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论文类型：期刊论文

发表时间：2018-03-14

发表刊物：NATURE COMMUNICATIONS

收录刊物：SCIE、Scopus

卷号：9

期号：1

ISSN号：2041-1723

关键字：iron oxide; iron yttrium oxide; unclassified drug; yttrium, amplitude; detection method; electromagnetic field; electron; heating; information processing; magnetization; resonance; temperature; wave damping, Article; electric potential; electromagnetism; hysteresis; microwave irradiation; signal detection; signal noise ratio; temperature dependence

摘要：Information transport and processing by pure magnonic spin currents in insulators is a promising alternative to conventional charge-current-driven spintronic devices. The absence of Joule heating and reduced spin wave damping in insulating ferromagnets have been suggested for implementing efficient logic devices. After the successful demonstration of a majority gate based on the superposition of spin waves, further components are required to perform complex logic operations. Here, we report on magnetization orientation-dependent spin current detection signals in collinear magnetic multilayers inspired by the functionality of a conventional spin valve. In Y3Fe5O12 vertical bar CoO vertical bar Co, we find that the detection amplitude of spin currents emitted by ferromagnetic resonance spin pumping depends on the relative alignment of the Y3Fe5O12 and Co magnetization. This yields a spin valve-like behavior with an amplitude change of 120% in our systems. We demonstrate the reliability of the effect and identify its origin by both temperature-dependent and power-dependent measurements.