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Full-Text Articles in Physical Sciences and Mathematics
Optical Second Harmonic Generation In The Batio3 Phase On Magnetically Aligned Multiferroic Nanofibers, Katia Gasperi
Optical Second Harmonic Generation In The Batio3 Phase On Magnetically Aligned Multiferroic Nanofibers, Katia Gasperi
Theses and Dissertations
Multiferroic materials enable the exploration of electrical control of magnetic properties and vice versa. Their increasing interest is especially due to their potential applications in the industry of information storage. Thanks to recent progress in nanotechnology, they have also been found to have many other applications such as transducers and sensors, and they already occupy a unique place in the biomedical field. The objective of this project is to study multiferroic nanofibers made of cobalt ferrite CoFe2O4 (CFO) and barium titanate BaTiO3 (BTO) with a specific focus in the characterization of the ferroelectric phase. We researched the state of knowledge …
Molecules And Metals In The Distant Universe: Sub-Mm And Optical Spectroscopy Of Quasar Absorbers, Sean Stephen Morrison
Molecules And Metals In The Distant Universe: Sub-Mm And Optical Spectroscopy Of Quasar Absorbers, Sean Stephen Morrison
Theses and Dissertations
In order to gain a complete understanding of galaxy formation and evolution, knowledge of the atomic and molecular gas in the interstellar medium (ISM) is required. Absorption-line spectroscopy of quasars offers a powerful and luminosity independent probe of gas in distant galaxies. The Damped Lyman- systems (DLAs; 20.3 . log NHI ), are the highest neutral hydrogen column density quasar absorbers and contain a substantial fraction of the neutral gas available for star formation in the high-redshift Universe. This thesis presents a study of the metal content in some DLAs, based on optical spectroscopy, and a search for molecules based …
Neutrino And Antineutrino Induced Meson Production, Libo Jiang
Neutrino And Antineutrino Induced Meson Production, Libo Jiang
Theses and Dissertations
Coherent meson production measurement is very important in physics research. First, the coherent pion production is a potential background to v oscillation in next generation of Long Base Line Experiment(ELBNF/DUNE); second, coherent pion and coherent p production provide a detailed test of CVC and PCAC hypothesis; third, coherent meson production can be used to monitor the neutrino and anti-neutrino fluxes in the experiment. This dissertation focuses on two parts: coherent pi production in NOMAD, and coherent p simulation using LBNF fluxes. With the NOMAD data, the ratio between cross-sections of coherent pi- and v charged current interactions was measured and …