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2015 | 127 | 2 | 594-596
Article title

Hyperfine Fields and Lattice Deformations in Ba and Sr Hexaferrites

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Abstracts
EN
Hyperfine magnetic fields on ⁵⁷Fe nuclei in Sr and Ba hexagonal ferrites are calculated in dependence on unit cell volume and c/a ratio. By analysing the local deformations of Fe-O-Fe triads the results are explained as changes to contact hyperfine field due to Fe-O covalency effects and supertransferred hyperfine fields. Most pronounced effect is found for bipyramidal iron Fe(b) where the total contact field is reduced due to noticeable shortening of Fe(b)-O bonds.
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Contributors
author
  • Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech Republic
author
  • Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech Republic
  • Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, Prague, Czech Republic
References
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Document Type
Publication order reference
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bwmeta1.element.bwnjournal-article-appv127n2142kz
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