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Mn-stabilized zirconia: From imitation diamonds to a new potential High-T-C ferromagnetic spintronics material
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Ostanin, S., Ernst, A., Sandratskii, L. M., Bruno, P., Daene, M., Hughes, I. D., Staunton, Julie B., Hergert, W., Mertig, I. and Kudrnovsky, J. (2007) Mn-stabilized zirconia: From imitation diamonds to a new potential High-T-C ferromagnetic spintronics material. Physical Review Letters, Vol.98 (No.1). doi:10.1103/PhysRevLett.98.016101 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.016101
Abstract
From the basis of ab initio electronic structure calculations which include the effects of thermally excited magnetic fluctuations, we predict Mn-stabilized cubic zirconia to be ferromagnetic above 500 K. We find this material, which is well known both as an imitation diamond and as a catalyst, to be half-metallic with the majority and minority spin Mn impurity states lying in zirconia's wide gap. The Mn concentration can exceed 40%. The high-T-C ferromagnetism is robust to oxygen vacancy defects and to how the Mn impurities are distributed on the Zr fcc sublattice. We propose this ceramic as a promising future spintronics material.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 5 January 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.1 | ||||
Number of Pages: | 4 | ||||
DOI: | 10.1103/PhysRevLett.98.016101 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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