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pro vyhledávání: '"Denchfield, Adam"'
Rare-earth trihydrides ($R$H$_3$) exhibit intriguing coupled electronic and structural properties as a function of doping, hydrogen vacancies, and thermodynamic conditions. Theoretical studies of these materials typically rely on density functional t
Externí odkaz:
http://arxiv.org/abs/2410.03142
While hydrogen-rich materials have been demonstrated to exhibit high T$_c$ superconductivity at high pressures, there is an ongoing search for ternary and quaternary hydrides that achieve such high critical temperatures at much lower pressures. First
Externí odkaz:
http://arxiv.org/abs/2403.01688
We explore electronic and structural properties of Fm$\overline{3}$m Lu-H-N structures with specific N,H ordering as plausible candidates for near-ambient superconductivity possibly originating from their remarkably narrow hydrogen-based bands at the
Externí odkaz:
http://arxiv.org/abs/2403.01350
First-principles density functional theory (DFT) calculations of Lu-H-N compounds reveal low-energy configurations of Fm$\overline{3}$m Lu$_{8}$H$_{23-x}$N structures that exhibit novel electronic properties such as flat bands, sharply peaked densiti
Externí odkaz:
http://arxiv.org/abs/2305.18196
Autor:
Yusof, Zikri, Denchfield, Adam, Warren, Mark, Cardenas, Javier, Samuelson, Noah, Spentzouris, Linda, Zasadzinski, John
The quantum efficiencies (QE) of photocathodes consisting of bulk Nb substrates coated with thin films of Cs2Te are reported. Using the standard recipe for Cs2Te deposition developed for Mo substrates (220 {\AA} Te thickness), a QE ~11% - 13% at ligh
Externí odkaz:
http://arxiv.org/abs/1709.04120
Akademický článek
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Autor:
Warren, Mark, Denchfield, Adam, Gai, Wei, Samuelson, Noah, Shao, Jiahang, Spentzouris, Linda, Wisniewski, Eric, Yusof, Zikri, Zasadzinski, John
High power, low emittance electron beams require superconducting RF photoinjectors, typically made of pure Nb, and a superconducting photocathode is desired. However, superconductivity and high photocathode quantum efficiency (QE) are not compatible,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b27f088455330af057076a8d3b5bbf9b