Sökning: WFRF:(Skokov K. P.) >
Magnetic properties...
Magnetic properties of (Fe1-xCox)(2)B alloys and the effect of doping by 5d elements
-
- Edström, Alexander (författare)
- Uppsala universitet,Materialteori
-
- Werwinski, M. (författare)
- Uppsala universitet,Materialteori
-
- Iusan, Diana (författare)
- Uppsala universitet,Materialteori
-
visa fler...
-
- Rusz, Jan (författare)
- Uppsala universitet,Materialteori
-
- Eriksson, Olle (författare)
- Uppsala universitet,Materialteori
-
- Skokov, K. P. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Radulov, I. A. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Ener, S. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Kuz'min, M. D. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Hong, J. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Fries, M. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Karpenkov, D. Yu. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Gutfleisch, O. (författare)
- Tech Univ Darmstadt, Dept Mat Sci, Funct Mat, D-64287 Darmstadt, Germany.
-
- Toson, P. (författare)
- Vienna Univ Technol, Inst Solid State Phys, Adv Magnet Grp, A-1040 Vienna, Austria.
-
- Fidler, J. (författare)
- Vienna Univ Technol, Inst Solid State Phys, Adv Magnet Grp, A-1040 Vienna, Austria.
-
visa färre...
-
(creator_code:org_t)
- 2015
- 2015
- Engelska.
-
Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 92:17
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://uu.diva-port... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- We have explored, computationally and experimentally, the magnetic properties of (Fe1-xCox)(2)B alloys. Calculations provide a good agreement with experiment in terms of the saturation magnetization and the magnetocrystalline anisotropy energy with some difficulty in describing Co2B, for which it is found that both full potential effects and electron correlations treated within dynamical mean field theory are of importance for a correct description. The material exhibits a uniaxial magnetic anisotropy for a range of cobalt concentrations between x = 0.1 and x = 0.5. A simple model for the temperature dependence of magnetic anisotropy suggests that the complicated nonmonotonic behavior is mainly due to variations in the band structure as the exchange splitting is reduced by temperature. Using density functional theory based calculations we have explored the effect of substitutionally doping the transition metal sublattice by the whole range of 5d transition metals and found that doping by Re or W elements should significantly enhance the magnetocrystalline anisotropy energy. Experimentally, W doping did not succeed in enhancing the magnetic anisotropy due to formation of other phases. On the other hand, doping by Ir and Re was successful and resulted in magnetic anisotropies that are in agreement with theoretical predictions. In particular, doping by 2.5 at.% of Re on the Fe/Co site shows a magnetocrystalline anisotropy energy which is increased by 50% compared to its parent (Fe0.7Co0.3)(2)B compound, making this system interesting, for example, in the context of permanent magnet replacement materials or in other areas where a large magnetic anisotropy is of importance.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Edström, Alexand ...
-
Werwinski, M.
-
Iusan, Diana
-
Rusz, Jan
-
Eriksson, Olle
-
Skokov, K. P.
-
visa fler...
-
Radulov, I. A.
-
Ener, S.
-
Kuz'min, M. D.
-
Hong, J.
-
Fries, M.
-
Karpenkov, D. Yu ...
-
Gutfleisch, O.
-
Toson, P.
-
Fidler, J.
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
och Den kondenserade ...
- Artiklar i publikationen
-
Physical Review ...
- Av lärosätet
-
Uppsala universitet