Topology of the polarization field in PbTiO3 nanoparticles of different shapes by atomic-level simulations
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DOI: 10.1063/1.5143243
Abstract: An atomistic model approach parameterized from first-principles calculations is used to investigate size and shape effects on the polarization field in isolated stress-free PbTiO3 nanoparticles. Th... read more here.
Keywords: topology; polarization field; pbtio3 nanoparticles; topology polarization ... See more keywords
High p-conductivity in AlGaN enabled by polarization field engineering
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DOI: 10.1063/5.0143427
Abstract: High p-conductivity (0.7 Ω−1 cm−1) was achieved in high-Al content AlGaN via Mg doping and compositional grading. A clear transition between the valence band and impurity band conduction mechanisms was observed. The transition temperature depended strongly… read more here.
Keywords: high conductivity; conductivity algan; polarization field; conductivity ... See more keywords
Evaluation of polarization field in InGaN/GaN multiple quantum well structures by using electroluminescence spectra shift
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DOI: 10.1088/1674-1056/ab6967
Abstract: In order to investigate the inherent polarization intensity in InGaN/GaN multiple quantum well (MQW) structures, the electroluminescence (EL) spectra of three samples with different GaN barrier thicknesses of 21.3 nm, 11.4 nm, and 6.5 nm… read more here.
Keywords: shift; gan multiple; polarization field; ingan gan ... See more keywords