PHYSICS PHD DISSERTATION DEFENSE: Samuel Mumford

Ph.D. Candidate:  Samuel Mumford

Research Advisor:  Aharon Kapitulnik

Date: Friday, September 17, 2021
Time: 10:30am PDT

Zoom Link: https://stanford.zoom.us/j/91551919496

Zoom Password: email mariaf67 [at] stanford.edu (mariaf67[at]stanford[dot]edu)

 

Title: Integrated Circuit Cantilever Torque Magnetometry

Abstract: Hall conductivity is a key measured property in condensed matter physics, but traditional methods to measure Hall conductivity fail for insulating materials at low temperature. We have developed a new method utilizing cantilever torque magnetometry with an integrated Corbino disk to measure Hall conductivity in previously inaccessible materials. We have utilized Corbino disk torque magnetometry to measure Hall conductivity and the onset of ferromagnetism in indium tin oxide. Currently, we are utilizing the capability to integrate circuits on high-Q cantilevers to measure previously inaccessible quantities such as the magnetization of gated graphene-hBN flakes.