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Switching Molecular Magnets

机译:开关分子磁铁

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Making use of the spin degree of freedom raises hope for a new class of integrated circuits for commercial use, which due to their nonvolatility, higher data processing speed, and smaller size compared with conventional electronic devices would be a great technological leap forward. This article investigates magnetic properties of single-molecule magnets (SMMs) focusing on possible mechanisms of magnetic switching. One mechanism considered is the phenomenon of macroscopic quantum tunneling of magnetization (OTM) in an external time-dependent magnetic field. The second mechanism follows from a spin momentum transfer from conduction electrons to molecules which effectively may reverse the spin momentum of the molecule attached to magnetic leads. Both authors are affiliated with the Faculty of Physics, Adam Mickiewicz University in Poznan (Poland) working on charge and spin-dependent transport in nano-scopic structures.
机译:利用自旋自由度为用于商业用途的新型集成电路带来了希望,由于它们的非易失性,与常规电子设备相比更高的数据处理速度和更小的尺寸,将是一项巨大的技术飞跃。本文研究了单分子磁体(SMM)的磁性能,重点研究了磁开关的可能机理。考虑的一种机制是在外部时间相关磁场中的宏观磁化量子隧穿现象(OTM)。第二种机制是自旋动量从传导电子转移到分子的过程,这可以有效地逆转附着在磁性引线上的分子的自旋动量。两位作者都隶属于波兰波兹南的亚当·米基维兹大学物理系,致力于纳米结构中电荷和自旋相关的传输。

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