< back to main site


Multiferroic magnetic recording read head technology for 1Tb/in2 and beyond.

Vopsaroiu, M; Blackburn, J; Muniz-Piniella, A; Cain, M G (2008) Multiferroic magnetic recording read head technology for 1Tb/in2 and beyond. J. Appl. Phys., 103. 07F506

Full text not available from this repository.


Multiferroic materials are very promising candidates for new technologies and applications because they exhibit simultaneously multiple cooperative phenomena (i.e. magnetic order, electric order and piezo-effects). The main feature of multiferroic materials is the magneto-electric (ME) effect, which can be used to engineer highly sensitive magnetic / electric sensors. In this paper we discuss the requirements of a new kind of magnetic recording read head for 1Tb/in2 recording densities, which is based on a multiferroic structure. The multiferroic sensor operates at room temperature via the strain mediated ME effect by producing a voltage signal in response to the magnetic field excitation from the recorded bits. We calculated the theoretical output from such a recording read head assuming a magnetic recording density of 1Tb/in2. Our calculations demonstrate that the proposed read head technology could replace in the future the conventional magneto-resistive (MR) read heads bringing also a number of considerable advantages, as detailed in the paper.

Item Type: Article
Keywords: Multiferroics, magnetic recording read head
Subjects: Advanced Materials
Advanced Materials > Functional Materials
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4087

Actions (login required)

View Item View Item