Zobrazeno 1 - 10
of 1 604
pro vyhledávání: '"Senechal, P."'
Autor:
Bacq-Labreuil, Benjamin, Lacasse, Benjamin, Tremblay, André-Marie S., Sénéchal, David, Haule, Kristjan
Significant progress towards a theory of high-temperature superconductivity in cuprates has been achieved via the study of effective one- and three-band Hubbard models. Nevertheless, material-specific predictions, while essential for constructing a c
Externí odkaz:
http://arxiv.org/abs/2410.10019
Recent scanning-tunneling microscopy on hole-doped Bi$_2$Sr$_2$CaCu$_2$O$_8$, one of the materials of the cuprate family, finds a long-range ordered spontaneous splitting of the energy levels of oxygen orbitals inside the CuO$_2$ unit cells [S. Wang
Externí odkaz:
http://arxiv.org/abs/2409.15619
Publikováno v:
Published in IUCrJ, v.11 (4), 2024
This paper was motivated by the articles "Same or different - that is the question" in CrystEngComm (July 2020) and "Change to the definition of a crystal" in the IUCr newsletter (June 2021). Experimental approaches to crystal comparisons require rig
Externí odkaz:
http://arxiv.org/abs/2406.12894
Autor:
Bélanger, Mathieu, Sénéchal, David
We study a one-band Hubbard model of twisted bilayer cuprates with a twist angle of $53.13^\circ$. By introducing an inter-layer bias, we simulate heterobilayers of different dopings. Using the variational cluster approximation (VCA) we probe the eff
Externí odkaz:
http://arxiv.org/abs/2311.02207
Autor:
Kundu, Sarbajaya, Sénéchal, David
Publikováno v:
SciPost Phys. Core 7, 033 (2024)
We examine the phase diagram of the extended Hubbard model on a square lattice, for both attractive and repulsive nearest-neighbor interactions, using CDMFT+HFD, a combination of Cluster Dynamical Mean Field theory (CDMFT) and a Hartree-Fock mean-fie
Externí odkaz:
http://arxiv.org/abs/2310.16075
Publikováno v:
CCS 2023
Many researchers and organizations, such as WHO and UNICEF, have raised awareness of the dangers of advertisements targeted at children. While most existing laws only regulate ads on television that may reach children, lawmakers have been working on
Externí odkaz:
http://arxiv.org/abs/2310.04104
Publikováno v:
Phys. Rev. B 108, 214306 (2023)
In magnetic memories, the state of a ferromagnet is encoded in the orientation of its magnetization. The energy of the system is minimized when the magnetization is parallel or antiparallel to a preferred (easy) axis. These two stable directions defi
Externí odkaz:
http://arxiv.org/abs/2308.11099
Publikováno v:
Phys. Rev. B 108, 245122 (2023)
Two of the primary sources of error in the Cluster dynamical mean-field theory (CDMFT) technique arise from the use of finite size clusters and finite size baths, which makes the development of impurity solvers that can treat larger systems an essent
Externí odkaz:
http://arxiv.org/abs/2307.15738
Delone sets are discrete point sets $X$ in $\mathbb{R}^d$ characterized by parameters $(r,R)$, where (usually) $2r$ is the smallest inter-point distance of $X$, and $R$ is the radius of a largest ``empty ball" that can be inserted into the interstice
Externí odkaz:
http://arxiv.org/abs/2306.11127
Autor:
Bélanger, Mathieu, Sénéchal, David
We study a one-band Hubbard model for a twisted cuprate bilayer with a twist angle of 43.6$^\circ$ and a moire cell containing 58 sites. We use the variational cluster approximation (VCA), which treats short-range correlations exactly and leads, in s
Externí odkaz:
http://arxiv.org/abs/2306.05485