pin waves, and their quanta magnons, are of great interest as potential data carriers in future low-energy computing devices. Recently, a set of magnonic data processing units was demonstrated. However, the development of each of them requires specialized investigations and, usually, one device design is suitable for one function only. Moreover, an integrated all-magnonic circuit, which is suitable for the cascading of multiple magnonic units, has not yet been demonstrated. In order to achieve these goals, a set of questions has to be answered: (1) What are the spin-wave characteristics in nanostructures? Can we extrapolate the classical theoretical models developed for macro- or microstructures to nanoscale? (2) Is there a universal magnonic data processing unit that has different functionalities? Which physical phenomenon could be chosen to develop such a unit? (3) How to realize a magnonic integrated circuit in which magnons are directly controlled by magnons themselves without any intermediate conversion to electric currents? Which nonlinear magnon effect allows for the realization of such a circuit? (4) Can we develop software to simplize the design progress for the magnonic devices with different functionalities? In this talk, I will present our recent results on the nanoscale magnonic devices and try to answer the above questions [1-4]. [1] Q. Wang et al.Nat. Electron.3, 765 (2020) [2] Q. Wnag et al.Phys. Rev. Lett.122, 247202 (2019) [3] Q. Wang et al.Sci. Adv.4, e1701517 (2018) [4] Q. Wang et al.Nat. Commun.12, 2636 (2021) |
