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- Mitrovic, I. Z., et al.
(författare)
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Interface engineering routes for a future cmos ge-based technology
- 2014
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Ingår i: ECS Transactions. - : The Electrochemical Society. - 1938-5862 .- 1938-6737. ; , s. 73-88
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Konferensbidrag (refereegranskat)abstract
- We present an overview study of two germanium interface engineering routes, firstly a germanate formation via La2O3 and Y2O3, and secondly a barrier layer approach using Al2O3 and Tm2O3. The interfacial composition, uniformity, thickness, band gap, crystallinity, absorption features and valence band offset are determined using X-ray photoelectron spectroscopy, ultra violet variable angle spectroscopic ellipsometry, and high resolution transmission electron microscopy. The correlation of these results with electrical characterization data make a case for Ge interface engineering with rare-earth inclusion as a viable route to achieve high performance Ge CMOS.
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- Reno, Mary Hall, et al.
(författare)
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EAS optical Cherenkov signatures of tau neutrinos for space and suborbital detectors
- 2022
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Ingår i: 37th International Cosmic Ray Conference, ICRC 2021. - : Sissa Medialab Srl.
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Konferensbidrag (refereegranskat)abstract
- Multi-messenger observations of transient astrophysical sources have the potential to characterize the highest energy accelerators and the most extreme environments in the Universe. Detection of neutrinos, in particular tau neutrinos generated by neutrino oscillations in transit from their sources to Earth, is possible for neutrino energies above 10 PeV using optical Cherenkov detectors imaging upward-moving extensive air showers (EAS). These EAS are produced from Earth-interacting tau neutrinos leading to tau leptons that subsequently decay in the atmosphere. We compare neutrino detection sensitivities for generic short- and long-burst transient neutrino sources and sensitivities to the diffuse neutrino flux for the second generation Extreme Universe Space Observatory on a Super-Pressure Balloon (EUSO-SPB2) balloon-borne mission and the proposed space-based Probe of Extreme Multi-Messenger Astrophysics (POEMMA) mission.
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