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Structural invarian...
Structural invariance upon antiferromagnetic ordering in geometrically frustrated swedenborgite, CaBaCo2Fe2O7
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Reim, J. D. (author)
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Rosen, E. (author)
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- Schweika, Werner (author)
- Lund University,Lunds universitet,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Other Institutions and Utilities
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Meven, M. (author)
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Leo, N. R. (author)
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Meier, D. (author)
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Fiebig, M. (author)
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Schmidt, M. (author)
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Kuo, C-Y (author)
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Pi, T-W (author)
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Hu, Z. (author)
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Valldor, M. (author)
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(creator_code:org_t)
- 2014
- 2014
- English.
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In: Journal of Applied Crystallography. - 1600-5767. ; 47, s. 2038-2047
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http://dx.doi.org/10...
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Abstract
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- Centimetre-sized single crystals of high-quality CaBaCo2Fe2O7 were synthesized by the optical floating zone technique. The metal-to-metal stoichiometry and oxygen content were confirmed by spectroscopy and thermal reduction experiments. The hexagonal symmetry P6(3)mc (No. 186) well describes the powder X-ray and neutron diffraction as well as single-crystal neutron diffraction at all measured temperatures. This symmetry is also consistent with optical second harmonic generation data obtained between 10 and 295 K. However, a satisfactory structure description from single-crystal neutron diffraction data needs an oxygen split position. Specific heat, magnetic susceptibility and powder neutron diffraction data indicate a magnetic phase transition at T-N = 159 K to an antiferromagnetic ground state, but with a persisting hexagonal symmetry and intrinsic geometric frustration.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Reim, J. D.
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Rosen, E.
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Schweika, Werner
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Meven, M.
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Leo, N. R.
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Meier, D.
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show more...
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Fiebig, M.
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Schmidt, M.
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Kuo, C-Y
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Pi, T-W
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Hu, Z.
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Valldor, M.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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Journal of Appli ...
- By the university
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Lund University