Evidence for differentiation in the iron-helicoidal chain in GdFe<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub>
書誌事項
- 公開日
- 2005-09-23
- 権利情報
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- http://journals.iucr.org/services/copyrightpolicy.html
- http://journals.iucr.org/services/copyrightpolicy.html#TDM
- DOI
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- 10.1107/s0108768105017362
- 公開者
- International Union of Crystallography (IUCr)
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説明
<jats:p>A single-crystal X-ray structure study of gadolinium triiron tetraborate, GdFe_3(BO_3)_4, at room temperature and at 90 K is reported. At room temperature GdFe_3(BO_3)_4 crystallizes in a trigonal space group, R32 (No. 155), the same as found for other members of the iron borate family <jats:italic>R</jats:italic>Fe_3(BO_3)_4. At 90 K the structure of GdFe_3(BO_3)_4 transforms to the space group P3_{1}21 (No. 152). The low-temperature structure determination gives new insight into the weakly first-order structural phase transition at 156 K and into the related Raman phonon anomalies. The presence of two inequivalent iron chains in the low-temperature structure provides a new perspective on the interpretation of the low-temperature magnetic properties.</jats:p>
収録刊行物
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- Acta Crystallographica Section B Structural Science
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Acta Crystallographica Section B Structural Science 61 (5), 481-485, 2005-09-23
International Union of Crystallography (IUCr)
