Browse Categories
Search

SrTiO3 Substrate with Step Surface & Ti terminated (100) 10x10x0.5mm, 1 SP


In stock
Item Number: STOa101005S1StepUS

Quantity Discounts

QuantityAmount
50 to 99USD$189.05
Step STO substrate is a 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

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  sides  EPI polished by CMP tecnology 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:

     
SrLaAlO4
Shopping Cart
Your cart is empty.
Please clear the browsing history before ordering the product. Otherwise, availability and price are not guaranteed.
Mailing Lists
MTI sponsorships:
MTI Sponsors Thermoelectrics Workshop

MTI-UCSD Battery Fabrication Lab

MTI-VISTEC Cylindrical Cell  Pilot Line

MTI Sponsors the Postdoctoral Awards

Announcement:
MTI KJ Group Files Lawsuit Against Shangdong Gelon LIB Group for Copyright Infringement of MTI products and Manufacture & sale of counterfeit goods 

MTI and Celgard have successfully reached a settlement under court for the litigation on patent and trademark


Upcoming Shows:

IMAT Virtual Edition October 26 - 28

Recent Attended Shows:
TMS 2020 Feb 23 - 27 San Diego CA Booth 700

AABC Europe Jan 12 - 16 Wiesbaden Germany


Click here to see our past conferences

 

Notices
1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.