Spin detection using a ferromagnetic noncollinear spin valve

•The detected amplitude of spin current emitted by spin pumping depends on the NiFe magnetic states.•A spin valve-like behavior with reliable amplitude changes up to 110%.•Paving the road towards ultralow-dissipation spintronic devices based on pure spin current. Ferromagnetic noncollinear spin valv...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 485; pp. 85 - 88
Main Authors Hao, Runrun, Zhou, Tie, Zhong, Hai, Kang, Shishou, Liu, Guolei, Bai, Lihui, Han, Guangbing, Yu, Shuyun, Yan, Shishen
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.09.2019
Elsevier BV
Subjects
Amplitudes
Ferromagnetism
Intermetallic compounds
Iron compounds
Multilayers
Nickel compounds
Pure spin current
Spin detection
Spin valve
Spin valves
Spintronics
Spin detection
Pure spin current
Spin valve
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Summary:•The detected amplitude of spin current emitted by spin pumping depends on the NiFe magnetic states.•A spin valve-like behavior with reliable amplitude changes up to 110%.•Paving the road towards ultralow-dissipation spintronic devices based on pure spin current. Ferromagnetic noncollinear spin valve effect has been observed in a magnetic multilayer structure of IrMn/NiFe/Cu/Y3Fe5O12 (YIG). In this structure, the detected amplitude of spin current emitted by spin pumping depends on the NiFe magnetic states (saturation or unsaturation). This yields a spin valve-like behavior with reliable amplitude changes up to 110% and the behavior may originate from the difference of spin absorption when the NiFe layer is magnetically saturated or not. Our results provide a ferromagnetic noncollinear spin valve, paving the road towards ultralow-dissipation spintronic devices based on pure spin current.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2019.04.078