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Related papers: UTe$_2$: a narrow band superconductor

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Based on experimental crystallographic data, electronic structure of UGe$_2$ have been calculated and compared with our results of X-ray photoelectron spectroscopy (XPS) measurements. We employed two different advanced full potential (FP)…

Materials Science · Physics 2025-04-01 M. Samsel-Czekała , M. Werwiński , A. Szajek , G. Chełkowska , R. Troć

We investigate the normal state of the superconducting compound PuCoGa$_5$ using the combination of density functional theory (DFT) and dynamical mean field theory (DMFT), with the continuous time quantum Monte Carlo (CTQMC) and the…

Strongly Correlated Electrons · Physics 2018-08-01 W. H. Brito , S. Choi , Y. X. Yao , G. Kotliar

We study the electronic structure of an exotic superconductor, PdTe employing depth-resolved high resolution photoemission spectroscopy and density functional theory. The valence band spectra exhibit large density of states at the Fermi…

Spin-triplet topological superconductors should exhibit many unprecedented electronic properties including fractionalized electronic states relevant to quantum information processing. Although UTe$_2$ may embody such bulk topological…

HfO$_2$-based ferroelectrics have emerged as promising materials for advanced nanoelectronics, with their robust polarization and silicon compatibility making them ideal for high-density, non-volatile memory applications. Oxygen vacancies,…

Materials Science · Physics 2026-01-06 Yudi Yang , Wooil Yang , Young-Woo Son , Shi Liu

The paper deals with the U based compound UPt$_2$Si$_2$ (UPS). The material was first treated as a localized 5f-electron system. Later, an opposite opinion of a predominantly itinerant nature of the system was put forward. The most recent…

Strongly Correlated Electrons · Physics 2024-03-29 L. M. Sandratskii , V. M. Silkin , L. Havela

We have investigated the electronic structure and the Fermi surface of SnO using density functional theory (DFT) calculations within recently proposed exchange-correlation potential (PBE+mBJ) at ambient conditions and high pressures up to…

Materials Science · Physics 2015-05-28 J. A. McLeod , A. V. Lukoyanov , E. Z. Kurmaev , L. D. Finkelstein , A. Moewes

In Uranium-based heavy fermion system, the 5f electrons display an intermediate character between partial localization and partial itinerancy, which makes the Kondo problem more complicated. Here we use scanning tunneling…

Strongly Correlated Electrons · Physics 2021-12-15 W. Feng , D. H. Xie , X. B. Luo , S. Y. Tan , Y. Liu , Q. Liu , Q. Q. Hao , X. G. Zhu , Q. Zhang , Y. Zhang , Q. Y. Chen , X. C. Lai

Band alignment between two materials is of fundamental importance for multitude of applications. However, density functional theory (DFT) either underestimates the bandgap - as is the case with local density approximation (LDA) or…

We investigate the antiferromagnetic heavy fermion superconductor UPd$_2$Al$_3$, employing angle-resolved photoemission spectroscopy to unravel the complex electronic structure of its U 5f electrons. We observe unexpected characteristics…

Under temperature or pressure tuning, tetragonal EuPd$_2$Si$_2$ is known to undergo a valence transition from nearly divalent to nearly trivalent Eu accompanied by a volume reduction. Albeit intensive work, its microscopic origin is still…

Strongly Correlated Electrons · Physics 2023-02-24 Young-Joon Song , Susanne Schulz , Kristin Kliemt , Cornelius Krellner , Roser Valentí

Uranium tellurides span magnetic and superconducting ground states, yet systematic electronic-structure information across the U-Te series remains scarce. In this study, we perform photoemission measurements on freshly prepared UxTey thin…

Materials Science · Physics 2026-01-21 E. A. Tereshina-Chitrova , S. G. Alex , O. Koloskova , L. Havela , L. Horak , O. Romanyuk , F. Huber , T. Gouder , M. Divis

We introduce ultrafast low-energy electron diffraction (ULEED) in backscattering for the study of structural dynamics at surfaces. Using a tip-based source of ultrashort electron pulses, we investigate the optically-driven transition…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 S. Vogelgesang , G. Storeck , S. Schramm , K. Rossnagel , S. Schäfer , C. Ropers

The recent discovery of superconductivity in hole-doped NdNiO$_2$ thin films has captivated the condensed matter physics community. Such compounds with a formal Ni$^+$ valence have been theoretically proposed as possible analogues of the…

Strongly Correlated Electrons · Physics 2020-12-29 Francesco Petocchi , Viktor Christiansson , Fredrik Nilsson , Ferdi Aryasetiawan , Philipp Werner

We have investigated the electron correlation effect on the electronic structures and transport properties of the iron-based superconductors using the density functional theory (DFT) and dynamical mean field theory (DMFT). By considering…

Strongly Correlated Electrons · Physics 2011-08-19 Hyo Seok Ji , Geunsik Lee , Ji Hoon Shim

The unconventional superconductivity in the newly discovered iron-based superconductors is intimately related to its multi-band/multi-orbital nature. Here we report the comprehensive orbital characters of the low-energy three-dimensional…

The ab initio computational method known as Hubbard-corrected density functional theory (DFT+$U$) captures well ground electronic structures of a set of solids that are poorly described by standard DFT alone. Since lattice dynamical…

Materials Science · Physics 2025-06-17 Wooil Yang , Sabyasachi Tiwari , Feliciano Giustino , Young-Woo Son

We performed density functional theory (DFT)+$U$ and dynamical mean field theory (DMFT) calculations with continuous time quantum Monte Carlo impurity solver to investigate the electronic properties of V$_2$O$_5$ and Li$_x$V$_2$O$_5$ ($x$ =…

Strongly Correlated Electrons · Physics 2023-11-28 Huu T. Do , Alex Taekyung Lee , Hyowon Park , Anh T. Ngo

With an extreme neutron-to-proton ratio of N/Z=3, 8He provides an ideal laboratory for the study of a variety of exotic phenomena, such as the emergence of a soft dipole mode that is dominated by transitions into the continuum. In this…

Nuclear Theory · Physics 2022-04-27 J. Piekarewicz

Transition-metal compounds (TMCs) with open-shell d-electrons are characterized by a complex interplay of lattice, charge, orbital, and spin degrees of freedom, giving rise to a diverse range of fascinating applications. Often exhibiting…

Materials Science · Physics 2025-03-19 Yubo Zhang , Akilan Ramasamy , Kanun Pokharel , James W. Furness , Jinliang Ning , Ruiqi Zhang , Jianwei Sun