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YAP
- Name: Yttrium Aluminium Perovskite Crystal Substrate, YAlO3
- Lattice parameter: = 5.330 Å, b = 5.180 Å, and c = 7.375 Å with a pseudo-cubic lattice constant ~ 3.72 Å (Geller et al. (DOI: 10.1107/S0365110X56001571))
- Crystal Structure: Orthorombic, Perovskite
- YAlO3 is a wide band gap (∼7.9 eV)
- Commonly used as substrate for: High temperature superconductors, perovskites, II-V nitrides, BiFeO3, LaO, YBCO, WO3, EuO, TbMnO3, LaTiO3, CaIrO3, EuBa2Cu3Oy
- Surface Roughness: Ra <0.2nm (measured 5x5 µm AFM scan)
- Good temperature and chemical stability
- Available Dimensions: 5x5 mm to 20x20 mm and customized
- Available in 010, 100, 001, 110 and 101
- Single or double side polished
- Next day delivery
Yttrium aluminium perovskite (YAlO3, aka YAP) are commonly used and studied in lasing applications in thin film and single crystal form typically with the addition of rare earth and transition metal ions. As a substrate, YAP have stabilize many thin films including high temperature superconductors.
With its orthorhombic structure, the various orientations give lots of different options for lattice matches which many other substrates simply can’t, so you often see it being used with rare earths and large lattice parameter films and dopants.
| LINEAR FORMULA: | YAlO3 |
| PURITY: | 99.99% |
| CRYSTAL ORIENTATION: | 100, 110, 111, 001 and 101 |
| GROWTH METHOD: | |
| CRYSTAL STRUCTURE: | Orthorhombic |
| LATTICE CONSTANT: | a=5.3286(4) b=7.3706(5) c=5.1796(3) |
| MELTING POINT (°C): | 1870 |
| THERMAL EXPANSION COEFFICIENT (/K): | (2~10) x 10-6 //k |
| HARDNESS (Mohs): | 8.5 |
| MOLAR MASS (G/MOL): | |
| DENSITY (g/cm3): | 4.88 |
| REFRACTIVE INDEX: | 1.82 |
| DIELECTRIC CONSTANTS: | |
| CHEMICAL STABILITY: | Insoluble in water |
| SIZES: | 5x5mm & 10x10 mm (or custom size) |
| TYPICAL THICKNESS: | 0.5mm (or custom thickness) |
| SIZE TOLERANCES: | +/- 0.1mm |
| THICKNESS TOLERANCES: | +/- 0.015mm |
| ORIENTATION PRECISION: | +/-0.5 degree |
| POLISHING OPTIONS: | SINGLE SIDED (1SP) OR BOTH SIDES POLISHED (2SP) |
| ROUGHNESS RA: | <0.5nm |
coming soon.
How long does it take for you to ship out after purchase? In-Stock Substrates are held in our US warehouse and we aim to have substrates shipped out within 24-48 hours.
Pre-Order Substrates are manufactured and delivered in 3-4 weeks.
How much is shipping? All substrates are shipped free of charge within the USA. This shipping takes approx 4-5 days to arrive once shipped.
Expedited delivery? Faster delivery options are available. Below are some indicative prices. To get the cost for your package and location, just add your address at check out and select the shipping option you want to check.
- USA FedEx 2 day delivery: typically $25 USD
- USA FedEx Overnight Delivery: typically $65USD.
- Canada FedEx International Priority: typically $25 USD.
Europe and UK Delivery? Approx cost for delivery is 50 Euros. Shipping costs will be calculated at check-out based on your address or please complete the quote form and we will email you the price. VAT and customs charges are payable by the buyer.
Rest of Worldwide Shipping? Shipping costs to the rest of the World, will be calculated at check-out. Please be aware that delivery times and tracking information vary for each country. Customs charges may apply if shipping outside of the US and are payable by the buyer.
How can I place an order? The quickest way to get your item is to buy through the website – the order is automatically picked up in our system and in stock items ships out asap.
We can accept purchase orders for established universities and companies and are happy to work with your institutes payment systems if required (although please note we are a small company so would prefer pre-payment via our website for small or one-off orders).
We have flexible payment options and can give you a quotation in any of the following currencies (USD $, CAD $, GBP £, EUROS € AUD $).
You can download a copy of our W8 form here.
What payment options do you provide? Crystal Substrates accepts the following payment methods:
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- Sorry we do not accept payment with check.
Do you send substrates to Europe? Yes, we have many long term customers buy from all over Europe including France, UK, Germany, Italy, Norway, Netherlands. Please buy through the website or get in touch if you need a specific substrate.
We believe we have the cheapest and best quality products in the USA. If you find another US company with a lesser price (including delivery) we would be happy to price match.
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