Inverse-design magnonic devices

Autor(en)

Qi Wang, Andrii V. Chumak, Philipp Pirro

Abstrakt

The field of magnonics offers a new type of low-power information processing, in which magnons, the quanta of spin waves, carry and process data instead of electrons. Many magnonic devices were demonstrated recently, but the development of each of them requires specialized investigations and, usually, one device design is suitable for one function only. Here, we introduce the method of inverse-design magnonics, in which any functionality can be specified first, and a feedback-based computational algorithm is used to obtain the device design. We validate this method using the means of micromagnetic simulations. Our proof-of-concept prototype is based on a rectangular ferromagnetic area that can be patterned using square-shaped voids. To demonstrate the universality of this approach, we explore linear, nonlinear and nonreciprocal magnonic functionalities and use the same algorithm to create a magnonic (de-)multiplexer, a nonlinear switch and a circulator. Thus, inverse-design magnonics can be used to develop highly efficient rf applications as well as Boolean and neuromorphic computing building blocks.

Organisation(en)

Nanomagnetismus und Magnonik

Externe Organisation(en)

Technische Universität Kaiserslautern

Journal

Nature Communications

Band

12

Anzahl der Seiten

9

ISSN

2041-1723

DOI

https://doi.org/10.1038/s41467-021-22897-4

Publikationsdatum

12-2020

Peer-reviewed

Ja

ÖFOS 2012

103017 Magnetismus

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie, Allgemeine Chemie, Allgemeine Biochemie, Genetik und Molekularbiologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/7cdfc593-832f-4159-96a9-223c325524dd