Creator | Title | Description | Subject | Date | ||
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Scarpulla, Michael | Carrier concentration dependencies of magnetization & transport in Ga1-xMnxAs1-yTey | We have investigated the transport and magnetization characteristics of Ga1-xMnxAs intentionally compensated with shallow Te donors. Using ion implantation followed by pulsed-laser melting, we vary the Te compensation and drive the system through a metal-insulator transition (MIT). This MIT is assoc... | Gallium arsenide; Ferromagnetic semiconductors; Magnetization; Resistivity | 2005 |
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Sperry, John S. | Hydraulic consequences of vessel evolution in angiosperms | We tested two hypotheses for how vessel evolution in angiosperms influenced xylem function. First, the transition to vessels decreased resistance to flow--often considered the driving force for their evolution. Second, the transition to vessels compromised safety from cavitation--a constraint emergi... | Cavitation; Resistivity; Perforation | 2007 |