3 papers
cond-mat.mtrl-sci2021
Emergence of Ferromagnetism Through the Metal-Insulator Transition in Undoped Indium Tin Oxide Films
Samuel Mumford, Tiffany Paul, Aharon Kapitulnik
We present a detailed study of the emergence of bulk ferromagnetism in low carrier density samples of undoped indium tin oxide (ITO). We used annealing to increase the density of o…
cond-mat.mtrl-sci2020
Sample Shape and Boundary Dependence of Measured Transverse Thermal Properties
Samuel Mumford, Tiffany Paul, Erik Kountz +1
Despite increased interest in thermal Hall measurements for the analysis of insulating quantum materials, there remains large uncertainty in such measurements due to contact misali…
cond-mat.mes-hall2019
A Cantilever Torque Magnetometry Method for the Measurement of Hall Conductivity of Highly Resistive Samples
Samuel Mumford, Tiffany Paul, Seung Hwan Lee +2
We present the first measurements of Hall conductivity utilizing a new torque magnetometry method designed for insulators. A Corbino disk exhibits a magnetic dipole moment proporti…