Lanthanu m strontium aluminate (LaSrAlO4)

Strontium aluminate lanthanu m crystal has no twinning and phase transition from melting point to low temperature. It has the same structure as High-temperature superconductivity YBCO. Compared with other substrates, the<001>plane exhibits moderate lattice mismatch with YBCO<001>. (2.5-3.5%). Meanwhile, the thermal expansion coefficient of this crystal is lower than that of other perovskite crystals, which can deposit thin films at lower temperatures, improve lattice mismatch, and reduce stress.

Dihedral Technology(DHD) Co., Ltd. manufacture and processing/provide multiple specifications and high quality LaSrAlO4 crystal,targets,materials.

Applications

High temperature superconducting YBCO and others.

Features

From melting point to low temperature, there are no twins or phase transitions.
It has the same structure as the high-temperature superconductor YBCO.
There is a moderate lattice mismatch between the<001>plane and YBCO<001>. (2.5-3.5%).
This type of crystal has a lower thermal expansion coefficient than other perovskite crystals, and can deposit thin films at lower temperatures to improve lattice mismatch and reduce stress.

Crystal Structure	Tetragonal
Growth Method	Czochralski
Lattice Constant	a=3.756Å c=12.63 Å
Melting Point	1650℃
Density	5.92（g/cm³）
Mohs Hardness	6-6.5（mohs）
Dielectric Coefficient	ε=16.8
Dimension	10x3mm，10x5mm，10x10mm，15x15mm，20x15mm，20x20mm
	Ф15,Ф20，Ф1″，Ф2″,Ф2.6″
Thickness	0.5mm，1.0mm
Polishing	One side or two sides
Orientation	＜001＞
Crystal Plane Orientation Accuracy	±0.5°
Edge Orientation Accuracy	2°（Special requirements can reach within 1°）
Bevel Wafer	According to specific requirements, wafers with edge-oriented crystal planes inclined at a specific angle (inclination angle 1°-45°) can be processed.
Surface Roughness	Ra≤5Å（5×5µm）
Package	Class 100 clean bag, Class 1000 super clean room

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Lanthanu m strontium aluminate (LaSrAlO4)

Applications

Features

Properties