A magnetic shift register with out-of-plane magnetized layers
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Abstract
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.
Description
Keywords
Journal Title
Conference Name
Journal ISSN
1361-6528
Volume Title
Publisher
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/M008517/1)
European Association of Metrology Institutes (EURAMET) (EXL04-REG4)
Isaac Newton Trust (1119(v))