- Advanced Condensed Matter Physics
- Theoretical and Computational Physics
- Quantum many-body systems
- Random Matrices and Applications
- Topological Materials and Phenomena
- Magnetic properties of thin films
- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
Yale University
2023-2025
University of Minnesota
2022
We have studied the magnetic moments of artificial spin ice arrays nanomagnets in both undistorted square and with a topological defect induced by single disclination. confirm that disclination induces global, macroscopic changes low-energy collective states nanomagnet moment configuration. Specifically, leads to Faraday lines effective flux run from center all way edge arrays. Moreover, geometric deformation, defect, curves geometry such these are channeled preferentially arrays’ curved...
Recent advancement in the switching of perpendicular magnetic tunnel junctions with an electric field has been a milestone for realizing ultra-low energy memory and computing devices. To integrate current spin-transfer torque-magnetic junction spin–orbit devices, typical linear fJ/V m range voltage controlled anisotropy (VCMA) needs to be significantly enhanced approaches that include new materials or stack engineering. A possible bidirectional 1.1 pJ/V VCMA effect predicted by using heavily...
We study the collective behavior of interacting arrays nanomagnetic tripods. These objects have six discrete moment states, in contrast to usual two states an Ising-like moment. Our experimental data demonstrate that triangular lattice form a ``tripod ice'' exhibits charge ordering among effective vertex magnetic charges, direct analogy artificial kagome spin ice. The results indicate tripods moments act as emergent local variables, with strong connections well-studied Potts and clock...