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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.

Field of science

  • /natural sciences/physical sciences/optics/microscopy/electron microscopy
  • /natural sciences/chemical sciences/inorganic chemistry/inorganic compounds

Call for proposal

FP7-NMP-2013-EU-Japan
See other projects for this call

Funding Scheme

CP-FP - Small or medium-scale focused research project
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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)

UNIVERSITAET BIELEFELD
Germany
EU contribution
€ 611 300
Address
Universitaetsstrasse 25
33615 Bielefeld
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Guenter Reiss (Prof.)
UNIVERSITAT KONSTANZ
Germany
EU contribution
€ 201 600
Address
Universitatsstrasse 10
78464 Konstanz
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Kerstin Grote-Oexle (Mrs.)
BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM
Hungary
EU contribution
€ 165 600
Address
Muegyetem Rakpart 3
1111 Budapest
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Laszlo Szunyogh (Prof.)
MACKINTOSH CONSULTANTS (UK) LLP
United Kingdom
EU contribution
€ 108 201
Address
Pinfold Lane The Chase Northop Hall
CH7 6HE Mold Flintshire
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Joanna Mackintosh (Mrs.)