کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1263656 | 1496832 | 2015 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Magnetic transport properties of DBTAA-based nanodevices with graphene nanoribbon electrodes Magnetic transport properties of DBTAA-based nanodevices with graphene nanoribbon electrodes](/preview/png/1263656.png)
• Magnetic transport properties of DBTAA and transition metal-DBTAA with ZGNR electrodes are investigated.
• DBTAA system can exhibit giant magnetoresistance, spin-filtering and spin-polarized current rectifying effects.
• Introducing of TM atoms has obvious effects on these spin-related effects.
Based on the density functional theory combined with the nonequilibrium Green’s function formalism, the magnetic transport properties of dibenzotetraaza[14]annulene (DBTAA) and transition metal (TM)-DBTAA (TM = Fe and Co) sandwiched between two ferromagnetic zigzag-edge graphene nanoribbon electrodes are investigated. The results show that giant magnetoresistance, spin-filtering and spin-polarized current rectifying effects can be realized simultaneously in the DBTAA system by modulating the external magnetic field. Introducing of TM atoms has obvious effects on these spin-related effects. The mechanisms of these intriguing phenomena are proposed and these phenomena would be instructive in the design of high-performance magnetic nanodevices.
We investigate systematically the magnetic transport properties of DBTAA and transition metal (TM)-DBTAA (TM = Fe and Co) sandwiched between two ZGNR electrodes. The results show that giant magnetoresistance, spin-filtering and spin-polarized current rectifying effects can be realized simultaneously in the DBTAA system. And introducing of TM atoms has obvious effects on these effects.Figure optionsDownload as PowerPoint slide
Journal: Organic Electronics - Volume 25, October 2015, Pages 308–316