Synthesis, Crystal Structure, and Vibrational and Optical Spectroscopy of the First Quaternary Alkaline-Earth Rare Earth Thiophosphates Ba3Ln2[P4S16] (Ln = Gd−Er)

2006 ◽  
Vol 18 (1) ◽  
pp. 187-197 ◽  
Author(s):  
Yvonne Klawitter ◽  
Wolfgang Bensch ◽  
Claudia Wickleder
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Optical Spectroscopy ◽  
Alkaline Earth

Über das Erdalkalimetall-Lanthanoid-Kupfer-Oxomolybdat (Cu0,22Mg0 ,78)BaNd2Mo4O16/The Alkaline Earth Rare Earth Copper-Oxomolybdate (Cu0.22Mg0.78)BaNd2Mo4O16

1995 ◽  
Vol 50 (4) ◽  
pp. 577-580 ◽  
Author(s):  
H. Szillat ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Single Crystals ◽  
Alkaline Earth ◽  
Three Dimensional ◽  
Space Group ◽  
X Ray ◽  
Ray Methods

Single crystals of (Cu0.22Mg0.78)BaNd2Mo4O16 have been prepared by crystallization from melts and investigated by X-ray methods. The compound crystallizes monoclinically, space group C62h - C12/c1, Z = 4, a = 5.351(1), b = 12.891(2), c = 19.391(4) Å,β = 90.899(14)° and is isotypic to CuKHo2Mo4O16. The crystal structure is dominated by BaO10 and NdO8 polyhedra forming a three-dimensional polyhedra network, which is filled by axially distorted (Cu,Mg)O6 octahedra and MoO4 tetrahedra.

Phase structure control and optical spectroscopy of rare-earth activated GdF3 nanocrystal embedded glass ceramics via alkaline-earth/alkali-metal doping

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71176-71187 ◽  
Author(s):  
Shen Liu ◽  
Daqin Chen ◽  
Zhongyi Wan ◽  
Yang Zhou ◽  
Ping Huang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Alkali Metal ◽  
Optical Spectroscopy ◽  
Phase Structure ◽  
Alkaline Earth ◽  
Glass Ceramics ◽  
Glass Crystallization ◽  
Metal Doping ◽  
Structure Control

Alkaline-earth/alkali-metal dopant-induced hexagonal and orthorhombic GdF3 nanocrystal embedded glass ceramics were fabricated via glass crystallization.

On the Crystal Structure and Optical Spectroscopy of Rare Earth Comprising Quaternary Tungstates Li3Ba2RE3(WO4)8 (RE = La-Nd, Sm-Ho)

2021 ◽  
Author(s):  
Jan-Niklas Keil ◽  
Christian Paulsen ◽  
Florian Rosner ◽  
Rainer Pöttgen ◽  
Thomas Jüstel
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Single Crystal ◽  
Optical Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Synthesis Route ◽  
Ceramic Synthesis

The quaternary tungstates Li3Ba2RE3(WO4)8 (RE = La-Nd, Sm-Ho) were obtained by a ceramic synthesis route and were characterized by powder and single crystal X-ray diffraction. The structures of Li3Ba2Pr3(WO4)8 and Li3Ba2Tb3(WO4)8 were...

Preparation, crystal structure and optical spectroscopy of the rare earth complexes (RE3+=Sm, Eu, Gd and Tb) with 2-thiopheneacetate anion

2005 ◽  
Vol 751 (1-3) ◽  
pp. 85-94 ◽  
Author(s):  
Ercules E.S. Teotonio ◽  
Hermi F. Brito ◽  
Maria Cláudia F.C. Felinto ◽  
Larry C. Thompson ◽  
Victor G. Young ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Optical Spectroscopy ◽  
Rare Earth Complexes ◽  
The Rare Earth

Ordering in rare earth doped Bi2(Sr or Ca)3-xRxCu2O8+δ superconductors

1991 ◽  
Vol 49 ◽  
pp. 1090-1091
Author(s):  
D. P. Beesabathina ◽  
S. Nahm ◽  
L. Salamanca-Riba ◽  
S. M. Green ◽  
W. Jiang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Alkaline Earth ◽  
High Resolution Electron Microscopy ◽  
Superconducting Properties ◽  
Cation Disorder ◽  
Resolution Electron ◽  
Layer Stacking ◽  
Rare Earth Doped ◽  
Alkaline Earth Cations

The crystal structure of Bi2Sr2Can-1CunO2n+6+δ compounds with Tc's up to 115 K has been studied extensively. Bi2Sr2CaCu2O8+s (Bi2212) with Tc ≈ 90 K has modular layered structures in which Cu and O sheets, typical of all the high Tc superconductors, are separated by layers of alkaline earth cations, and interleaved with Bi2O2 layers. It has been reported that the structures are complicated by incommensurate modulations, cation disorder, layer stacking faults and other nonperiodic behavior which in turn may be related to the superconducting properties. In this work we use high resolution electron microscopy (HRTEM) to investigate the crystal structure, and defect structure of two families of related Bi2212 superconductors. Namely, 1) Bi2Ca3-xRxCu2O8+δ and 2) Bi2Ca3-xRxCu2O8+δ, where R is a rare earth element.

Phase composition of modern microcrystalline modifiers containing silicon, alkaline earth and rare earth metals

2020 ◽  
pp. 25-34
Author(s):  
V. P. Ermakova ◽  
◽  
S. Yu. Melchakov ◽  
V. G. Smirnova ◽  
L. A. Ovchinnikova ◽  
...  
Keyword(s):  
Rare Earth ◽  
Phase Composition ◽  
Alkaline Earth ◽  
Rare Earth Metals

ChemInform Abstract: RADIOCRYSTALLOGRAPHIC AND OPTICAL STUDY OF DOUBLE RARE EARTH AND ALKALINE EARTH GALLATES

1978 ◽  
Vol 9 (5) ◽  
Author(s):  
NGUYEN-TRUT-DINH NGUYEN-TRUT-DINH ◽  
G. LE FLEM ◽  
J. FAVA ◽  
A. DAOUDI ◽  
G. DEMAZEAU
Keyword(s):  
Rare Earth ◽  
Alkaline Earth ◽  
Optical Study

Synthesis and crystal structure of (Ca, R)(Mn, Ti)O3 (R, rare earth)

2006 ◽  
Vol 408-412 ◽  
pp. 1173-1176 ◽  
Author(s):  
Migaku Kobayashi ◽  
Ryouko Katsuraya ◽  
Syou Kurita ◽  
Makoto Yamaguchi ◽  
Hiroshisa Satoh ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Synthesis And Crystal Structure
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