High surface stability of magnetite on bi-layer Fe3O4/Fe/MgO(0 0 1) films under 1 MeV Kr ion irradiation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F17%3A43892910" target="_blank" >RIV/44555601:13440/17:43892910 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/article/10.1088/2043-6254/aa84e2/pdf" target="_blank" >http://iopscience.iop.org/article/10.1088/2043-6254/aa84e2/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2043-6254/aa84e2" target="_blank" >10.1088/2043-6254/aa84e2</a>

Result language

angličtina

Original language name

High surface stability of magnetite on bi-layer Fe3O4/Fe/MgO(0 0 1) films under 1 MeV Kr ion irradiation

Original language description

We investigate the stability of the bi-layer Fe3O4/Fe(0 0 1) films grown epitaxially on MgO(0 0 1) substrates with the layer thickness in the range of 25-100 nm upon 1 MeV Kr+ ion irradiation. The layer structure and layer composition of the films before and after ion irradiation were studied by XRR, RBS and RBS-C techniques. The interdiffusion and intermixing was analyzed. No visible change in the RBS spectra was observed upon irradiation with ion fluence below 1015 Kr cmMINUS SIGN 2. The bi-layer structure and the stoichiometric Fe3O4 layer on the surface were well preserved after Kr+ ion irradiation at low damage levels, although the strong intermixing implied a large interfacial (FexOy) and (Fe, Mg)Oy layer respective at Fe3O4-Fe and Fe-MgO interface. The high ion fluence of 3.8 x 1016 Kr cmMINUS SIGN 2 has induced a complete oxidization of the buffer Fe layer. Under such Kr fluence, the stoichiometry of the Fe3O4 surface layer was still preserved indicating its high stability. The entire film contains FexOy -type composition at ion fluence large than 5.0 x 1016 Kr cmMINUS SIGN 2.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

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)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advances in Natural Sciences: Nanoscience and Nanotechnology

ISSN

2043-6254

e-ISSN

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Volume of the periodical

8

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

"nestrankovano"

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85039042925