Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate
and Iron Phases at Deposited Carbon Nanotubes

D 2010

Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes

SCHNEEWEISS, O., B. DAVID, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ, M. VONDRACEK et. al.

Basic information

Original name

Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes

Authors

SCHNEEWEISS, O. (guarantor), B. DAVID, Ondřej JAŠEK (203 Czech Republic, belonging to the institution), Lenka ZAJÍČKOVÁ (203 Czech Republic, belonging to the institution), M. VONDRACEK, R. ZBORIL and M. MASLAN

Edition

MELVILLE, MOSSBAUER SPECTROSCOPY IN MATERIALS SCIENCE - 2010, p. 90-95, 6 pp. 2010

Publisher

AMER INST PHYSICS

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

21100 2.11 Other engineering and technologies

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

electronic version available online

References:

URL

Organization unit

Faculty of Science

ISBN

978-0-7354-0806-7

ISSN

DOI

http://dx.doi.org/10.1063/1.3473904

UT WoS

000281606200012

Keywords in English

Thin films; iron; SiO substrate; carbon nanotubes; Mossbauer effect

Abstract

V originále

A phase composition of 10 nm thick Fe film placed on the silicon substrate with 200 nm thick SiOx layer after annealing in vacuum and in H-2+CH4 was investigated using Conversion Electron Mossbauer spectroscopy (CEMS). CEMS spectra show that the original iron film was formed by Fe3+ phase. This phase is stable after the annealing in vacuum or in H-2+CH4 below 500 degrees C but formation of phases with Fe2+ and Fe-0 (gamma-Fe and alpha-Fe) was observed after annealing at 500 degrees C and higher temperatures. Formation of fayalite (Fe2SiO4) occurred during vacuum annealing at 700 degrees C. SEM and CEMS study of the sample with grown multiwalled carbon nanotubes shows that the dominating part of iron atoms is present in Fe3C and Fe5C2 carbide phases. Besides their stoichiometric forms, the spectrum components which can be ascribed to the amorphous Fe5-xC2+x carbides, gamma-Fe, and Fe3+ were observed.

Citovat

SCHNEEWEISS, O., B. DAVID, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ, M. VONDRACEK, R. ZBORIL and M. MASLAN. Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes. Online. In Tucek, J.; Miglierini, M. MOSSBAUER SPECTROSCOPY IN MATERIALS SCIENCE - 2010. MELVILLE: AMER INST PHYSICS, 2010, p. 90-95. ISBN 978-0-7354-0806-7. Available from: https://dx.doi.org/10.1063/1.3473904.

@inproceedings{1678117,
   author = {Schneeweiss, O. and David, B. and Jašek, Ondřej and Zajíčková, Lenka and Vondracek, M. and Zboril, R. and Maslan, M.},
   address = {MELVILLE},
   booktitle = {MOSSBAUER SPECTROSCOPY IN MATERIALS SCIENCE - 2010},
   doi = {http://dx.doi.org/10.1063/1.3473904},
   editor = {Tucek, J.; Miglierini, M.},
   keywords = {Thin films; iron; SiO substrate; carbon nanotubes; Mossbauer effect},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {MELVILLE},
   isbn = {978-0-7354-0806-7},
   pages = {90-95},
   publisher = {AMER INST PHYSICS},
   title = {Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes},
   url = {https://doi.org/10.1063/1.3473904},
   year = {2010}
}

TY  - JOUR
ID  - 1678117
AU  - Schneeweiss, O. - David, B. - Jašek, Ondřej - Zajíčková, Lenka - Vondracek, M. - Zboril, R. - Maslan, M.
PY  - 2010
TI  - Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes
PB  - AMER INST PHYSICS
CY  - MELVILLE
SN  - 9780735408067
KW  - Thin films
KW  - iron
KW  - SiO substrate
KW  - carbon nanotubes
KW  - Mossbauer effect
UR  - https://doi.org/10.1063/1.3473904
N2  - A phase composition of 10 nm thick Fe film placed on the silicon substrate with 200 nm thick SiOx layer after annealing in vacuum and in H-2+CH4 was investigated using Conversion Electron Mossbauer spectroscopy (CEMS). CEMS spectra show that the original iron film was formed by Fe3+ phase. This phase is stable after the annealing in vacuum or in H-2+CH4 below 500 degrees C but formation of phases with Fe2+ and Fe-0 (gamma-Fe and alpha-Fe) was observed after annealing at 500 degrees C and higher temperatures. Formation of fayalite (Fe2SiO4) occurred during vacuum annealing at 700 degrees C. SEM and CEMS study of the sample with grown multiwalled carbon nanotubes shows that the dominating part of iron atoms is present in Fe3C and Fe5C2 carbide phases. Besides their stoichiometric forms, the spectrum components which can be ascribed to the amorphous Fe5-xC2+x carbides, gamma-Fe, and Fe3+ were observed.
ER  -

SCHNEEWEISS, O., B. DAVID, Ondřej JAŠEK, Lenka ZAJÍČKOVÁ, M. VONDRACEK, R. ZBORIL and M. MASLAN. Mossbauer Effect Study of Iron Thin Films on Si/SiOx Substrate and Iron Phases at Deposited Carbon Nanotubes. Online. In Tucek, J.; Miglierini, M. \textit{MOSSBAUER SPECTROSCOPY IN MATERIALS SCIENCE - 2010}. MELVILLE: AMER INST PHYSICS, 2010, p.~90-95. ISBN~978-0-7354-0806-7. Available from: https://dx.doi.org/10.1063/1.3473904.

Detailed Information on Publication Record