A Nano-Scale Crossbar with Spin Waves

In this paper, we present a nano-scale crossbar that is constructed with ferromagnetic spin waves. Unlike the traditional spin-based nano structures, which transmit charge, here waves are transmitted. As a result of this, the power consumption of the proposed module may be low. The crossbar architecture described here, while requiring the same number of switches as standard crossbars, is capable of simultaneously transmitting multiple waves on each of the spin-wave paths using different frequencies. As compared to the known molecular crossbars, this design is fault tolerant because alternate paths can be reconfigured in case of a failure on any of the switches.