High efficiency nonvolatile ferromagnet/superconductor switch
High efficiency nonvolatile ferromagnet/superconductor switch
复制标题
高效非易失性铁磁体/超导开关
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
I. Mazin
中科院分区：
文献类型：
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作者：
B. Nadgorny;I. Mazin
提出了一种复合磁超导开关。该器件基于超导体/铁磁体接触处的Andreev反射，结合了高效率和非挥发性。器件的低阻抗状态对应于超导体的正常状态，而高阻抗状态对应于超导状态。所提出的器件不需要高质量的Andreev接触;相反，界面散射显著提高了器件的效率。利用现有的铁磁材料可以实现高达1000%-2500%的效率。该器件可用作非易失性逻辑和存储器的基本元件。
A composite magnetosuperconducting switch is proposed. The device, which is based on Andreev reflection at the superconductor/ferromagnet contact, combines high efficiency with nonvolatility. The low-impedance state of the device corresponds to the normal state of the superconductor, whereas the high-impedance state corresponds to the superconducting state. The proposed device does not require high-quality Andreev contacts; on the contrary, interface scattering significantly increases the efficiency of the device. Up to 1000%–2500% efficiency can be achieved with the existing ferromagnetic materials. The device can be used as a basic element for nonvolatile logic and memory.