Thermal expansion coefficients of rare earth metal disilicides and their influence on the growth of disilicide nanowires

2005 ◽  
Vol 82 (1) ◽  
pp. 39-42 ◽  
Author(s):  
J.J. Yang ◽  
C.J. Rawn ◽  
C.-X. Ji ◽  
Y.A. Chang ◽  
Y. Chen ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Thermal Expansion Coefficients ◽  
Expansion Coefficients

Experimental analysis of overall thermal properties of Nd:La2CaB10O19crystals

2012 ◽  
Vol 45 (6) ◽  
pp. 1182-1186 ◽  
Author(s):  
Jianxiu Zhang ◽  
Yang Wu ◽  
Guochun Zhang ◽  
Yin Li ◽  
Yicheng Wu
Keyword(s):  
Thermal Expansion ◽  
Rare Earth ◽  
Frequency Conversion ◽  
Frequency Doubling ◽  
Nonlinear Frequency ◽  
Rare Earth Ion ◽  
Nonlinear Frequency Conversion ◽  
Thermal Expansion Coefficients ◽  
Expansion Coefficients ◽  
Measured Specific Heat

Pure or rare-earth-ion-doped La2CaB10O19(LCB) is a promising optical material for nonlinear frequency conversion, laser and self-frequency doubling applications. In this paper, the thermophysical properties of Nd3+-doped LCB (Nd:LCB) crystals were measured and compared with those of pure and of Yb3+- and Er3+-doped LCB, as well as other borate nonlinear optical crystals. The melting points of rare-earth-doped LCB crystals are lower than that of pure LCB. Thermal expansion coefficients along thea,b,c,c*,a*, 〈110〉 and 〈110〉* directions have been measured, and the principal expansion coefficients were calculated to be 1.85 × 10−6, 4.13 × 10−6and 8.79 × 10−6 K−1. The measured specific heat of Nd:LCB is lower than that of pure LCB, resulting in a larger internal temperature gradient under irradiation by a pulsed laser beam. The measured thermal expansion anisotropy of Nd:LCB is stronger than that of pure LCB. The thermal conductivities of Nd:LCB along thecandc* directions are smaller than those along other crystallographic directions.

Thermal expansion of the new perovskite substrates DyScO3 and GdScO3

2005 ◽  
Vol 20 (4) ◽  
pp. 952-958 ◽  
Author(s):  
M.D. Biegalski ◽  
J.H. Haeni ◽  
S. Trolier-McKinstry ◽  
D.G. Schlom ◽  
C.D. Brandle ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Expansion ◽  
Rare Earth ◽  
Lattice Spacing ◽  
Epitaxial Thin Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thermal Expansion Coefficients ◽  
Expansion Coefficients ◽  
Increasing Temperature

The thermal expansion coefficients of DyScO3 and GdScO3 were determined from298 to 1273 K using x-ray diffraction. The average thermal expansion coefficients of DyScO3 and GdScO3 were 8.4 and 10.9 ppm/K, respectively. No phase transitions were detected over this range, though the orthorhombicity decreased with increasing temperature. These thermal expansion coefficients are similar to other oxide perovskites (e.g., BaTiO3 or SrTiO3), making these rare-earth scandates promising substrates for the growth of epitaxial thin films of many oxide perovskites that have similar lattice spacing and thermal expansion coefficients.

Thermal expansion of some RET4B4type rare earth metal borides

1984 ◽  
Vol 40 (a1) ◽  
pp. C148-C148
Author(s):  
K. Damodar Reddy ◽  
B. Appa Rao ◽  
K. Satyanarayana Murthy ◽  
L. Iyengar
Keyword(s):  
Thermal Expansion ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Metal Borides

The magnetoelastic contribution to thermal expansion of rare-earth metal scheelites RLiF4 (R = Tb-Yb)

2003 ◽  
Vol 97 (2) ◽  
pp. 279-289 ◽  
Author(s):  
Z. A. Kazei ◽  
O. A. Shishkina ◽  
R. I. Chanieva ◽  
R. Yu. Abdulsabirov ◽  
S. L. Korableva
Keyword(s):  
Thermal Expansion ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal
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