多功能有機自組裝單分子層自旋閥

我們探討了有機自組裝單分子層自旋閥表面、磁性和電性上的表現。我們嘗試使用了壓印製程和低功率濺鍍來製備上層鐵磁電極以防止上層分子擴散到有機層或直接連接到下層電極。最後發現低功率濺鍍上層電極可以避免這些問題。經過完整的剖析後發現元件有電滯的現象可能來自於電子穿隧效應及有機分子和鐵磁層介面電賀累積的貢獻。在這個實驗中，我們成功的製備出室溫下1%的磁阻且成功展示出電阻態在外加脈衝刺激下的轉換。這些特性讓我們發現單一元件可同時具備有磁阻式和電阻式非揮發性記憶體的潛力。

關鍵字

自組裝單分子層；硫基；磁阻；滯後現象；多功能

並列摘要

We report the surface, magnetic and charge transport in organic spin valve structure (Ferromagnetic/Organic/Ferromagnetic) with self-assembled monolayer barrier. We have built top ferromagnetic electrode by transfer printing and sputtering to prevent interdiffusion or pinhole and observed that the interdiffusion could be suppressed by lowering the fabrication energy of the top ferromagnetic layer. A through study of the device characteristics reveals that the hysteresis on I-V measurement is proposed to contribute from tunneling through junction and charge　trapping on the thiol and ferromagnetic interface. Magnetoresistance ratio is 1 %　have reported in our system. We have demonstrated how the device can switch between two pair of conducting state for the potential of develop multifunction memory　device which combine MRAM and RRAM properties

並列關鍵字

Self-assembled monolayer ； Thiol ； Magnetoresistance ； Hysteresis ； Multifunction

參考文獻

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國際替代計量

多功能有機自組裝單分子層自旋閥

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