期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 19, 期 14, 页码 9417-9423出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cp00641a
关键词
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资金
- National Natural Science Foundation of China [61401151]
- Hunan Provincial Natural Science Foundation of China [2015JJ3028]
- Science and Technology Plan Project of Hunan Province [2016TP1020]
- Construct Program of the Key Discipline in Hunan Province
In experimental studies, magnetoresistance (MR) values of 10(3) are hard to reach for conventional single-molecule spin-valves. Motivated by a recent experiment [Nano Lett., 2016, 16, 577-582], where tailored Co-salophene-based all-spin molecular devices are successfully realized, we demonstrate the functionality of a Co-salophene-based spin chain without magnetic electrodes. By using nonequilibrium Green's functions in combination with density functional theory, we find that the maximum MR ratio of this spin chain can reach 10(6) by manipulating its spins in a controlled way, which is several orders of magnitude higher than previously reported experimental values. As the Co-salophene-based spin chain has been successfully synthesized, we are highly expectant of the experimental realization of huge MR ratios.
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