A spintronic device and preparation method for realizing visible light-controlled interfacial magnetism

A spintronic device, visible light technology, applied in field-controlled resistors, parts of electromagnetic equipment, manufacturing/processing of electromagnetic devices, etc. question
CN109768155BActive Publication Date: 2020-10-27XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2020-10-27

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Abstract

A spin electronic device that realizes visible light regulation of interface magnetism, including a substrate, a bottom electrode, a magnetic layer, an active layer and a top electrode; the bottom electrode is arranged on the upper surface of the substrate, the magnetic layer is arranged on the upper surface of the bottom electrode, and the active layer is arranged On the upper surface of the magnetic layer, a top electrode is disposed on the upper surface of the active layer; the active layer includes a donor and an acceptor. The spin electronic device of the present invention that realizes visible light control of interface magnetism uses a light-electromagnetic triple coupling organic semiconductor solar cell / ferromagnetic heterojunction, instead of a simple ionic liquid to control interface magnetism, and there is no chemical reaction and Corrosion problem also overcomes the problems of unstable photo-controlled magnetism and high energy consumption of existing solar photovoltaic spintronics devices.
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Description

technical field

[0001] The invention belongs to the technical field of spintronics devices, and in particular relates to a spintronics device and a preparation method for realizing visible light-regulated interfacial magnetism. Background technique

[0002] Spintronics has played a very important role in the miniaturization, economy and efficiency of electronic equipment, but spintronics devices that are regulated by current or voltage are limited by many practical factors, such as the limitation of the power supply network. Such regulation is also unsustainable in future Mars colonization or space travel. Today, solar photovoltaic spintronics devices are used to overcome the above limitations.

[0003] The disadvantages of the above-mentioned solar photovoltaic spintronics devices are: all existing optically controlled interfacial magnetism relies on the mutual coupling of photons and electron spins, that is, using circularly polarized femtosecond laser pulses, this method ...

Claims

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