Room temperature magnetoresistance in an organic spin valve with an aromatic hydrocarbon macrocycle
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · Magnetism in coordination complexes · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tohoku University 1 WPI Advanced Institute for Materials Research, , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Isobe Degenerate π-Integration Project 2 JST, ERATO, , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Konica Minolta 3 , Ishikawa-cho, Hachioji 192-8505, Japan
The University of Tokyo 4 Department of Chemistry, Graduate School of Science, , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
Funding
ERATO Isobe Degenerate π-Integration Project · Murata Foundation · WPI-AIMR fusion research project
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