A magnetic shift register with out-of-plane magnetized layers
Institute of Physics Publishing
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Mansell, R., Beguivin, A., Fernandez-Pacheco, A., Lee, J., Petit, D., & Cowburn, R. (2017). A magnetic shift register with out-of-plane magnetized layers. Nanotechnology, 28 (38. 5201)https://doi.org/10.1088/1361-6528/aa7f63
Using out-of-plane magnetized layers, a lateral shift register made from discrete elements is demonstrated. By carefully designing the in-plane shape of the elements which make up the shift register, both the position of nucleation of new domains and the coercivity of the element can be controlled. The dipole field from a neighbouring element placed tens of nanometers away creates a bias field on the nucleation site, which can be used to create a NOT gate. By chaining these NOT gates together, a shift register can be created where data bits consisting of neighbouring layers with aligned magnetization are propagated synchronously under a symmetric applied magnetic field. The operation of a 16 element shift register is shown, including field coupled data injection.
Is supplemented by: https://doi.org/10.17863/CAM.10557
This research is funded by the European Community under the Seventh Framework Program ERC Contract No. 247368: 3SPIN, and by EMRP JRP EXL04 SpinCal. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the EU. AB acknowledges DTA funding from the EPSRC. A.F.-P. acknowledges support from the EPSRC Early Career Fellowship EP/M008517/1 and a Winton Fellowship.
European Research Council (247368)
European Association of Metrology Institutes (EURAMET) (EXL04-REG4)
Isaac Newton Trust (1119(v))
External DOI: https://doi.org/10.1088/1361-6528/aa7f63
This record's URL: https://www.repository.cam.ac.uk/handle/1810/265250
Attribution 4.0 International
Licence URL: http://creativecommons.org/licenses/by/4.0/