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Large Resistance Change on Magnetic Tunnel Junction based Molecular Spintronics Devices
Journal of Magnetism and Magnetic Materials ( IF 2.7 ) Pub Date : 2018-05-01 , DOI: 10.1016/j.jmmm.2018.01.024
Pawan Tyagi , Edward Friebe

Abstract Molecular bridges covalently bonded to two ferromagnetic electrodes can transform ferromagnetic materials and produce intriguing spin transport characteristics. This paper discusses the impact of molecule induced strong coupling on the spin transport. To study molecular coupling effect the octametallic molecular cluster (OMC) was bridged between two ferromagnetic electrodes of a magnetic tunnel junction (Ta/Co/NiFe/AlOx/NiFe/Ta) along the exposed side edges. OMCs induced strong inter-ferromagnetic electrode coupling to yield drastic changes in transport properties of the magnetic tunnel junction testbed at the room temperature. These OMCs also transformed the magnetic properties of magnetic tunnel junctions. SQUID and ferromagnetic resonance studies provided insightful data to explain transport studies on the magnetic tunnel junction based molecular spintronics devices.

中文翻译:

基于磁隧道结的分子自旋电子器件的大电阻变化

摘要 共价键合到两个铁磁电极的分子桥可以转化铁磁材料并产生有趣的自旋输运特性。本文讨论了分子诱导强耦合对自旋输运的影响。为了研究分子耦合效应,八金属分子簇 (OMC) 被桥接在磁隧道结 (Ta/Co/NiFe/AlOx/NiFe/Ta) 的两个铁磁电极之间,沿着暴露的侧边。OMCs 诱导强的干扰铁磁电极耦合,使磁隧道结试验台在室温下的传输特性发生剧烈变化。这些 OMC 还改变了磁性隧道结的磁性。
更新日期:2018-05-01
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