An A- and B-site ordered quadruple perovskite oxide LaCu3Co2Re2O12 was synthesized at 9 GPa and 1323 K. The compound possesses a Pn-3 space group, where both A and B sites are orderly occupied by different cations with a nearly 100% degree of order. Bond valence sum calculations and x-ray absorption spectroscopy confirm the charge distribution to be LaCu2+3Co2+2Re5.5+2O12. A ferrimagnetic phase transition is found to occur around 150 K due to the Cu2+(↑)-Co2+(↑)-Re5.5+(↓) spin coupling found by x-ray magnetic circular dichroism at Cu-, Co-, and Re-L2,3 edges. The magnetoresistance effects as well as the first-principle calculations indicate the half-metallic nature for LaCu3Co2Re2O12 with a wider energy gap at the up-spin channel and a conducting band at the down-spin channel.
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12 October 2020
Research Article|
October 12 2020
Quadruple perovskite oxide LaCu3Co2Re2O12: A ferrimagnetic half metal with nearly 100% B-site degree of order
Zhehong Liu;
Zhehong Liu
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
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Qian Sun;
Qian Sun
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
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Xubin Ye;
Xubin Ye
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
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Xiao Wang;
Xiao Wang
3
Max Planck Institute for Chemical Physics of Solids
, Nöthnitzer Straße 40, 01187 Dresden, Germany
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Long Zhou;
Long Zhou
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
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Xudong Shen;
Xudong Shen
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
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Kai Chen;
Kai Chen
4
Helmholtz-Zentrum Berlin fur Materialien und Energie
, Albert-Einstein-Str..15, 12489 Berlin, Germany
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Lucie Nataf;
Lucie Nataf
5
Synchrotron SOLEIL
, L'Orme des Merisiers, Saint-Aubin, 91192 Gif-sur-Yvette Cedex, France
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Francois Baudelet;
Francois Baudelet
5
Synchrotron SOLEIL
, L'Orme des Merisiers, Saint-Aubin, 91192 Gif-sur-Yvette Cedex, France
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Stefano Agrestini;
Stefano Agrestini
6
ALBA Synchrotron Light Source
, Cerdanyola del Valles, 08290 Barcelona, Spain
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Chien-Te Chen;
Chien-Te Chen
7
National Synchrotron Radiation Research Center
, Hsinchu 30076, Taiwan
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Hong-Ji Lin;
Hong-Ji Lin
7
National Synchrotron Radiation Research Center
, Hsinchu 30076, Taiwan
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Hari Babu Vasili;
Hari Babu Vasili
6
ALBA Synchrotron Light Source
, Cerdanyola del Valles, 08290 Barcelona, Spain
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Manuel Valvidares
;
Manuel Valvidares
6
ALBA Synchrotron Light Source
, Cerdanyola del Valles, 08290 Barcelona, Spain
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Zhiwei Hu;
Zhiwei Hu
3
Max Planck Institute for Chemical Physics of Solids
, Nöthnitzer Straße 40, 01187 Dresden, Germany
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Yi-feng Yang;
Yi-feng Yang
a)
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
8
Songshan Lake Materials Laboratory
, Dongguan, Guangdong 523808, China
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Youwen Long
Youwen Long
a)
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
2
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, China
8
Songshan Lake Materials Laboratory
, Dongguan, Guangdong 523808, China
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Appl. Phys. Lett. 117, 152402 (2020)
Article history
Received:
August 18 2020
Accepted:
September 21 2020
Citation
Zhehong Liu, Qian Sun, Xubin Ye, Xiao Wang, Long Zhou, Xudong Shen, Kai Chen, Lucie Nataf, Francois Baudelet, Stefano Agrestini, Chien-Te Chen, Hong-Ji Lin, Hari Babu Vasili, Manuel Valvidares, Zhiwei Hu, Yi-feng Yang, Youwen Long; Quadruple perovskite oxide LaCu3Co2Re2O12: A ferrimagnetic half metal with nearly 100% B-site degree of order. Appl. Phys. Lett. 12 October 2020; 117 (15): 152402. https://doi.org/10.1063/5.0025704
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