Spin Filter and Negative Differential Resistance in Carbon-Based Device with Defects

摘要：

　　In this work, we report the electronic transport properties of an atomic carbon chain sandwiched between two ferromagnetic zigzag graphene nanoribbon electrodes with symmetrical nitrogen-vacancy defects using the density functional theory combining with the non-equilibrium Greens function method.Our results show that a perfect spin filter is observed with almost 100% spin polarization.Moreover, we also see the negative differential resistance effect from the spin-up current under a low positive voltage bias.These results may promise potential applications in spintronic devices with multi-function in the future.

关键词： Atomic carbon chain Zigzag geographer ribbon Nitrogen-vacancy defects Spin filter Negative differential resistance

作者: Zhao-hui Gong Tong-sheng Xia Ya-xin Wang

作者单位: School of Electronic and Information Engineering, Beihang University, Beijing 100191, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 427-431

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）