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Nanofrictional behavior of amorphous, polycrystalline and textured Y-Cr-O films
University of Nacl Autonoma Mexico, Mexico.
University of Nacl Autonoma Mexico, Mexico.
University of Nacl Autonoma Mexico, Mexico.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-3277-1945
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2016 (English)In: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 378, 157-162 p.Article in journal (Refereed) PublishedText
Abstract [en]

Differences in friction coefficients (mu) of ferroelectric YCrO3, textured and polycrystalline films, and non-ferroelectric Y-Cr-O films are analyzed. The friction coefficient was evaluated by atomic force microscopy using a simple quantitative procedure where the dependence of friction force with the applied load is obtained in only one topographical image. A simple code was developed with the MATLAB (R) software to analyze the experimental data. The code includes a correction of the hysteresis in the forward and backward scanning directions. The quantification of load exerted on the sample surface was obtained by finite element analysis of the AFM cantilever starting from its experimental dynamic information. The results show that the ferroelectric YCrO3 film deposited on a Pt(150 nm)/TiO2(30 nm)/SiO2/Si (100) substrate is polycrystalline and has a lower friction coefficient than the deposited on SrTiO3 (110), which is highly textured. From a viewpoint of industrial application in ferroelectric memories, where the writing process is electrical or mechanically achieved by sliding AFM tips on the sample, polycrystalline YCrO3 films seem to be the best candidates due to their lower mu, (C) 2016 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2016. Vol. 378, 157-162 p.
Keyword [en]
Friction; Ferroelectrics; AFM; Lead-free
National Category
Other Materials Engineering
URN: urn:nbn:se:liu:diva-129657DOI: 10.1016/j.apsusc.2016.03.110ISI: 000376819200020OAI: diva2:943253

Funding Agencies|PAPIIT-UNAM [IN109016, IN103213, IN105414]; CONACyT [174391, 166286]; DGAPA-UNAM; CONACYT; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009-00971]

Available from: 2016-06-27 Created: 2016-06-23 Last updated: 2016-07-06

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Broitman, Esteban
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