Analyzing the fractal feature of nickel thin films surfaces modified by low energy nitrogen ion

Summary Fractal concepts are used to explore how different energies (10, 20 and 50 keV) and fluence of 5 × 1017 N+ cm−2 affect the morphology of nickel thin film. The nickel thin film with thickness of 100 nm is prepared by electron beam evaporation technique at room temperature on stainless steel (...

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Published inVakuum in Forschung und Praxis : Zeitschrift für Vakuumtechnologie, Oberflèachen und Dünne Schichten Vol. 31; no. 1; pp. 30 - 35
Main Authors Ţălu, Ştefan, Yadav, Ram Pratap, Arman, Ali, Korpi, Alireza Grayeli, Sobola, Dinara, Ţălu, Mihai, Rezaee, Sahare, Achour, Amine, Jurečka, Stanislav, Mardani, Mohsen
Format Journal Article
LanguageEnglish
Published 01.02.2019
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Summary:Summary Fractal concepts are used to explore how different energies (10, 20 and 50 keV) and fluence of 5 × 1017 N+ cm−2 affect the morphology of nickel thin film. The nickel thin film with thickness of 100 nm is prepared by electron beam evaporation technique at room temperature on stainless steel (AISI 316) substrates. The nanoscale three‐dimensional (3‐D) surface micro‐morphologies are investigated by atomic force microscopy (AFM). Interface width is used to describe the surface height fluctuations. The autocorrelation function with height‐height correlation function give the quantitative data about the morphology of surface. The value of roughness exponent and fractal dimension is computed by height‐height correlation function. Fractal measure is an important analysis which provides fundamental insights into the texture characteristics and a direct way of testing their functional role. Zusammenfassung Analyse der fraktalen Eigenschaften dünner, mit niederenergetischen Stickstoffionen modifizierter Nickelschichten Fraktale Konzepte werden verwendet, um zu untersuchen, wie sich die Morphologie dünner Nickelschichten unter Beschuss mit Stickstoffionen verschiedener Energien (10, 20 und 50 keV) und konstanter Flussdichte (5 × 1017 cm−2) verändert. Die Schichten wurden mit einer Dicke von 100 nm durch Elektronenstrahlverdampfung bei Raumtemperatur auf Substraten aus Edelstahl (AISI 316) abgeschieden und die nanoskaligen dreidimensionalen (3‐D) Oberflächenmorphologien mittels Rasterkraftmikroskopie (AFM) untersucht. Die Ergebnisse gewähren Einblicke in die Oberflächenbeschaffenheit dünner Schichten und bieten eine direkte Möglichkeit, ihre Funktionsfähigkeit abzuschätzen.
Bibliography:Physics and Accelerators Research School, Nuclear Sciences and Technology Research Institute, Tehran, Iran.
Prof. Dr.‐Ing. Mihai Ţălu
University of Craiova, Faculty of Mechanics, Department of Applied Mechanics and Civil Engineering, 107 Calea Bucureşti St., 200512 Craiova, Dolj county, Romania.
Technical University of Cluj‐Napoca, The Directorate of Research, Development and Innovation Management (DMCDI), 15 Constantin Daicoviciu St., Cluj‐Napoca, 400020, Cluj county, Romania.
Dr. Ali Arman
Brno University of Technology, Faculty of Electrical Engineering and Communication, Physics Department, Technická 8, 616 00 Brno, Czech Republic
Prof. Dr.‐Eng Ştefan Ţălu
Dr. Dinara Sobola
Dr. Amine Achour
Dr. Sahare Rezaee
University of Namur, Research Centre in Physics of Matter and Radiation (PMR), LISE Laboratory, B‐5000 Namur, Belgium.
Dr. Ram Pratap Yadav
Department of Physics, Deen Dayal Upadhyay Government Post Graduate College, Saidabad, Allahabad – 221508, India
Dr. Alireza Grayeli Korpi
Dr. Stanislav Jurečka
Vacuum Technology Research Group, ACECR, Sharif University Branch, Tehran, Iran
saharrezaee593@iauksh.ac.ir
University of Žilina, Faculty of Electrical Engineering, Institute of AurelStodola, Nálepku 1390, 031 01 LiptovskýMikuláš, Slovakia.
Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
Dr. Mohsen Mardani
ISSN:0947-076X
1522-2454
DOI:10.1002/vipr.201900703