Event Title
Magnetoresistance of Silver Telluride and Silver Selenide Thin Films
Presentation Type
Poster/Portfolio
Presenter Major(s)
Physics
Mentor Information
Harold Schnyders
Department
Physics
Location
Henry Hall Atrium 44
Start Date
10-4-2013 2:00 PM
End Date
10-4-2013 3:00 PM
Keywords
Physical Science
Abstract
Previous studies have found that Ag2Te and Ag2Se thin films possess a large positive magnetoresistance. Our preliminary research with these materials suggests that the surface state effects are significant even in bulk and poly crystal forms at room temperature. If this is the case, Ag2Te and Ag2Se would be practical materials for commercial applications, particularly thermoelectrics. Therefore, our first goal in researching Ag2Te and Ag2Se is to minimize the bulk contributions by reducing the dimensions: we will create thin films on silicon dioxide crystals. Our second goal is to investigate the ability to develop and maintain a tunable Fermi level through modifying the electrochemistry by gating the thin films on silicon. This research will further the understanding of this material and its potential commercial uses.
Magnetoresistance of Silver Telluride and Silver Selenide Thin Films
Henry Hall Atrium 44
Previous studies have found that Ag2Te and Ag2Se thin films possess a large positive magnetoresistance. Our preliminary research with these materials suggests that the surface state effects are significant even in bulk and poly crystal forms at room temperature. If this is the case, Ag2Te and Ag2Se would be practical materials for commercial applications, particularly thermoelectrics. Therefore, our first goal in researching Ag2Te and Ag2Se is to minimize the bulk contributions by reducing the dimensions: we will create thin films on silicon dioxide crystals. Our second goal is to investigate the ability to develop and maintain a tunable Fermi level through modifying the electrochemistry by gating the thin films on silicon. This research will further the understanding of this material and its potential commercial uses.