A new potassium rare earth oxyborate K2La2(BO3)2O

A series of potassium rare earth oxyborates, K2RE2(BO3)2O (RE=La, Nd, Sm and Eu), have been synthesized. Single crystal of the first member of the series, K2La2(BO3)2O, has been grown by the flux method. Its structure, determined by single crystal X-ray diffraction, shows that it belongs to the mono...

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Veröffentlicht in:	Solid state sciences 2010-12, Vol.12 (12), p.2144-2147
Hauptverfasser:	ZENG, Q. D, LI, R. K
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Crystals Diffraction Exact sciences and technology Flux Inorganic compounds Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Physics Potassium Rare earth metals Salts Single crystals Solid state Structure of solids and liquids crystallography Structure of specific crystalline solids Unit cell X-rays
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Zusammenfassung:	A series of potassium rare earth oxyborates, K2RE2(BO3)2O (RE=La, Nd, Sm and Eu), have been synthesized. Single crystal of the first member of the series, K2La2(BO3)2O, has been grown by the flux method. Its structure, determined by single crystal X-ray diffraction, shows that it belongs to the monoclinic system, space group P21/c with unit cell parameters of a =11.422(2)aa, b =6.6803(13)aa, c =10.813(2)aa, beta =17.23(3)A degree and Z =4. Optical transmission spectrum shows that the K2La2(BO3)2O crystal is highly transparent from 215nm to 2750nm. Display Omitted
ISSN:	1293-2558 1873-3085
DOI:	10.1016/j.solidstatesciences.2010.09.013