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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.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Tunnfilmsfysik. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0003-3277-1945
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2016 (Engelska)Ingår i: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 378, s. 157-162Artikel i tidskrift (Refereegranskat) Published
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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.

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ELSEVIER SCIENCE BV , 2016. Vol. 378, s. 157-162
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Friction; Ferroelectrics; AFM; Lead-free
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Annan materialteknik
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URN: urn:nbn:se:liu:diva-129657DOI: 10.1016/j.apsusc.2016.03.110ISI: 000376819200020OAI: oai:DiVA.org:liu-129657DiVA, id: diva2:943253
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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]

Tillgänglig från: 2016-06-27 Skapad: 2016-06-23 Senast uppdaterad: 2017-11-28

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Broitman, Esteban

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