Essential details
MOQ:10
Shipping:Air freight, land freight, sea freight
Product Code:CRY-10
Product Introduction
Product name: Neodymium Gallate (NdGaO3) Substrate
Neodymium gallate is an orthorhombic perovskite substrate used where the film has to be grown on something very close in lattice. Against YBCO the mismatch is about 0.27%, one of the smallest of any commercial substrate, and there is no structural phase transition to spoil the surface on the way down from growth temperature.
Key properties:
The small lattice mismatch and the absence of a phase transition allow high-quality epitaxial films of YBCO and of magnetic materials. Dielectric behaviour is good, with a high dielectric constant and low loss, and thermal stability is sufficient to hold performance at high temperature. Crystal quality is high, with a complete structure and no obvious crystallographic defects, which carries over into electronic and optical applications. The wide band gap gives useful optical transparency in the ultraviolet.
The small lattice mismatch and the absence of a phase transition allow high-quality epitaxial films of YBCO and of magnetic materials. Dielectric behaviour is good, with a high dielectric constant and low loss, and thermal stability is sufficient to hold performance at high temperature. Crystal quality is high, with a complete structure and no obvious crystallographic defects, which carries over into electronic and optical applications. The wide band gap gives useful optical transparency in the ultraviolet.
Typical use:
substrates for YBCO and other high-temperature superconducting films, epitaxial films of magnetic materials, and films with complex perovskite structures.
Fabrication and options:
Standard sizes 10×3 to 20×20 mm, thickness 0.5 mm and 1.0 mm, orientation <100>, <110> or <111>, single or double side polished to Ra ≤ 5 Å, crystal face orientation accuracy ±0.5°, edge orientation 2° or down to 1° on request. Slab wafers with the plane tilted at 1° to 45° can be processed to requirement. Packed in a Class 100 clean bag inside a Class 1000 clean room.
Standard sizes 10×3 to 20×20 mm, thickness 0.5 mm and 1.0 mm, orientation <100>, <110> or <111>, single or double side polished to Ra ≤ 5 Å, crystal face orientation accuracy ±0.5°, edge orientation 2° or down to 1° on request. Slab wafers with the plane tilted at 1° to 45° can be processed to requirement. Packed in a Class 100 clean bag inside a Class 1000 clean room.
Ordering:
Minimum order 10 pcs. Send the film material and the orientation; tilted wafers are quoted from the drawing.
Minimum order 10 pcs. Send the film material and the orientation; tilted wafers are quoted from the drawing.
Product Parameter：
Material | Neodymium gallate, NdGaO3 single crystal
Crystal structure | Orthorhombic
Lattice parameters | a = 5.43 Å, b = 5.50 Å, c = 7.71 Å
Melting point | 1600 °C
Density | 7.57 g/cm3
Dielectric constant | 25
Growth method | Tirala method
Misfit with YBCO | about 0.27%
Size | 10×3, 10×5, 10×10, 15×15, 20×15, 20×20 mm
Thickness | 0.5 mm, 1.0 mm
Polishing | Single side or double side
Orientation | <100>, <110>, <111>
Crystal face orientation accuracy | ±0.5°; edge orientation 2°, or down to 1° on special requirement
Slab crystal | Plane tilted at 1° to 45° on request
Surface roughness | Ra ≤ 5 Å over 5×5 µm
Packing | Class 100 clean bag, Class 1000 clean room
Minimum order | 10 pcs
Crystal structure | Orthorhombic
Lattice parameters | a = 5.43 Å, b = 5.50 Å, c = 7.71 Å
Melting point | 1600 °C
Density | 7.57 g/cm3
Dielectric constant | 25
Growth method | Tirala method
Misfit with YBCO | about 0.27%
Size | 10×3, 10×5, 10×10, 15×15, 20×15, 20×20 mm
Thickness | 0.5 mm, 1.0 mm
Polishing | Single side or double side
Orientation | <100>, <110>, <111>
Crystal face orientation accuracy | ±0.5°; edge orientation 2°, or down to 1° on special requirement
Slab crystal | Plane tilted at 1° to 45° on request
Surface roughness | Ra ≤ 5 Å over 5×5 µm
Packing | Class 100 clean bag, Class 1000 clean room
Minimum order | 10 pcs
