INL is capable to fabricate nanopillars out of MTJ stacks with diameters below 100 nm. We succeeded with the typical stack with free layer on top of the stack as well as reversed stacks. The later have the benefit of a free layer that is in direct contact with the bottom contact material. These two approaches were applied to fabricate devices used for research on MTJ-based spin transfer torque nano-oscillators (STNOs) and Spin Hall nano-oscillators (SHNOs) described in the following.

Tarequzzaman, M; Böhnert, T; Decker, M; Costa, J D; Borme, J; Lacoste, B; Paz, E; Jenkins, A S; Serrano-Guisan, S; Back, C H; Ferreira, R; Freitas, P P

Spin torque nano-oscillator driven by combined spin injection from tunneling and spin Hall current Journal Article

Communications Physics, 2 (1), pp. 20, 2019, ISSN: 2399-3650.

Abstract | Links | BibTeX

Tarequzzaman, M; Jenkins, A S; Böhnert, T; Borme, J; Martins, L; Paz, E; Ferreira, R; Freitas, P P

Broadband voltage rectifier induced by linear bias dependence in CoFeB/MgO magnetic tunnel junctions Journal Article

Applied Physics Letters, 112 (25), pp. 252401, 2018, (arXiv: 1804.04104).

Abstract | Links | BibTeX

Tarequzzaman, M; Bohnert, T; Jenkins, A S; Borme, J; Paz, E; Ferreira, R; Freitas, P P

Influence of MgO Tunnel Barrier Thickness on the Output Power of Three-Terminal Spin Hall Nano-Oscillators Journal Article

IEEE Transactions on Magnetics, pp. 1–4, 2018.

Links | BibTeX

Costa, J D; Serrano-Guisan, S; Lacoste, B; Jenkins, A S; Böhnert, T; Tarequzzaman, M; Borme, J; Deepak, F L; Paz, E; Ventura, J; Ferreira, R; Freitas, P P

High power and low critical current density spin transfer torque nano-oscillators using MgO barriers with intermediate thickness Journal Article

Scientific Reports, 7 (1), 2017.

Links | BibTeX

Costa, J D; Serrano-Guisan, S; Borme, J; Deepak, F L; Tarequzzaman, M; Paz, E; Ventura, J; Ferreira, R; Freitas, P P

Impact of MgO Thickness on the Performance of Spin-Transfer Torque Nano-Oscillators Journal Article

IEEE Transactions on Magnetics , 51 (11), 2015.

Links | BibTeX

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