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Fabrication and Current-Voltage Characteristics of Ni Spin Quantum Cross Devices with P3HT:PCBM Organic Materials

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Title: Fabrication and Current-Voltage Characteristics of Ni Spin Quantum Cross Devices with P3HT:PCBM Organic Materials
Authors: Kaiju, Hideo Browse this author →KAKEN DB
Kondo, Kenji Browse this author →KAKEN DB
Basheer, Nubla Browse this author
Kawaguchi, Nobuyoshi Browse this author
White, Susanne Browse this author
Hirata, Akihiko Browse this author
Ishimaru, Manabu Browse this author
Hirotsu, Yoshihiko Browse this author
Ishibashi, Akira Browse this author
Keywords: thin film
electrical properties
Issue Date: 2010
Publisher: Cambridge University Press
Journal Title: MRS Proceedings
Volume: 1252
Start Page: 1252-J02-08
Publisher DOI: 10.1557/PROC-1252-J02-08
Abstract: We have proposed spin quantum cross (SQC) devices, in which organic materials are sandwiched between two edges of magnetic thin films whose edges are crossed, towards the realization of novel beyond-CMOS switching devices. In SQC devices, nanometer-size junctions can be produced since the junction area is determined by the film thickness. In this study, we have fabricated Ni SQC devices with poly-3-hexylthiophene (P3HT): 6, 6-phenyl C61-butyric acid methyl ester (PCBM) organic materials and investigated the current-voltage (I-V) characteristics experimentally and theoretically. As a result of I-V measurements, ohmic I-V characteristics have been obtained at room temperature for Ni SQC devices with P3HT:PCBM organic materials, where the junction area is as small as 16 nm x 16 nm. This experimental result shows quantitative agreement with the theoretical calculation results performed within the framework of the Anderson model under the strong coupling limit. Our calculation also shows that a high on/off ratio beyond 10000:1 can be obtained in Ni SQC devices with P3HT:PCBM organic materials under the weak coupling condition.
Rights: © 2010 Materials Research Society
Type: article
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 海住 英生

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