Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y2CoRuO6

Zheng Deng; Maria Retuerto; Sizhan Liu; Mark Croft; Peter W. Stephens; Stuart Calder; Wenmin Li; Bijuan Chen; Changqing Jin; Zhiwei Hu; Man Rong Li; Hong Ji Lin; Ting Shan Chan; Chien Te Chen; Sun Woo Kim; Martha Greenblatt

doi:10.1021/acs.chemmater.8b02728

Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y₂CoRuO₆

Zheng Deng, Maria Retuerto, Sizhan Liu, Mark Croft, Peter W. Stephens, Stuart Calder, Wenmin Li, Bijuan Chen, Changqing Jin, Zhiwei Hu, Man Rong Li, Hong Ji Lin, Ting Shan Chan, Chien Te Chen, Sun Woo Kim, Martha Greenblatt

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Abstract

Y₂CoRuO₆ was synthesized as a B-site ordered double perovskite with distorted monoclinic P2₁/n symmetry and an average tilting of the CoO₆ and RuO₆ octahedra of ψ = 19.7°. DC magnetization measurements show a ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence of AC susceptibility, and a smeared peak in the specific heat together reveal spin glass-like dynamics. The magnetic subtleties resemble chaotic behavior as previously observed in some ferro- or ferrimagnetic materials that exhibit spin glass-like dynamics. It is argued that the magnetic dynamics in Y₂CoRuO₆ mainly stem from competition between antiferromagnetic Co-O-(Ru)-O-Co/Ru-O-(Co)-O-Ru and antiferromagnetic Co-O-Ru interactions, besides a degree of Co:Ru antisite disorder. Herein, the B-site ordered Y₂CoRuO₆ offers a model to explore the intriguing dynamics in correlated 3d-4d transition metal double perovskites.

Original language	English
Pages (from-to)	7047-7054
Number of pages	8
Journal	Chemistry of Materials
Volume	30
Issue number	20
DOIs	https://doi.org/10.1021/acs.chemmater.8b02728
State	Published - Oct 23 2018

Funding

This work was supported by NSF-DMR-1507252 grant. The works at IOPCAS were supported by NSF & MOST of China through research projects. Portions of this research used U.S. Department of Energy Office of Science user facilities as follows: The Advanced Photon Source (Contract No. DE-AC02-06CH11357); NSLS-I (DE-AC02-98CH10886); NSLS-II (DE-SC0012704); High Flux Isotope Reactor, operated by the Oak Ridge National Laboratory. The authors wish to gratefully acknowledge J.-G. Cheng, Y. W. Long, and J. Friedland for helpful discussions.

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Deng, Z., Retuerto, M., Liu, S., Croft, M., Stephens, P. W., Calder, S., Li, W., Chen, B., Jin, C., Hu, Z., Li, M. R., Lin, H. J., Chan, T. S., Chen, C. T., Kim, S. W., & Greenblatt, M. (2018). Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y₂CoRuO₆ Chemistry of Materials, 30(20), 7047-7054. https://doi.org/10.1021/acs.chemmater.8b02728

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title = "Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y2CoRuO6 ",

abstract = "Y2CoRuO6 was synthesized as a B-site ordered double perovskite with distorted monoclinic P21/n symmetry and an average tilting of the CoO6 and RuO6 octahedra of ψ = 19.7°. DC magnetization measurements show a ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence of AC susceptibility, and a smeared peak in the specific heat together reveal spin glass-like dynamics. The magnetic subtleties resemble chaotic behavior as previously observed in some ferro- or ferrimagnetic materials that exhibit spin glass-like dynamics. It is argued that the magnetic dynamics in Y2CoRuO6 mainly stem from competition between antiferromagnetic Co-O-(Ru)-O-Co/Ru-O-(Co)-O-Ru and antiferromagnetic Co-O-Ru interactions, besides a degree of Co:Ru antisite disorder. Herein, the B-site ordered Y2CoRuO6 offers a model to explore the intriguing dynamics in correlated 3d-4d transition metal double perovskites.",

author = "Zheng Deng and Maria Retuerto and Sizhan Liu and Mark Croft and Stephens, {Peter W.} and Stuart Calder and Wenmin Li and Bijuan Chen and Changqing Jin and Zhiwei Hu and Li, {Man Rong} and Lin, {Hong Ji} and Chan, {Ting Shan} and Chen, {Chien Te} and Kim, {Sun Woo} and Martha Greenblatt",

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AU - Stephens, Peter W.

AU - Calder, Stuart

AU - Li, Wenmin

AU - Chen, Bijuan

AU - Jin, Changqing

AU - Hu, Zhiwei

AU - Li, Man Rong

AU - Lin, Hong Ji

AU - Chan, Ting Shan

AU - Chen, Chien Te

AU - Kim, Sun Woo

AU - Greenblatt, Martha

PY - 2018/10/23

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N2 - Y2CoRuO6 was synthesized as a B-site ordered double perovskite with distorted monoclinic P21/n symmetry and an average tilting of the CoO6 and RuO6 octahedra of ψ = 19.7°. DC magnetization measurements show a ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence of AC susceptibility, and a smeared peak in the specific heat together reveal spin glass-like dynamics. The magnetic subtleties resemble chaotic behavior as previously observed in some ferro- or ferrimagnetic materials that exhibit spin glass-like dynamics. It is argued that the magnetic dynamics in Y2CoRuO6 mainly stem from competition between antiferromagnetic Co-O-(Ru)-O-Co/Ru-O-(Co)-O-Ru and antiferromagnetic Co-O-Ru interactions, besides a degree of Co:Ru antisite disorder. Herein, the B-site ordered Y2CoRuO6 offers a model to explore the intriguing dynamics in correlated 3d-4d transition metal double perovskites.

AB - Y2CoRuO6 was synthesized as a B-site ordered double perovskite with distorted monoclinic P21/n symmetry and an average tilting of the CoO6 and RuO6 octahedra of ψ = 19.7°. DC magnetization measurements show a ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence of AC susceptibility, and a smeared peak in the specific heat together reveal spin glass-like dynamics. The magnetic subtleties resemble chaotic behavior as previously observed in some ferro- or ferrimagnetic materials that exhibit spin glass-like dynamics. It is argued that the magnetic dynamics in Y2CoRuO6 mainly stem from competition between antiferromagnetic Co-O-(Ru)-O-Co/Ru-O-(Co)-O-Ru and antiferromagnetic Co-O-Ru interactions, besides a degree of Co:Ru antisite disorder. Herein, the B-site ordered Y2CoRuO6 offers a model to explore the intriguing dynamics in correlated 3d-4d transition metal double perovskites.

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Dynamic Ferrimagnetic Order in a Highly Distorted Double Perovskite Y₂CoRuO₆

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