Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 2 of 2
Full-Text Articles in Physical Sciences and Mathematics
Spin-Mediated Transport In Superconducting And Spin-Polarized Systems, Joseph C. Prestigiacomo
Spin-Mediated Transport In Superconducting And Spin-Polarized Systems, Joseph C. Prestigiacomo
LSU Doctoral Dissertations
The effects of spin-imbalance on the electronic transport properties of spin-polarized and superconducting systems have been studied in detail. The transport properties of the quaternary Heusler alloys Co2MnSi1-xAlx (0≤x≤1), which have been theoretically predicted to develop a half-metallic band structure as x→0, were investigated. Resistivity versus temperature measurements as a function of Al concentration (x) revealed a systematic reduction in the residual resistivity ratio as well as a transition from weakly-localized to half-metallic conduction as x→0. From measurements of the ordinary and anomalous Hall effects, the charge carrier concentration was found to increase, while the anomalous Hall coefficient decreased by …
Equations Of State In A Strongly Interacting Relativistic System, Jason Paul Keith
Equations Of State In A Strongly Interacting Relativistic System, Jason Paul Keith
Open Access Theses & Dissertations
It has long been understood that the ground state of a superdense quark system, a Fermi liquid of weakly interacting quarks, is unstable with respect to the formation of diquark condensates. This nonperturbative phenomenon is essentially equivalent to the Cooper in-stability of conventional BCS superconductivity. As the quark pairs have nonzero color charge, this kind of superconductivity breaks the SU(3) color gauge symmetry, thus the phe-nomenon is called color superconductivity. However, not much is known about the behavior of quark systems at moderate densities between the formation of baryons and asymptotic freedom. Strong theoretical and experimental evidence suggests that there …