Analysis of reliable sub-ns spin-torque switching under transverse bias magnetic fields
- Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Università di Napoli “Federico II”, I-80125 Napoli (Italy)
- Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Torino (Italy)
- ECE Department and UMIACS, University of Maryland, College Park, Maryland 20742 (United States)
The switching process of a magnetic spin-valve nanosystem subject to spin-polarized current pulses is considered. The dependence of the switching probability on the current pulse duration is investigated. The further application of a transverse field along the intermediate anisotropy axis of the particle is used to control the quasi-random relaxation of magnetization to the reversed magnetization state. The critical current amplitudes to realize the switching are determined by studying the phase portrait of the Landau-Lifshtz-Slonczewski dynamics. Macrospin numerical simulations are in good agreement with the theoretical prediction and demonstrate reliable switching even for very short (below 100 ps) current pulses.
- OSTI ID:
- 22409972
- Journal Information:
- Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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