Student: Shamika Sanjaykumar Dolas
Committee: Dr. Nathan Newman
Abstract:
The approach is to project an overview of the theoretical and experimental investigation of the properties of carrier concentrations in selected semiconductors suitable for axion detection in materials. We have performed experiments at low temperatures and high magnetic fields to obtain the general traits of the semiconductor carrier concentrations in different conditions. The experiments include electrical measurements which elucidate the role of freeze-out and magnetic field on the carrier concentration and its plasma frequency and loss tangent. We aimed to carry out statistical modeling of the variation of free carrier concentration properties with varying temperatures at varying high magnetic fields in the range of a few Tesla. This will be accomplished by Hall Measurements. We will further carry out simulations using the Drude Model of the optical responses in semiconductors. The Plasma frequencies of interest for dark matter detection (Axion detection) are from 5 GHz to 3 THz.
Zoom Room: https://asu.zoom.us/j/86132287768
Presentation Time: 12:00-1:00 PM (Arizona Time)
