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Neodymium Gallate - NdGaO3 (NGO)
MATERIAL CHARACTERISTICS
- Excellent lattice
matches to the typical HTSC composition.
- Low dielectric constant and low
dielectric loss tangent, which makes it atractive
for microwave
applications.
- Good thermal properties.
- No destructive phase
transformations.
APPLICATIONS
As substrates for
high-temperature superconductors.
TECHNICAL DATA
Crystal growth method |
Czochralski |
Crystal growth orientation |
<100> ; <110> ; <001> |
Maximum wafer diameter |
2 inches |
Standard sizes |
max. diameter 2 inches |
Standard thickness |
0.5 mm ~ 1 mm |
Surface quality |
one- or both side epipolished |
CRYSTALLOGRAPHIC
PROPERTIES |
Structural type |
Distorted Perovskite |
Crystallographic structure |
orthorhombic to > 1000°C
Second order phase
transformation at 950°C |
Lattice constant |
a = 0.5426 nm
b = 0.5496 nm
c = 0.7707
nm |
PHYSICAL
PROPERTIES |
Density |
7.56 g/cm3 |
Melting point |
1750°C |
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single crystal substrate 
