Epitaxial stabilization of single-crystal multiferroic ycro3 thin films

Yogesh Sharma; Elizabeth Skoropata; Binod Paudel; Kyeong Tae Kang; Dmitry Yarotski; T. Zac Ward; Aiping Chen

doi:10.3390/nano10102085

Epitaxial stabilization of single-crystal multiferroic ycro₃ thin films

Yogesh Sharma, Elizabeth Skoropata, Binod Paudel, Kyeong Tae Kang, Dmitry Yarotski, T. Zac Ward, Aiping Chen

Quantum Heterostructures

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We report on the growth of stoichiometric, single-crystal YCrO₃ epitaxial thin films on (001) SrTiO₃ substrates using pulsed laser deposition. X-ray diffraction and atomic force microscopy reveal that the films grew in a layer-by-layer fashion with excellent crystallinity and atomically smooth surfaces. Magnetization measurements demonstrate that the material is ferromagnetic below 144 K. The temperature dependence of dielectric permittivity shows a characteristic relaxor-ferroelectric behavior at T_C = 375–408 K. A dielectric anomaly at the magnetic transition temperature indicates a close correlation between magnetic and electric order parameters in these multiferroic YCrO₃ films. These findings provide guidance to synthesize rare-earth, chromite-based multifunctional heterostructures and build a foundation for future studies on the understanding of magnetoelectric effects in similar material systems.

Original language	English
Article number	2085
Pages (from-to)	1-8
Number of pages	8
Journal	Nanomaterials
Volume	10
Issue number	10
DOIs	https://doi.org/10.3390/nano10102085
State	Published - Oct 2020

Funding

samples and analyzed the properties. E.S. and T.Z.W. performed magnetic and spectroscopic measurements. Y.S. wrote the manuscript and all authors including Y.S., E.S., B.P., K.T.K., D.Y., T.Z.W., and A.C. discussed the results Yan.Sd. wcormotme ethnete md aonnutshcerimpta nanudscarilpl ta.uAthlloarsutihnoclrusdhianvge Yre.Sa.d, Ea.nSd., aBg.Pre.,e Kd.tTo.Kth.,e Dp.uYb.,l iTs.hZe.dWv.,e arsnidonAo.Cf t.h deismcuanssuesdc rtihpet. results and commented on the manuscript. All authors have read and agreed to the published version of the Funding: This research received no external funding. manuscript. Acknowledgments: The work at Los Alamos National Laboratory was supported by the NNSA’s Laboratory FDuirnedcitnedg: RThesisearercshearacnhd reDceeivveeldo pnmo eenxttePrnroalg fruanmdianngd. was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy Office of Acknowledgments: The work at Los Alamos National Laboratory was supported by the NNSA’s Laboratory DNiarteicotneadl SReecuseraitryc,hL LaCndfo rDtheveeUlo.Sp.mDeenpta rPtmroegnrtaomf E annedrg yw’saNs NpSeArfo, urmndeedr, cionntpraacrtt,8 9a2t3 3th21e8 CCNenAte0r0 0f0o0r1 .InY.teSghraartmeda Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy Office of Science. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is managed by Materials Sciences and Engineering Division. Triad National Security, LLC for the U.S. Department of Energy’s NNSA, under contract 89233218CNA000001. Y. Sharma acknowledges the support from the Seaborg Fellowship at Los Alamos National Laboratory. Characterization efforts at ORNL were supported by the Department of Energy (DOE), Office of Science, Basic ERneefregrye nSccieesnces, Materials Sciences and Engineering Division.

Keywords

Dielectrics
Magnetism
Multiferroics
Rare-earth chromites
Thin films

Access to Document

10.3390/nano10102085

Cite this

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title = "Epitaxial stabilization of single-crystal multiferroic ycro3 thin films",

abstract = "We report on the growth of stoichiometric, single-crystal YCrO3 epitaxial thin films on (001) SrTiO3 substrates using pulsed laser deposition. X-ray diffraction and atomic force microscopy reveal that the films grew in a layer-by-layer fashion with excellent crystallinity and atomically smooth surfaces. Magnetization measurements demonstrate that the material is ferromagnetic below 144 K. The temperature dependence of dielectric permittivity shows a characteristic relaxor-ferroelectric behavior at TC = 375–408 K. A dielectric anomaly at the magnetic transition temperature indicates a close correlation between magnetic and electric order parameters in these multiferroic YCrO3 films. These findings provide guidance to synthesize rare-earth, chromite-based multifunctional heterostructures and build a foundation for future studies on the understanding of magnetoelectric effects in similar material systems.",

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author = "Yogesh Sharma and Elizabeth Skoropata and Binod Paudel and Kang, {Kyeong Tae} and Dmitry Yarotski and Ward, {T. Zac} and Aiping Chen",

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AU - Paudel, Binod

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AU - Yarotski, Dmitry

AU - Ward, T. Zac

AU - Chen, Aiping

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AB - We report on the growth of stoichiometric, single-crystal YCrO3 epitaxial thin films on (001) SrTiO3 substrates using pulsed laser deposition. X-ray diffraction and atomic force microscopy reveal that the films grew in a layer-by-layer fashion with excellent crystallinity and atomically smooth surfaces. Magnetization measurements demonstrate that the material is ferromagnetic below 144 K. The temperature dependence of dielectric permittivity shows a characteristic relaxor-ferroelectric behavior at TC = 375–408 K. A dielectric anomaly at the magnetic transition temperature indicates a close correlation between magnetic and electric order parameters in these multiferroic YCrO3 films. These findings provide guidance to synthesize rare-earth, chromite-based multifunctional heterostructures and build a foundation for future studies on the understanding of magnetoelectric effects in similar material systems.

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