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|Title:||Spin transfer switching characteristics in a Pd/Co m/Cu/Co/ Pd n pseudo spin-valve nanopillar with perpendicular anisotropy||Authors:||Thiyagarajah, N.
|Issue Date:||1-Apr-2012||Citation:||Thiyagarajah, N., Lee, K.-I., Bae, S. (2012-04-01). Spin transfer switching characteristics in a Pd/Co m/Cu/Co/ Pd n pseudo spin-valve nanopillar with perpendicular anisotropy. Journal of Applied Physics 111 (7) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3675150||Abstract:||We successfully demonstrate spin transfer switching (STS) characteristics in a Pd/Co m/Cu/Co/Pd n pseudo spin-valve nanopillar with 100 nm diameter. We observed lower critical current density and high giant magnetoresistance (GMR) ratio in our devices compared to other fully perpendicularly magnetized pseudo spin-valve structures. The devices showed a current-perpendicular-to-plane GMR of 1.2 and a STS critical current density of J AP-P -2.6 × 10 7 A/cm 2 and J P-AP 3.8 × 10 7 A/cm 2. The observed low critical current density is thought to be due to higher spin-transfer efficiency arising from smaller spin orbital scattering, longer spin diffusion length of the thinner Pd, and thinner soft-layer-film thickness and coercivity in the nanopillar devices. © 2012 American Institute of Physics.||Source Title:||Journal of Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/84214||ISSN:||00218979||DOI:||10.1063/1.3675150|
|Appears in Collections:||Staff Publications|
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