Crystal structure, thermal expansion and conductivity of anisotropic La1−xSrxGa1−2xMg2xO3−y (x=0.05, 0.1) single crystals

2003 ◽  
Vol 172 (2) ◽  
pp. 396-411 ◽  
Author(s):  
L. Vasylechko ◽  
V. Vashook ◽  
D. Savytskii ◽  
A. Senyshyn ◽  
R. Niewa ◽  
...  
Author(s):  
Eiken Haussühl ◽  
Siegfried Haussühl ◽  
Ekkehart Tillmanns

AbstractSingle crystals of the title compounds having optical quality and dimensions up to 60 mm have been grown from aqueous solutions. X-ray crystal structure analyses of K


Author(s):  
S. Haussühl ◽  
J. Schreuer

AbstractLarge single crystals of optical quality of betaine hydrogen dihydrogen iodate have been grown from aqueous solutions. An X-ray structure analysis yields space group


Author(s):  
J. Schreuer ◽  
T. Münch

AbstractLarge single crystals of optical quality of monoclinic ethylenediammonium bis(hydrogensuccinate) were grown from aqueous solutions. An X-ray structure analysis yielded space group


Author(s):  
S. Haussühl ◽  
J. Schreuer

AbstractLarge single crystals of optical quality of betaine hydrogen ammonium sulfate have been grown from aqueous solutions. An X-ray structure analysis yielded space group


Author(s):  
S. Haussühl ◽  
J. Schreuer

AbstractLarge single crystals of optical quality of (±)-tris(ethylenediamine)cobalt(III) nitrate have been grown from aequeous solutions. An X-ray structure analysis yielded space groupPyroelectric, dieletric, piezoelectric and elastic constants have been determined at room temperature. Additionally, we have studied the coefficients of thermal expansion and the thermoelastic constants in the range between 270 K and 350 K. The structure exhibits a nearly trigonal symmetry around the [unk]


Author(s):  
Sergey N. Volkov ◽  
Rimma S. Bubnova ◽  
Stanislav K. Filatov ◽  
Sergey V. Krivovichev

AbstractSingle crystals of novel metastable borate Ba


Author(s):  
И.В. Боднарь

Abstract FeIn_2S_3.6Se_0.4 single crystals are grown by planar crystallization of the melt (the vertical Bridgman method). The composition and crystal structure of the crystals are determined. It is established that the single crystals crystallize with the formation of the cubic spinel structure. From the transmittance spectra in the region of the fundamental absorption edge, the band gap of the single crystals is determined. Thermal expansion of the FeIn_2S_3.6Se_0.4 single crystals is studied by the dilatometric technique in the temperature range from 80 to 550 K, and the coefficients of thermal expansion are determined. From the coefficients of thermal expansion determined, the Debye temperatures and the root-mean-square (rms) dynamic displacements of atoms are calculated. It is shown that, as temperature is elevated, the Debye temperatures decrease and the rms dynamic displacements of atoms increase. Magnetic studies show that the FeIn_2S_3.6Se_0.4 single crystals are paramagnetic materials at temperatures down to 12.4 K.


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