The Rich Playground of Altermagnets
by
48/2-224 - Madrone
SLAC
Abstract: The topic of altermagnets has recently gained tremendous attention for the new physics present in these magnetic materials, as well as their potential impact in next-generation, low-power electronics. In this talk, I will show how my work in developing intuitive theoretical models can give us invaluable insights into how the electronic degrees of freedom – charge, spin, orbital and lattice – intertwine with each other in altermagnets. Such insights not only allow us to understand these materials in a very transparent way, but also predict unique phenomena, including signatures in magneto-optical experiments. Importantly, I will demonstrate that these models can be applied to more complex materials, as verified by first principles calculations and experiments, thus bringing the physics we learned from minimal models to real materials. Finally, I will share my research plans as a Panofsky Fellow at SLAC, namely, how we can leverage such interconnected degrees of freedom from my previous discoveries to design more efficient and sustainable spintronic devices through a combined theoretical, computational, and experimental effort; and how my research aligns with the newly established Center for Energy Efficient Magnonics.
Bio: Marc Vila Tusell completed his bachelor’s degree in Nanoscience and Nanotechnology from the Autonomous University of Barcelona, a Master of Research from Imperial College London, and obtained his PhD in theoretical physics at the Catalan Institute of Nanoscience and Nanotechnology in 2020. His PhD research focused on the theoretical exploration of spin transport in two-dimensional quantum materials such as graphene, transition metal dichalcogenides, and topological insulators. He then moved to the Lawrence Berkeley National Laboratory and UC Berkeley to work with Joel Moore, where he investigated a variety of topics in condensed matter physics, including altermagnetism. Currently, he is a postdoctoral researcher at the same institution working with Sinéad Griffin, combining theoretical models and first principles calculations to predict a variety of electronic, transport, and optical properties in altermagnets.
Seminar Recording: https://stanford.zoom.us/rec/share/cp7mjREcAD7KabcMMf1MGBrbWpFpQgEwJW5DLzpSK75tYtXnfsX0lfhZSunkt7s8.LPQk9T2ok1vgNZBA
Passcode for recording: RS%go1ED
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