Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y<sub>2</sub>NiIrO<sub>6</sub>

PENG Yi; DENG Zheng; LI Wenmin; SHI Luchuan; ZHAO Jianfa; ZHANG Jun; WANG Xiancheng; JIN Changqing

doi:10.11858/gywlxb.20230781

Volume 38 Issue 1

Feb 2024

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Chinese Journal of High Pressure Physics > 2024 > 38(1): 010103.

PENG Yi, DENG Zheng, LI Wenmin, SHI Luchuan, ZHAO Jianfa, ZHANG Jun, WANG Xiancheng, JIN Changqing. Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y2NiIrO6[J]. Chinese Journal of High Pressure Physics, 2024, 38(1): 010103. doi: 10.11858/gywlxb.20230781

Citation:

PENG Yi, DENG Zheng, LI Wenmin, SHI Luchuan, ZHAO Jianfa, ZHANG Jun, WANG Xiancheng, JIN Changqing. Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y₂NiIrO₆[J]. Chinese Journal of High Pressure Physics, 2024, 38(1): 010103. doi: 10.11858/gywlxb.20230781

Citation:

PENG Yi, DENG Zheng, LI Wenmin, SHI Luchuan, ZHAO Jianfa, ZHANG Jun, WANG Xiancheng, JIN Changqing. Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y₂NiIrO₆[J]. Chinese Journal of High Pressure Physics, 2024, 38(1): 010103. doi: 10.11858/gywlxb.20230781

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Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y₂NiIrO₆

doi: 10.11858/gywlxb.20230781

PENG Yi^{1, 2
,},
DENG Zheng^{1, 2,*
,
,},
LI Wenmin^{1, 3},
SHI Luchuan^{1, 2},
ZHAO Jianfa¹,
ZHANG Jun¹,
WANG Xiancheng¹,
JIN Changqing^{1, 2,*
,
,}

1.
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2.
School of Physics, University of Chinese Academy of Sciences, Beijing 101408, China
3.
Institute of Quantum Materials and Physics, Henan Academy of Sciences, Zhengzhou 450046, Henan, China

Received Date: 08 Nov 2023
Rev Recd Date: 14 Dec 2023
Accepted Date: 17 Jan 2024

Available Online: 29 Jan 2024

Issue Publish Date: 05 Feb 2024

Abstract

Abstract

Double perovskite Y₂NiIrO₆ is a ferrimagnetic material with Curie temperature of 192 K. It has drawn wide attention owing to its remarkable exchange-bias effect. Here, we studied the low-temperature crystal structure, electron transport properties and magnetoresistance of Y₂NiIrO₆. The crystal structure under 130 K is almost identical with that of room-temperature. The material shows semiconducting behavior in the temperature range of 130 to 300 K. Above Curie temperature it can be well describe as Efros-Shklovskii variable-range hopping model. Below Curie temperature, a departure occurs due to the forming of long-range ferrimagnetic ordering. It is interesting to find that the magnetic ordering results into negative magneto-resistance. Moreover, giant magnetoresistance up to –10% is induced by cooling field of 7.0 T. This mechanism of this remarkable effect provides a new boulevard to discover new type of giant magneto-resistance materials.
- high-pressure synthesis,
- double perovskite,
- exchange-bias effect,
- giant magnetoresistance

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References

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Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y₂NiIrO₆

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Cooling Fields Induced Giant Magnetoresistance in High-Pressure Synthesized Double Perovskite Y₂NiIrO₆