Study and characterization of SrTiO3 surface
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F18%3A43955462" target="_blank" >RIV/49777513:23640/18:43955462 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.5048853" target="_blank" >http://dx.doi.org/10.1063/1.5048853</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5048853" target="_blank" >10.1063/1.5048853</a>
Alternative languages
Result language
angličtina
Original language name
Study and characterization of SrTiO3 surface
Original language description
Two-dimensional electron gas (2DEG) at an oxides interfaces and surfaces has attracted large attention in physics and research due to its unique electronic properties and possible application in optoelectronic and nano-electronic. The origin of 2DEG at oxide interfaces has been awarded to well known “polar catastrophe” mechanism. On the other hand, recently 2DEG has been also found on clean SrTiO3 (001) surface due to the creation of oxygen vacancies. However, these 2DEG systems have been until now found mostly on an atomically perfect crystalline samples usually grown by pulse laser deposition or molecular beam epitaxy e.g. samples which are difficult to be prepared and require specific experimental conditions. Here, we report on the fabrication of SrTiO3 thin films deposited by magnetron sputtering which is suitable for mass-production of samples adapted for nano-electronic applications. The characterization of their structural and electronic properties were studied and compared to those of SrTiO3 single crystal. XRD patterns and SEM micrography showed that the deposited films are amorphous and their structure changed to polycrystalline after heating at 900_C. Photoemission spectroscopy (XPS and UPS) were used to study the electronic properties of the films and crystal. In both, we observed the 2DEG system at Fermi level and the formation of Ti3+ state when the surface was heated at 900_C.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/EF15_003%2F0000358" target="_blank" >EF15_003/0000358: Computational and Experimental Design of Advanced Materials with New Functionalities</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
AIP Conference Proceedings 2018
ISBN
978-0-7354-1712-0
ISSN
0094-243X
e-ISSN
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Number of pages
5
Pages from-to
"NESTRÁNKOVÁNO"
Publisher name
American Institute of Physics Inc.
Place of publication
Strbske Pleso
Event location
Strbske Pleso
Event date
Jul 20, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000443464900001