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Heusler Alloy Replacement for Iridium

Objective

The proposed HARFIR project intends to develop antiferromagnetic (AF) Heusler alloy (HA) films to replace the antiferromagnetic alloy Iridium Manganese (IrMn), which has been widely used in all spin electronic devices including hard disk drives and next-generation magnetic memories. Accordingly the price of Ir has risen by a factor of 4 in the last five years and by more than a factor of 10 in the last decade. It is expected to soar perhaps by a factor of 100 due to its wider applications.

It is widely recognised that spin electronic technologies will displace volatile semiconductor memory technology within the next decade. Therefore the lack of availability of one crucial element from within the periodic table is a critical issue to be solved urgently.

We therefore aim to replace Ir to reduce the cost of an AF film by a factor of 10 as compared with the current IrMn. We will combine our expertise in ab initio calculations and HA film growth techniques to seek a highly anisotropic AF HA films. These films will be characterised both structurally and magnetically using synchrotron beamlines, high-resolution (scanning) transmission electron microscopy and highly sensitive electrical and magnetic measurement facilities available within the consortium. We will demonstrate a device concept with the developed AF HA films at the end of this project, showing an exchange bias greater than 1 kOe in sheet form and a blocking temperature greater than 300K.

To our knowledge we are the first group to realise the criticality of the position with regard to the supply of Ir. The developed AF HA films will be patented with the royalties shared equally among the partners in the EU-Japan consortium. The innovation within HARFIR is therefore extremely high.
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Coordinator

UNIVERSITY OF YORK

Address

Heslington
Yo10 5dd York North Yorkshire

United Kingdom

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 695 209

Administrative Contact

David Lauder (Mr.)

Participants (4)

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UNIVERSITAET BIELEFELD

Germany

EU Contribution

€ 611 300

UNIVERSITAT KONSTANZ

Germany

EU Contribution

€ 201 600

BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM

Hungary

EU Contribution

€ 165 600

MACKINTOSH CONSULTANTS (UK) LLP

United Kingdom

EU Contribution

€ 108 201

Project information

Grant agreement ID: 604398

Status

Closed project

  • Start date

    1 September 2013

  • End date

    31 March 2017

Funded under:

FP7-NMP

  • Overall budget:

    € 2 312 580,01

  • EU contribution

    € 1 781 910

Coordinated by:

UNIVERSITY OF YORK

United Kingdom