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We describe a mechanism to control energy and magnetisation currents in anartificial spin-chain, consisting of an array of Permalloy nano-disks coupledthrough the magneto-dipolar interaction. The chain is kept out of equilibriumby two thermal baths with different temperatures connected to its ends, whichcontrol the current propagation. Transport is enhanced by applying a uniformradio frequency pump field resonating with some of the spin-wave modes of thechain. Moreover, the two currents can be controlled independently by tuning thestatic field applied on the chain. Thus we describe two effective means for theindependent control of coupled currents and the enhancement of thermal andspin-wave conductivity in a realistic magnonics device, suggesting that similareffects could be observed in a large class of nonlinear oscillating systems.

Nanoscale control of heat and spin conductance in artificial spin chains