Angular dependent magnetoresistance in organic spin valves

Huayan Xia; Sangjian Zhang; Hao Li; Tianli Li; Fang Liu; Wenchao Zhang; Wang Guo; Tian Miao; Wenjie Hu; Jian Shen; Yongli Gao; Junliang Yang; Mei Fang

Results in Physics (Mar 2021)

Angular dependent magnetoresistance in organic spin valves

Huayan Xia,
Sangjian Zhang,
Hao Li,
Tianli Li,
Fang Liu,
Wenchao Zhang,
Wang Guo,
Tian Miao,
Wenjie Hu,
Jian Shen,
Yongli Gao,
Junliang Yang,
Mei Fang

Affiliations

Huayan Xia: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Sangjian Zhang: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Hao Li: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Tianli Li: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Fang Liu: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Wenchao Zhang: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Wang Guo: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China
Tian Miao: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, PR China; Center for Spintronics and Quantum Systems, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
Wenjie Hu: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, PR China
Jian Shen: State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, PR China
Yongli Gao: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China; Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
Junliang Yang: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China; Corresponding authors.
Mei Fang: Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, PR China; Corresponding authors.

Journal volume & issue: Vol. 22
p. 103963

Abstract

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Vertical organic spin valve (OSV)-based organic spintronic devices with additional degree of freedom to utilize and control the magnetoresistance (MR) by spin of electrons, have attracted a lot of interests for both foundation science and future functional device applications. Herein the effects of temperature, bias voltage and direction of magnetic field on the MR of the OSV are investigated to disclose the mechanisms. Specifically, the MR shows angular dependence with the value tuned from negative to positive by rotating the field direction from in-plane to out-of-plane, corresponding to the angular dependent spin moment. A domain-switch model is proposed to simulate the resistance changes in OSV device. The research provides a new route to tune the MR in organic spintronic devices, which is significant for future functional device applications.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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