Strontium Titanate Single Crystal Substrate

Strontium Titanate Single Crystal Substrate
Product Strontium Titanate (SrTiO3) Single Crystal Substrate
Part Number SB13
Density 5.122 g/cm3
Synonyms Single Crystal SrTiO3 Substrate, SrTiO3 Substrate

Strontium titanate (SrTiO3) is one of the most widely used high temperature superconducting single crystal substrates. It has good lattice matching with YBaCuO and other high temperature superconductors, no twin structure, excellent physical and mechanical properties. Many kinds of high temperature superconducting thin films (Y-system, BI system, La system, etc.) made by many kinds of film making techniques (such as magnetic sputtering, pulsed laser deposition, laser molecular beam epitaxy, etc.) can obtain the indexes of TCO ≥90°K, JCO ≥106 A/cm2, etc.

SrTiO3 is also the preferred single crystal material for high temperature superconductive junction technology (using double crystal substrate or step-like substrate) and substrate step-by-step (beveling and heat treatment at a specific angle). Get a Quote Now! For other semiconductor materials, please check our Semiconductor Materials catalog page.

Typical application:

SrTiO3 single crystal has a good lattice structure of perovskite structure material. For the epitaxial growth of HTS and most oxide films, it is an excellent substrate material, which has been widely used in the research of high-temperature superconducting films, and also widely used in special optical windows and high-quality sputtering targets.

Typical Specification

Crystal structure Cubic
Growth method Flame method
Unit cell constant a = 3.905 Å
Dielectric constants ε = 5.20
Tangent loss ~5×10-4 (300k) ~ 3×10-4 (77k)
Size 10 × 3, 10 × 5, 10 × 10, 15 × 15, 20 × 15 mm
Special size and orientation are available upon request
Thickness 0.5 mm, 1.0 mm
Size tolerances ±0.1 mm
Polishing Single or double
Redirection the edge: 2° (1° available)
Crystal orientation <100>, <110>, <111> ±0.5º

Order Information

Inquiries and orders should include the following information:

  1. Quantity
  2. Dimensions
  3. Crystal orientation
  4. Polishing

Packing and Storage

Standard Packing: class 100 clean sealed bags. Special package is available on request.

Physical Properties – Strontium Titanate Single Crystal Substrate

Form Solid
Hardness 6-6.5 (mohs)
Melting Point 2080°C
Thermal expansion (/°C) 9.4×10-6
Chemical stability Insoluble in water