Wu, M. C. and Aziz, A. and Ali, M. and Marrows, C. H. and Hickey, B. J. and Barber, Z. H. and Blamire, M. G. (2009) Reduction in critical current of current induced switching in an inhomogeneous nanomagnet. Applied Physics Letters, 94 (12). ISSN 0003-6951
Full text not available from this repository.Abstract
We report low current-density switching of pseudospin valve nanopillars fabricated by a three-dimensional focused ion beam lithography. Simulations using the Landau-Liftshitz-Gilbert equation with Slonczewski spin transfer torque term demonstrate that magnetostatic coupling combined with an in-plane applied field results in a strongly inhomogeneous magnetization, which is close to the point of switching in both parallel and antiparallel configurations and so significantly reduced switching currents are possible.