Efficient spin-filtering, magnetoresistance and negative differential resistance effects of a one-dimensional single-molecule magnet Mn(dmit)2-based device with graphene nanoribbon electrodes

摘要

We present first-principle spin-dependent quantum transport calculations in a moleculardevice constructed by one single-molecule magnet Mn(dmit)2 and two graphenenanoribbon electrodes. Our results show that the device could generate perfect spinfilteringperformance in a certain bias range both in the parallel configuration (PC) andthe antiparallel configuration (APC). At the same time, a magnetoresistance effect,up to a high value of 103%, can be realized. Moreover, visible negative differentialresistance phenomenon is obtained for the spin-up current of the PC. These resultssuggest that our one-dimensional molecular device is a promising candidate for multifunctionalspintronics devices. ? 2017 Author(s). All article content, except whereotherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.