We are a leading manufacturer and supplier of research materials
Please request your non-binding offer. You can use our crystal designer or our inquiry form. |
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Single-crystal substrates are characterized by the absence of grain boundaries, a consistently ordered crystal structure and high purity. They are therefore predestined for use as a single crystal for investigating fundamental effects or as a substrate for the deposition of thin layers. The quality of the crystal structure and the best possible formation of atomically smooth terraces on the surfaces are essential for all applications. |
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The standard orientations are (111), (110), and (100) for cubic substrates and (0001), (1010) and (1120) for hexagonal crystals. We are also happy to offer other orientations on REQUEST. The standard accuracy of the orientation of substrate surfaces is < 0.5°. On request, an orientation accuracy of <0.1° is also possible. We are also happy to carry out a one-sided or two-sided polish with EPI quality to ensure a coating with good adhesion. |
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The typical thickness for substrates is 0.5 - 1.0 mm with dimensions of 5 x 5 mm to 10 x 10 mm or Ø 5 - 10 mm diameter for round substrates. | ![]() |
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Besides our single crystal substrates we also offer STO on Si substrates. These consist of a 4nm thick SrTiO3 layer epitaxially grown on top of a (001) oriented and 725μm thick silicon substrate. | ![]() |
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Below are some examples of the single crystal substrates offered by MaTecK. If you have additional or different requirements, please send us an INQUIRY. |
Crystal | Structure | M.P. [°C] | Dielectric constant | Growth Technique | Info |
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Al2O3 Sapphire |
Hexag.
a=4.77Å
c=13.04Å
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2040 |
9.0/11.5
parallel/perpendicular
C-axis
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CZ | ? |
LaAlO3 | Rhombo a=3.790Å c=13.11Å |
2100 | 24.5 | CZ ø2" |
? |
Th: LaAlO3 |
Cubic a=7.57Å |
2080 | 24.0 | CZ ø30mm |
? |
MgO | Cubic | 2800 | 10 | ? | ? |
NdCaAlO4 | Tetrag. a=3.685Å c=12.12Å |
1850 | 19.5 | CZ ø30mm |
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NdGaO3 | Orthor. a=5.43Å b=5.50Å c=7.71Å |
1600 | 25 | CZ ø2" |
? |
SrLaAlO4 | Tetrag. a=3.756Å c=12.63Å |
1650 | 16.8 | CZ ø20mm |
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SrTiO3 | Cubic a=3.90Å |
2080 | 300 | Verneuil ø20mm |
? |
YAlO3 | Orthog. a=5.176Å b=5.307Å c=7.355Å |
1870 | 16`20 | CZ ø30mm |
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YSZ | Cubic a=5.41Å |
~2500 | 27 | Flux | ? |
Material | SrTiO3 | MgO | Al2O3 | YSZ | Nb:SrTiO3 | |||||||||||||||||||||
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Dimensions (mm) | 10 x 10 x 0.5 | 10 x 10 x 0.5 | 10 x 10 x 0.5 | 10 x 10 x 0.5 | 10 x 10 x 0.5 | |||||||||||||||||||||
Surface Orientation | (100) ± 1° | (100) ± 1° | (1012) ± 1° | (100) ± 1° | (100) ± 1° | |||||||||||||||||||||
Surface Finish | one side polished | |||||||||||||||||||||||||
Junction Angle | 24° ± 1° 36.8° ± 1° |
24° ± 1° | 24° ± 1° | 24° ± 1° 36.8° ± 1° |
24° ± 1° 36.8° ± 1° |
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Flatness | l/4 | l/4 | l/2 | l/4 | l/4 | |||||||||||||||||||||
Surface Roughness | Ra 10Å, Rmax 30Å |
Ra 10Å, Rmax 50Å |
Ra 10Å, Rmax 50Å |
Ra 10Å, Rmax 30Å |
Ra 10Å, Rmax 30Å |
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Crystal Structure | cubic | cubic | hexagonal | cubic | cubic | |||||||||||||||||||||
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Phase Transition | tetragonal< 110K |
tetragonal< 110K |
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Dielectric Constant (e) | 310 | 10 | 9 | 27 | 310 | |||||||||||||||||||||
Coefficient of Expansion (10-6/°C) | 11.1 | 14.2 | 7.5 | 10.3 | 11.1 | |||||||||||||||||||||
Melting Point (°C) | 2080 | 2800 | 2030 | 2500 | 2080 |