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Title: Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material

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{sub 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.

Authors:
 [1];  [2]; ; ;  [1]; ; ;  [3]; ;  [4];  [1];  [5]
  1. Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale) (Germany)
  2. (United Kingdom)
  3. Martin-Luther-Universitaet Halle-Wittenberg, Fachbereich Physik, D-06099 Halle (Germany)
  4. Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom)
  5. (Czech Republic)
Publication Date:
OSTI Identifier:
20861586
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevLett.98.016101; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CATALYSTS; CERAMICS; DIAMONDS; ELECTRONIC STRUCTURE; FCC LATTICES; FERROMAGNETISM; IMPURITIES; OXYGEN; SPIN; VACANCIES; ZIRCONIUM; ZIRCONIUM OXIDES

Citation Formats

Ostanin, S., Department of Physics, University of Warwick, Coventry CV4 7AL, Ernst, A., Sandratskii, L. M., Bruno, P., Daene, M., Hergert, W., Mertig, I., Hughes, I. D., Staunton, J. B., Kudrnovsky, J., and Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8. Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.016101.
Ostanin, S., Department of Physics, University of Warwick, Coventry CV4 7AL, Ernst, A., Sandratskii, L. M., Bruno, P., Daene, M., Hergert, W., Mertig, I., Hughes, I. D., Staunton, J. B., Kudrnovsky, J., & Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8. Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material. United States. doi:10.1103/PHYSREVLETT.98.016101.
Ostanin, S., Department of Physics, University of Warwick, Coventry CV4 7AL, Ernst, A., Sandratskii, L. M., Bruno, P., Daene, M., Hergert, W., Mertig, I., Hughes, I. D., Staunton, J. B., Kudrnovsky, J., and Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8. Fri . "Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material". United States. doi:10.1103/PHYSREVLETT.98.016101.
@article{osti_20861586,
title = {Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material},
author = {Ostanin, S. and Department of Physics, University of Warwick, Coventry CV4 7AL and Ernst, A. and Sandratskii, L. M. and Bruno, P. and Daene, M. and Hergert, W. and Mertig, I. and Hughes, I. D. and Staunton, J. B. and Kudrnovsky, J. and Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8},
abstractNote = {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{sub 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.},
doi = {10.1103/PHYSREVLETT.98.016101},
journal = {Physical Review Letters},
number = 1,
volume = 98,
place = {United States},
year = {Fri Jan 05 00:00:00 EST 2007},
month = {Fri Jan 05 00:00:00 EST 2007}
}