Room temperature magnetoresistance in an organic spin valve with an aromatic hydrocarbon macrocycle
Room temperature magnetoresistance in an organic spin valve with an aromatic hydrocarbon macrocycle
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DOI：
10.1063/1.4979548
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发表时间：
2017-04
期刊：
影响因子：
6.1
通讯作者：
Kazuya Z. Suzuki;Tomoo Izumi;Xianmin Zhang;A. Sugihara;Song-Toan Pham;Hideo Taka;Sota Sato;H. Isobe;S. Mizukami
中科院分区：
文献类型：
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作者：
Kazuya Z. Suzuki;Tomoo Izumi;Xianmin Zhang;A. Sugihara;Song-Toan Pham;Hideo Taka;Sota Sato;H. Isobe;S. Mizukami
芳烃大环具有共轭π-电子系统，在各种有机器件中具有潜在的应用价值，尽管目前还没有将其应用于有机自旋阀（osv）的尝试。本文研究了含[6]环-2,7-萘环（CNAP）的osv，这是一种芳香烃大环。制备了不同CNAP厚度的Co/AlOx/CNAP/Ni80Fe20的OSV堆叠结构，并在300 ~ 5 K范围内测量了OSV的输运性能。在300 K时，15nm厚的osv的磁阻约为1%-2% (5k时为4%-6%)，显示了基于芳香烃大环的有机自旋电子学的潜力。
Aromatic hydrocarbon macrocycles, which have a conjugated π-electron system, are potentially useful for various organic device applications, although there have been no attempts to apply them to organic spin valves (OSVs). Here, we studied OSVs with [6]cyclo-2,7-naphthylene (CNAP), a type of aromatic hydrocarbon macrocycle. OSV stacking structures of Co/AlOx/CNAP/Ni80Fe20 with different CNAP thicknesses were fabricated, and the transport properties of the OSVs were measured from 300 to 5 K. A magnetoresistance of approximately 1%-2% at 300 K (4%-6% at 5 K) was observed for 15-nm-thick OSVs, showing the potential for organic spintronics based on aromatic hydrocarbon macrocycles.