YCrWO6: Polar and Magnetic Oxide with CaTa2O6-Related Structure

Sun Woo Kim; Thomas J. Emge; Zheng Deng; Ritesh Uppuluri; Liam Collins; Saul H. Lapidus; Carlo U. Segre; Mark Croft; Changqing Jin; Venkatraman Gopalan; Sergei V. Kalinin; Martha Greenblatt

doi:10.1021/acs.chemmater.7b04941

YCrWO₆: Polar and Magnetic Oxide with CaTa₂O₆-Related Structure

Sun Woo Kim, Thomas J. Emge, Zheng Deng, Ritesh Uppuluri, Liam Collins, Saul H. Lapidus, Carlo U. Segre, Mark Croft, Changqing Jin, Venkatraman Gopalan, Sergei V. Kalinin, Martha Greenblatt

Functional Atomic Force Microscopy Group

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

24 Scopus citations

Abstract

A new polar and magnetic oxide, YCrWO₆, was successfully synthesized and characterized. YCrWO₆ crystallizes in polar orthorhombic space group Pna2₁ (no. 33) of edge-sharing dimers of CrO₆ and WO₆ octahedra, which are connected by corner-sharing to form a three-dimensional framework structure with Y³⁺ cations located in the channels. The structure of YCrWO₆ is related to that of CaTa₂O₆; however, the ordering of Cr³⁺ and W⁶⁺ in the octahedral sites breaks the inversion symmetry of the parent CaTa₂O₆ structure. X-ray absorption near edge spectroscopy of YCrWO₆ confirmed the oxidation state of Cr³⁺ and W⁶⁺. Temperature-dependent optical second harmonic generation measurements on YCrWO₆ confirmed the noncentrosymmetric character and evidenced a noncentrosymmetric-to-centrosymmetric phase transition above 800 °C. Piezoresponse force microscopy measurements on YCrWO₆ at room temperature show strong piezoelectric domains. Magnetic measurements of YCrWO₆ indicate antiferromagnetic order at T_N of -22 K with Weiss temperature of -34.66 K.

Original language	English
Pages (from-to)	1045-1054
Number of pages	10
Journal	Chemistry of Materials
Volume	30
Issue number	3
DOIs	https://doi.org/10.1021/acs.chemmater.7b04941
State	Published - Feb 13 2018

Funding

S.W.K. and M.G. gratefully acknowledge support from the NSF-DMR-1507252 grant. S.W.K. thanks Dr. Xiaoyan Tan, Corey Frank, and Prof. David Walker (Columbia University) for preparing a sample for PFM measurement. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. R.U. and V.G. acknowledge support from the National Science Foundation MRSEC Grant DMR-1420620. Part of this research used the ISS, 8-ID beamline at the National Synchrotron Light Source II, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. The authors wish to thank the NSLS-II scientists Klaus Attenkofer, Eli Stavitski, Sizhan Liu, and Trevor Tyson from NJIT for their prodigious help, without which this work could not have been done.

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title = "YCrWO6: Polar and Magnetic Oxide with CaTa2O6-Related Structure",

abstract = "A new polar and magnetic oxide, YCrWO6, was successfully synthesized and characterized. YCrWO6 crystallizes in polar orthorhombic space group Pna21 (no. 33) of edge-sharing dimers of CrO6 and WO6 octahedra, which are connected by corner-sharing to form a three-dimensional framework structure with Y3+ cations located in the channels. The structure of YCrWO6 is related to that of CaTa2O6; however, the ordering of Cr3+ and W6+ in the octahedral sites breaks the inversion symmetry of the parent CaTa2O6 structure. X-ray absorption near edge spectroscopy of YCrWO6 confirmed the oxidation state of Cr3+ and W6+. Temperature-dependent optical second harmonic generation measurements on YCrWO6 confirmed the noncentrosymmetric character and evidenced a noncentrosymmetric-to-centrosymmetric phase transition above 800 °C. Piezoresponse force microscopy measurements on YCrWO6 at room temperature show strong piezoelectric domains. Magnetic measurements of YCrWO6 indicate antiferromagnetic order at TN of -22 K with Weiss temperature of -34.66 K.",

author = "Kim, {Sun Woo} and Emge, {Thomas J.} and Zheng Deng and Ritesh Uppuluri and Liam Collins and Lapidus, {Saul H.} and Segre, {Carlo U.} and Mark Croft and Changqing Jin and Venkatraman Gopalan and Kalinin, {Sergei V.} and Martha Greenblatt",

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doi = "10.1021/acs.chemmater.7b04941",

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AU - Kim, Sun Woo

AU - Emge, Thomas J.

AU - Deng, Zheng

AU - Uppuluri, Ritesh

AU - Collins, Liam

AU - Lapidus, Saul H.

AU - Segre, Carlo U.

AU - Croft, Mark

AU - Jin, Changqing

AU - Gopalan, Venkatraman

AU - Kalinin, Sergei V.

AU - Greenblatt, Martha

PY - 2018/2/13

Y1 - 2018/2/13

N2 - A new polar and magnetic oxide, YCrWO6, was successfully synthesized and characterized. YCrWO6 crystallizes in polar orthorhombic space group Pna21 (no. 33) of edge-sharing dimers of CrO6 and WO6 octahedra, which are connected by corner-sharing to form a three-dimensional framework structure with Y3+ cations located in the channels. The structure of YCrWO6 is related to that of CaTa2O6; however, the ordering of Cr3+ and W6+ in the octahedral sites breaks the inversion symmetry of the parent CaTa2O6 structure. X-ray absorption near edge spectroscopy of YCrWO6 confirmed the oxidation state of Cr3+ and W6+. Temperature-dependent optical second harmonic generation measurements on YCrWO6 confirmed the noncentrosymmetric character and evidenced a noncentrosymmetric-to-centrosymmetric phase transition above 800 °C. Piezoresponse force microscopy measurements on YCrWO6 at room temperature show strong piezoelectric domains. Magnetic measurements of YCrWO6 indicate antiferromagnetic order at TN of -22 K with Weiss temperature of -34.66 K.

AB - A new polar and magnetic oxide, YCrWO6, was successfully synthesized and characterized. YCrWO6 crystallizes in polar orthorhombic space group Pna21 (no. 33) of edge-sharing dimers of CrO6 and WO6 octahedra, which are connected by corner-sharing to form a three-dimensional framework structure with Y3+ cations located in the channels. The structure of YCrWO6 is related to that of CaTa2O6; however, the ordering of Cr3+ and W6+ in the octahedral sites breaks the inversion symmetry of the parent CaTa2O6 structure. X-ray absorption near edge spectroscopy of YCrWO6 confirmed the oxidation state of Cr3+ and W6+. Temperature-dependent optical second harmonic generation measurements on YCrWO6 confirmed the noncentrosymmetric character and evidenced a noncentrosymmetric-to-centrosymmetric phase transition above 800 °C. Piezoresponse force microscopy measurements on YCrWO6 at room temperature show strong piezoelectric domains. Magnetic measurements of YCrWO6 indicate antiferromagnetic order at TN of -22 K with Weiss temperature of -34.66 K.

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YCrWO₆: Polar and Magnetic Oxide with CaTa₂O₆-Related Structure

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