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SrLaAlO4 (100) 5x5x0.5mm, 1SP - SLAOa050505S1
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In stock
Item Number: SLAOa050505S1
Quantity Discounts
| Quantity | Amount |
| 50 or more | USD$46.55 |
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Specifications:
- Single crystal SrLaAlO4
- Size: 5mm x 5mm x 0.5mm
- Orientation: (100)
- Orientation tolerance + / - 0.5°
- Surface Roughness <10 Å
- Edge alignment available on request
- Polish: one side EPI polished
Features:
- Good lattice match with perovskite structure superconductors
- Stable structure with much less defects than SrTiO3
- Low dielectric constant suitable for microwave or high frequency application
Typical Properties
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Purity
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99.99%
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Color
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Light Brown
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Crystal Struture
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Tetragonal
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Lattice Constant
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a = b = 3.756 A C = 12.636 A
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Density
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5.92 g / cc
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Melt Point
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1650 oC
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Thermal Expansion Coeff.
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12 ppm / oC
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Dielectric Constant
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16.81 at a axis 20.02 at c axis
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Comparison of SrTiO3 - LaAlO3 - SrLaAlO3
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Properties/Crystal
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SrTiO3
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LaAlO3
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SrLaAlO4
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Structure
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Cubic
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Rhombohedral at 25 oC
Cubic at > 435 oC
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Tetragonal
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Lattice Constant
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a=3.905
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a=3.821 A
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a=b=3.756 A c= 12.636
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mismatch to YBCO (a=3.9)
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+0.12%
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-2.0%
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-3.7%
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Dielectric Constant
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~300
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~ 25
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~ 17
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Grown Method
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Vernuil
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CZ
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CZ
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Thermal expansion
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10.4 (x10-6/ oC)
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10 (x10-6/ oC)
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12 (x10-6/ oC)
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Melting point
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2080
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2080 oC
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1650 oC
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Density
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5.175 g/cm3
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6.52 g/cm3
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5.92 g/cm3
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Max. Crystal Size
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30 mm dia.
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75 mm dia
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35 mm dia
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| Crystal Quality |
Wide rocking curve due to dislocation density
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Visible twin due to phase transition around 400 oC
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Narrow rocking curve, no twins, less defects
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| Crystal Cost |
Higher
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Lower
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Medium
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