Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Lyons, John L."'
Autor:
Wickramaratne, Darshana, Siford, Mackenzie, Mollik, Md Shafiqul Islam, Lyons, John L., Zvanut, M. E.
We use photo-electron paramagnetic resonance (EPR) measurements and first-principles calculations to identify and explain the properties of carbon in AlN. We present clear evidence for carbon substitution on the nitrogen site (C$_{\rm N}$). We also c
Externí odkaz:
http://arxiv.org/abs/2405.13299
We find the recently developed strongly constrained and appropriately normed (SCAN) functional, now widely used in calculations of many materials, is not able to reliably describe the properties of deep defects and small polarons in a set of wide-ban
Externí odkaz:
http://arxiv.org/abs/2311.03634
Publikováno v:
ACS Nano 18, 30, 19561-19567 (2024)
While nanoscale semiconductor crystallites provide versatile fluorescent materials for light-emitting devices, such nanocrystals suffer from the "dark exciton"$\unicode{x2014}$an optically inactive electronic state into which the nanocrystal relaxes
Externí odkaz:
http://arxiv.org/abs/2310.19678
Publikováno v:
Phys. Rev. Materials 8, 014601 (2024)
Ga$_2$O$_3$ is a wide-bandgap material of interest for a wide variety of devices, many of these requiring heterostructures, for instance to achieve carrier confinement. A common method to create such heterostructures is to alloy with In$_2$O$_3$ or A
Externí odkaz:
http://arxiv.org/abs/2310.10557
Chalcogen vacancies in the semiconducting monolayer transition-metal dichalcogenides (TMDs) have frequently been invoked to explain a wide range of phenomena, including both unintentional p-type and n-type conductivity, as well as sub-band gap defect
Externí odkaz:
http://arxiv.org/abs/2309.14544
Autor:
Swift, Michael W., Lyons, John L.
In this comment on "Origin of correlated isolated flat bands in copper-substituted lead phosphate apatite" (arXiv:2307.16892 [cond-mat.supr-con]), we discuss the flat half-occupied two-band manifold that appears in $\mathrm{Pb}_9\mathrm{Cu}(\mathrm{P
Externí odkaz:
http://arxiv.org/abs/2308.08458
Autor:
Swift, Michael W., Lyons, John L.
Publikováno v:
Chem. Mater. 35, 21, 9370 (2023)
The lone-pair s states of germanium, tin, and lead underlie many of the unconventional properties of the inorganic metal halide perovskites. Dynamic stereochemical expression of the lone pairs is well established for perovskites based on all three me
Externí odkaz:
http://arxiv.org/abs/2308.02481
Publikováno v:
Journal of Applied Physics; 11/21/2024, Vol. 136 Issue 19, p1-6, 6p
Autor:
Mu, Sai, Wang, Mengen, Varley, Joel B., Lyons, John L., Wickramaratne, Darshana, Van de Walle, Chris G.
Publikováno v:
Physical Review B 105, 155201(2022)
We use hybrid density functional calculations to assess n-type doping in monoclinic (Al$_x$Ga$_{1-x}$)$_2$O$_3$ alloys. We focus on Si, the most promising donor dopant, and study the structural properties, formation energies and charge-state transiti
Externí odkaz:
http://arxiv.org/abs/2111.07194