$329.00
SrTiO3 Substrate with Step Surface & Ti terminated (100) 10x10x0.5mm, 1 SP - STOa101005S1StepUS—
$329.00
The Story
Step STO substrate is an atomically smooth SrTiO3 (100) with steps one unit cell in height was obtained by treating the crystal surface with a pH-controlled NH4F-HF solution. The homoepitaxy of SrTiO3 film on the crystal surface proceeds in a perfect layer-by-layer mode as verified by reflection high-energy electron diffraction and atomic force microscopy. Ion scattering spectroscopy revealed that the TiO2 atomic plane terminated the as-treated clean surface and that the terminating atomic layer could be tuned to the SrO atomic plane by homooepitaxial growth. This technology provides a well-defined substrate surface for atomically regulated epitaxial growth of such perovskite oxide films .
For more information on Step substrate, please refer to the article at
Science 2 December 1994: Vol. 266 no. 5190 pp. 1540-1542 DOI: 10.1126/science.266.5190.1540
|
Surface of SrTiO3 substrate after Step treatment (AFM)
|
Surface of SrTiO3 substrate before Step treatment (AFM)
|
 Typical AFM picture of step STO substrate
|
Substrate Specifications
- Size: 10x10x 0.5mm +/-0.05mm
-
Orientation: 0.1º miscut from (100) ( +/- 0.1º from Y and X direction )
- Polish: One-side EPI polished by CMP technology with less sub-surface lattice damage
-
Surface Termination: TiO2 layer ( via special etching)
- Surface finish (RMS or Ra): <5A
|
|
Typical Physical Properties |
|
Crystal Structure |
Cubic, a=3.905Å |
|
Growth Method |
Vernuil |
|
Density |
5.175 g/cm3 |
|
Melt Point |
2080 oC |
|
Hardness |
6 ( Mohn) |
|
Thermal expansion |
10.4 (x10-6/ oC) |
|
Dielectric Constant |
~ 300 |
|
Loss Tangent at 10 GHz |
~5x10-4 @ 300K , ~3 x10-4 @77K |
|
Color and Appearance |
Transparent (sometimes slightly brown based on annealing condition). No twins. |
|
Chemical Stability |
Insoluble in water |
Customers Who Bought This Item Also Bought:
|
SrTiO3
|
LSAT
|
LaAlO3
|
MgO
|
Film Coaters
|
 |
 |
|
|
 |
| SrLaAlO4 |
NdCaAlO4
|
NdGaO3
|
YSZ
|
Wafer Boxes
|
 |
 |
 |
|
 |
Description
Step STO substrate is an atomically smooth SrTiO3 (100) with steps one unit cell in height was obtained by treating the crystal surface with a pH-controlled NH4F-HF solution. The homoepitaxy of SrTiO3 film on the crystal surface proceeds in a perfect layer-by-layer mode as verified by reflection high-energy electron diffraction and atomic force microscopy. Ion scattering spectroscopy revealed that the TiO2 atomic plane terminated the as-treated clean surface and that the terminating atomic layer could be tuned to the SrO atomic plane by homooepitaxial growth. This technology provides a well-defined substrate surface for atomically regulated epitaxial growth of such perovskite oxide films .
For more information on Step substrate, please refer to the article at
Science 2 December 1994: Vol. 266 no. 5190 pp. 1540-1542 DOI: 10.1126/science.266.5190.1540
|
Surface of SrTiO3 substrate after Step treatment (AFM)
|
Surface of SrTiO3 substrate before Step treatment (AFM)
|
Typical AFM picture of step STO substrate
|
Substrate Specifications
- Size: 10x10x 0.5mm +/-0.05mm
-
Orientation: 0.1º miscut from (100) ( +/- 0.1º from Y and X direction )
- Polish: One-side EPI polished by CMP technology with less sub-surface lattice damage
-
Surface Termination: TiO2 layer ( via special etching)
- Surface finish (RMS or Ra): <5A
|
|
Typical Physical Properties |
|
Crystal Structure |
Cubic, a=3.905Å |
|
Growth Method |
Vernuil |
|
Density |
5.175 g/cm3 |
|
Melt Point |
2080 oC |
|
Hardness |
6 ( Mohn) |
|
Thermal expansion |
10.4 (x10-6/ oC) |
|
Dielectric Constant |
~ 300 |
|
Loss Tangent at 10 GHz |
~5x10-4 @ 300K , ~3 x10-4 @77K |
|
Color and Appearance |
Transparent (sometimes slightly brown based on annealing condition). No twins. |
|
Chemical Stability |
Insoluble in water |
Customers Who Bought This Item Also Bought:
|
SrTiO3
|
LSAT
|
LaAlO3
|
MgO
|
Film Coaters
|
|
|
|
|
|
| SrLaAlO4 |
NdCaAlO4
|
NdGaO3
|
YSZ
|
Wafer Boxes
|
|
|
|
|
|
