Magnetic order and crystal fields in the Pnma phases of Tm2BaTO5 (T=Co and Ni)
Identifieur interne : 002244 ( Main/Exploration ); précédent : 002243; suivant : 002245Magnetic order and crystal fields in the Pnma phases of Tm2BaTO5 (T=Co and Ni)
Auteurs : S. J Harker [Pays-Bas] ; G. A Stewart [Pays-Bas] ; P. C. M Gubbens [Australie]Source :
- Journal of Alloys and Compounds [ 0925-8388 ] ; 2000.
Descripteurs français
- Pascal (Inist)
- 7525, 7680, Ba Co O Tm, Ba Ni O Tm, Baryum oxyde, Champ cristallin, Cobalt oxyde, Composé quaternaire, Décomposition quadripolaire, Dépendance température, Etude expérimentale, Interaction champ cristallin, Interaction hyperfine, Interaction échange, Nickel oxyde, Ordre magnétique, Réseau orthorhombique, Site cristallographique, Sous réseau, Spectrométrie Mössbauer, Thulium oxyde, Tm2BaCoO5, Tm2BaNiO5.
English descriptors
- KwdEn :
- Acta crystallogr, Additional transition, Bacoo, Bacuo, Banio, Barium oxides, Bato, Cobalt oxides, Cobaltate, Crystal field, Crystal field interactions, Crystallographic site, Doublet, Elsevier science, Exchange interaction, Exchange interactions, Experimental study, Grid searches, Gubbens, Harker, Hyperfine interactions, Magnetic interactions, Magnetic order, Magnetic ordering, Magnetic transition, Mirror plane, Moessbauer spectroscopy, Mossbauer, Mossbauer results, Mossbauer spectra, Mossbauer spectroscopy, Nickel oxides, Nickelate, Order transition, Orthorhombic lattices, Other techniques, Pnma, Pnma phase, Pnma phases, Pnma structure, Point charge model, Preferred solutions, Quadrupolar splitting, Quadrupole, Qualitative measure, Quaternary compounds, Sample preparation, Saturation moments, Solid state chem, Solid state commun, Solid state ionics, Sublattices, T5co, Temperature dependence, Temperature range, Thulium, Thulium oxides, Thulium sites, Transition metal, Tted, University college.
- Teeft :
- Acta crystallogr, Additional transition, Bacoo, Bacuo, Banio, Bato, Cobaltate, Doublet, Elsevier science, Exchange interaction, Grid searches, Gubbens, Harker, Magnetic interactions, Magnetic order, Magnetic transition, Mirror plane, Mossbauer, Mossbauer results, Mossbauer spectra, Mossbauer spectroscopy, Nickelate, Order transition, Other techniques, Pnma, Pnma phase, Pnma phases, Pnma structure, Point charge model, Preferred solutions, Quadrupole, Qualitative measure, Sample preparation, Saturation moments, Solid state chem, Solid state commun, Solid state ionics, T5co, Temperature dependence, Temperature range, Thulium, Thulium sites, Transition metal, Tted, University college.
Abstract
Abstract: The magnetic ordering and crystal field interactions of the Pnma phases of both Tm2BaCoO5 and Tm2BaNiO5 are investigated by 169Tm Mössbauer spectroscopy and the temperature-dependent hyperfine interactions are compared with those obtained elsewhere for Tm2BaCuO5. The Pnma phases are shown to order magnetically at temperatures of 3.5(2) K (Tm2BaCoO5) and 4.85(5) K (Tm2BaNiO5), the order being induced by the transition metal. For Tm2BaNiO5 an additional first-order transition observed at T≤1.4 K is identified with the independent magnetic order of the thulium sub-lattice.
Url:
DOI: 10.1016/S0925-8388(00)00840-9
Affiliations:
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Le document en format XML
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<term>Barium oxides</term>
<term>Bato</term>
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<term>7680</term>
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<term>Champ cristallin</term>
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<term>Décomposition quadripolaire</term>
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<term>Site cristallographique</term>
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<front><div type="abstract" xml:lang="en">Abstract: The magnetic ordering and crystal field interactions of the Pnma phases of both Tm2BaCoO5 and Tm2BaNiO5 are investigated by 169Tm Mössbauer spectroscopy and the temperature-dependent hyperfine interactions are compared with those obtained elsewhere for Tm2BaCuO5. The Pnma phases are shown to order magnetically at temperatures of 3.5(2) K (Tm2BaCoO5) and 4.85(5) K (Tm2BaNiO5), the order being induced by the transition metal. For Tm2BaNiO5 an additional first-order transition observed at T≤1.4 K is identified with the independent magnetic order of the thulium sub-lattice.</div>
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