9 papers
Demonstrating magnetic memory in iron-rhodium structures using a quantum diamond microscope
Kristine V. Ung, Gregory M. Stephen, Nicholas A. Blumenschein +7
Iron-rhodium (FeRh) has a first-order phase transition near room temperature between antiferromagnetic (AFM) and ferromagnetic (FM) phases, making it a promising material for magne…
Evidence of a Hybridized Topological State in Weyl Semimetal/Topological Insulator MnSn/BiSb Heterostructures
Ryan T. Van Haren, Gillian P Boyce, Gregory M. Stephen +4
We report magnetotransport evidence of a hybridized Weyl semimetal (WSM) Fermi arc/topological insulator (TI) surface state at the interface of a ferromagnetic MnSn…
Spatially-resolved voltage-reversal due to Bernoulli potentials in dissipative BiSrCaCuO
Sharadh Jois, Gregory M. Stephen, Samuel W. LaGasse +3
We measure magneto-transport and critical currents in BiSrCaCuO Hall bar devices. Above critical current in an applied magnetic field, we observe longitudinal d…
Anomalous low-field magnetoresistance in FeGa single crystals
Michelle E. Jamer, Gregory M. Stephen, Brandon Wilfong +6
FeGa possesses a helical spin spiral with a complex competition between ferromagnetic and antiferromagnetic ground states. This competition generates multiple metamagnetic…
Direct Comparison of Static and Dynamic Measurements of Spin Generation in a Topological Insulator Thin Film
Vinay Sharma, Sharadh Jois, Ryan Van Haren +6
The competition between intrinsic spin-orbit physics, magnetic phenomena, and the quality of materials and interfaces governs the charge-to-spin conversion processes that are essen…
Probing Magnetic Properties of RuO Heterostructures Through the Ferromagnetic Layer
Frank M. Abel, Subhash Bhatt, Shelby S. Fields +20
RuO has been proposed as the prototypical altermagnetic material. However, several reports have recently questioned its intrinsic magnetic ordering, leading to conflicting fi…