Zobrazeno 1 - 10
of 3 240
pro vyhledávání: '"Kotliar AN"'
Autor:
Kaplan, Daniel, Zhang, Adam, Blawat, Joanna, Jin, Rongying, Cava, Robert J., Oudovenko, Viktor, Kotliar, Gabriel, Sengupta, Anirvan M., Xie, Weiwei
The discovery of novel superconducting materials is a longstanding challenge in materials science, with a wealth of potential for applications in energy, transportation, and computing. Recent advances in artificial intelligence (AI) have enabled expe
Externí odkaz:
http://arxiv.org/abs/2412.13012
Autor:
Georges, Antoine, Kotliar, Gabriel
Publikováno v:
Physics Today, 77(4), 46-53 (2024)
Atomic physics has a profound impact on the physical properties of correlated electron materials. This article describes a prime example of this phenomenon. We provide a non-technical introduction to the physics of Hund metals, a broad class of mater
Externí odkaz:
http://arxiv.org/abs/2411.15909
Autor:
Xu, Mingyu, Wang, Haozhe, Koirala, Krishna Prasad, Melnick, Corey, Peng, Cheng, González-Rivas, Mario U., Lu, Jiaqi, Wang, Le, Engelhard, Mark H., Du, Yingge, Ke, Xianglin, Green, Robert J., Hallas, Alannah M., Li, Jie, Kotliar, Gabriel, Xie, Weiwei
The interplay between crystal electric field splitting of d states and Hund's rule exchange energy in cobalt-based perovskites offers a promising avenue for inducing spin-state transitions. This study reports a new body-centered tetragonal (BCT) phas
Externí odkaz:
http://arxiv.org/abs/2410.18826
Autor:
Halloran, Thomas, Czajka, Peter, Salas, Gicela Saucedo, Frank, Corey, Kang, Chang-Jong, Rodriguez-Rivera, J. A., Lass, Jakob, Mazzone, Daniel G., Janoschek, Marc, Kotliar, Gabi, Butch, Nicholas P.
The detailed anisotropy of the low-temperature, low-energy magnetic excitations of the candidate spin-triplet superconductor UTe$_2$ is revealed using inelastic neutron scattering. The magnetic excitations emerge from the Brillouin zone boundary at t
Externí odkaz:
http://arxiv.org/abs/2408.14619
Autor:
Lee, Tsung-Han, Melnick, Corey, Adler, Ran, Sun, Xue, Yao, Yongxin, Lanatà, Nicola, Kotliar, Gabriel
Publikováno v:
Phys. Rev. B 110, 115126 (2024)
We present a charge self-consistent density functional theory combined with the ghost-rotationally-invariant slave-boson (DFT+gRISB) formalism for studying correlated materials. This method is applied to SrVO$_3$ and NiO, representing prototypical co
Externí odkaz:
http://arxiv.org/abs/2406.04636
We study dynamical scaling associated with a Kondo-breakdown quantum critical point (KB-QCP) of the periodic Anderson model, treated by two-site cellular dynamical mean-field theory (2CDMFT). In the quantum critical region, the staggered spin exhibit
Externí odkaz:
http://arxiv.org/abs/2404.14079
Publikováno v:
Phys. Rev. B 110, 155101 (2024)
The Hund-metal route to strong correlations continues to attract large interest in the condensed-matter community. The question arose to what extent it applies to the infinite-layer nickelates and, as a related question, to two-orbital systems in gen
Externí odkaz:
http://arxiv.org/abs/2312.11457
Autor:
Chang, Yueqing, Yi, Jinjing, Wu, Ang-Kun, Kugler, Fabian B., Andrei, Eva Y., Vanderbilt, David, Kotliar, Gabriel, Pixley, J. H.
Publikováno v:
Phys. Rev. Lett. 133, 126503 (2024)
In single sheets of graphene, vacancy-induced states have been shown to host an effective spin-1/2 hole that can be Kondo-screened at low temperatures. Here, we show how these vacancy-induced impurity states survive in twisted bilayer graphene (TBG),
Externí odkaz:
http://arxiv.org/abs/2312.09286
We study paramagnetic quantum criticality in the periodic Anderson model (PAM) using cellular dynamical mean-field theory, with the numerical renormalization group (NRG) as an impurity solver. The PAM describes an itinerant $c$ band hybridizing with
Externí odkaz:
http://arxiv.org/abs/2310.12672
Autor:
Kang, Byungkyun, Semon, Patrick, Melnick, Corey, Han, Mancheon, Mo, Seongjun, Lee, Hoonkyung, Kotliar, Gabriel, Choi, Sangkook
ComDMFT is a parallel computational package designed to study the electronic structure of correlated quantum materials from first principles. Our approach is based on the combination of first-principles methods and dynamical mean field theories. In v
Externí odkaz:
http://arxiv.org/abs/2310.04613