Thin film substrates sales@dmphotonics.com

Thin film substrates sales@dmphotonics.com

Lanthanum Strontium Aluminum Tantalum Oxide ( LSAT ) crystals sales@dmphotonics.com
LSAT and LaAlO3 crystals sales@dmphotonics.com

LSAT (100): (LaAlO3)0.29(SrAl0.5Ta0.5O3)0.71
Orientation: (100)
Low miscut (less than 0.2 deg.)
10mm x 10mm x 0.5mm

LaAlO3 LaAlO3 (100)
Low miscut (less than 0.2 deg.)
10mm x 10mm x 0.5mm

LaAlO3 single crystal provides a good lattice match to many materials with perovskite structure. It is an excellent substrate for epitaxial growth of high Tc superconductors, magnetic and ferro-electric thin films. The dielectric properties of LaAlO3 crystal are well suitable for low loss microwave and dielectric resonance applications. We can supply as-grown boules, as-cut blanks and epi-polished substrates up to 3″ diameter.

Lanthanum Strontium Aluminum Tantalum Oxide ( LSAT )
Crystal properties
Crystal growth method Czochralski
Lanthanum Strontium Aluminum Tantalum Oxide LSAT
Crystal growth orientation (100) (110) (111)
Crystal structure cubic m3m Mixed Peroviskite
Approximately Molecular Form (La0.3Sr0.7) (Al0.65Ta0.35)O3
Cell parameter a = 7.737 Å
Melting point 2113° K
Density 6.64 g / cm3
Specific Heat 5.1 W / m·k
Thermal Expansion (10-6k-1) 8.2 (295° K) 11 (973° K)
Dielectric Constant (εr) 22.7 (291° K / 1 MHz) 21.7 (90° K / 10 kHz)
Dielectric loss (tgδ) 7.47 x 10-5 (90° K / 10 kHz)
Hardness (Mohs) 6.5

Featured Research:
Research

CMD is engaged in various areas of materials research, with particular focus on energy-related applications, polymers, porous materials, and nanomaterials. However, our broad base of synthesis, formulation and characterization instrumentation is of general applicability, and projects fields as diverse as catalysts, lubricants, home and personal care, biomedical devices and inorganic coatings are also served.

The scientific team based at CMD work closely with the Cooper Group, other academic groups within the Department of Chemistry, and with researchers from external organizations. Our involvement in other initiatives, such as the NWDA-funded Knowledge Centre in Materials Chemistry (KCMC), facilitates interaction with other UK institutions.

The scope of research conducted at CMD is broad, but can be grouped into four generic areas:

HT method development: the development of new or improved techniques to enhance expertise and capability in the field of HT research.

New materials discovery: the use of automated synthesis and characterization to discover wholly new materials with step-changes in performance.

Material optimization: “scaling-out” the development of existing products to improve performance, reduce costs or strengthen IP claims.

Property / behavior investigation: automated or parallel experimentation to facilitate detailed mechanistic investigations, kinetic studies, reproducibility studies, etc.