Online seminar: A universal inverse-design magnonic devices

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Online seminar: A universal inverse-design magnonic device

By Prof. Chumak, Univ. Vienna, Austria

Magnons, the quanta of spin waves, can potentially be used for energy-efficient data processing. The approach can, in particular, leverage the concept of inverse design, which involves defining a desired functionality and then using a feedback-loop algorithm to optimize device design. Here we report a simulation-free inverse-design device that can implement various radiofrequency components and can process data in the gigahertz range. The device consists of a square array of independent direct current loops on top of a yttrium iron garnet film that generate a complex reconfigurable magnetic medium. We use two feedback-loop algorithms—direct search optimization and a genetic algorithm—to configure the field patterns and create a linear radiofrequency notch filter and a demultiplexer.


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  • Starts 12 February 2011 06:00 AM UTC
  • Ends 11 February 2025 11:00 PM UTC
  • No Admission Charge

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Prof. Andrii Chumak

Topic:

A universal inverse-design magnon

Magnons, the quanta of spin waves, can potentially be used for energy-efficient data processing. The approach can, in particular, leverage the concept of inverse design, which involves defining a desired functionality and then using a feedback-loop algorithm to optimize device design. Here we report a simulation-free inverse-design device that can implement various radiofrequency components and can process data in the gigahertz range. The device consists of a square array of independent direct current loops on top of a yttrium iron garnet film that generate a complex reconfigurable magnetic medium. We use two feedback-loop algorithms—direct search optimization and a genetic algorithm—to configure the field patterns and create a linear radiofrequency notch filter and a demultiplexer.

Biography:

A Chumak finished his PhD at Taras Shevchenko National University of Kyiv in 2009 and joined the group of Burkard Hillebrands at the Kaiserslauter University of technology as PostDoc. He became a Principal Investigator in 2011 to study magnonic crystals and spin-orbit phenomena. In 2016, Dr. Chumak habilitated at TU Kaiserslautern, received the prestigious ERC Starting Grant "Magnonic Nano-Circuits for Novel Computer Systems”, and continued his research as Assistant Professor. In 2019, Dr. Chumak was appointed as a Full Professor and Head of the Nanomagnetism and Magnonics Research Unit at the Faculty of Physics, University of Vienna. The research topics of the group cover magnonics, RF applications, spintronics and quantum magnonics at mK temperatures.

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Address:Vienna , Austria