X-ray absorption and magnetic circular dichroism studies of Co2FeAl in magnetic tunnel junctions
Journal Article
·
· IEEE Transactions on Magnetics
The bulk magnetic moment and the element specific magnetic moment of Co{sub 2}FeAl thin films were examined as a function of annealing temperature by alternating gradient magnetometer (AGM) and X-ray absorption spectroscopy (XAS)/X-ray magnetic circular dichroism (XMCD), respectively. A high magnetic moment can be achieved for all annealing temperatures and the predicted bulk and interface magnetic moment of about 5 {tilde A}{sub B} are reached via heating. We will also present tunnel magnetoresistance (TMR) values of up to 153% at room temperature and 260% at 13 K for MgO based magnetic tunnel junctions (MTJs) with Co{sub 2}FeAl and Co-Fe electrodes.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Advanced Light Source Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 983285
- Report Number(s):
- LBNL-3436E; ISSN 1941-0069; TRN: US201014%%457
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 46, Issue 6; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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