Deterministic and time resolved thermo-magnetic switching in a nickel nanowire.

ABSTRACT: Heating a ferromagnetic material is often perceived as detrimental for most applications. This is indeed the case for modern nano-scaled spintronic devices which are operated solely (at least ideally) by an electric current. Heat is a by-product of the current-driven operation and it deteriorates many functionalities of the device. A large scientific and technological effort is devoted these days to avoid heat in modern magnetic nano devices. Here we show that heat can be used to provide an additional and useful degree of freedom in the control of the local magnetization at the nanoscale. In a ferromagnetic nanowire, temperature is used to induce a magnetic switching through a perfectly deterministic mechanism. The nucleation of the magnetic domain walls that triggers the switching can be

SUBMITTER: Proenca MP 

PROVIDER: S-EPMC6874679 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature