kagome l
Externí odkaz:
http://arxiv.org/abs/2309.02419
Autor:
Zhang, Wen-Yi, Wang, Ya-Nan, Liu, Dongchang, Ren, Jie, Li, Jia, Wu, Ning, Oleś, Andrzej M., You, Wen-Long
Publikováno v:
Physical Review B 108, 104411 (2023)
To establish a solid-state-based framework for the coexistence of quantum many-body scars and quantum criticality, we investigate the spin-1 Kitaev chain with uniaxial single-ion anisotropy (SIA). In the subspace with uniform $\mathbb{Z}_2$ gauge fie
Externí odkaz:
http://arxiv.org/abs/2306.00690
Publikováno v:
Physical Review B 107, 104403 (2023)
The phenomenon of negative thermal expansion (NTE) deals with the increase of the lattice parameters and the volume of the unit cell when the material is thermally cooled. The NTE is typically associated with thermal phonons and anomalous spin-lattic
Externí odkaz:
http://arxiv.org/abs/2303.04951
Publikováno v:
Condens. Matter 8, 19 (2023)
Recently, superconductivity was discovered in the infinite layer of hole-doped nickelates NdNiO$_{2}$. Contrary to this, superconductivity in LaNiO$_{2}$ is still under debate. This indicates the crucial role played by the $f$ electrons on the electr
Externí odkaz:
http://arxiv.org/abs/2302.03381
Autor:
Sikora, Olga, Sternik, Małgorzata, Jany, Benedykt R., Krok, Franciszek, Piekarz, Przemysław, Oleś, Andrzej M.
In recent years, nanostructures with hexagonal polytypes of gold have been synthesised, opening new possibilities in nanoscience and technology. As bulk gold crystallizes in the \textit{fcc} phase, surface effects can play an important role in stabil
Externí odkaz:
http://arxiv.org/abs/2212.12020
Autor:
Kłosiński, Adam, Brzezicki, Wojciech, Lau, Alexander, Agrapidis, Cliò E., Oleś, Andrzej M., van Wezel, Jasper, Wohlfeld, Krzysztof
Publikováno v:
Phys. Rev. B. 107, 125123 (2023)
We investigate the topological properties of the helical atomic chains occurring in elemental selenium and tellurium. We postulate a realistic model that includes spin-orbit interaction and show this to be topologically non-trivial, with a topologica
Externí odkaz:
http://arxiv.org/abs/2212.04299
Publikováno v:
Physical Review B {\bf 107}, 064409/1-6 (2023)
Using the reflection positivity method we provide the rigorous proof of the existence of long range magnetic order for the XY model on the honeycomb lattice for large spins $S\ge 2$. This stays in contrast with the result obtained using the {\it same
Externí odkaz:
http://arxiv.org/abs/2211.13178