Jump to main content
Jump to site search

Issue 5, 2019
Previous Article Next Article

Spin-filtering and tunneling magnetoresistance effects in 6,6,12-graphyne-based molecular magnetic tunnel junctions

Author affiliations

Abstract

In the present study, by cutting 6,6,12-graphyne along vertical and horizontal directions, two kinds of 6,6,12-graphyne nanodots (6,6,12-GYNDs) with different sizes are obtained. Using these 6,6,12-GYNDs, we theoretically designed two kinds of 6,6,12-graphyne-based molecular magnetic tunnel junctions (MMTJs) and investigated their spin-dependent transport properties. Depending on the orientation of the 6,6,12-GYNDs and the connection of the 6,6,12-GYNDs to electrodes, our results show that the two MMTJs have novel transport behaviors. Two different net spin currents can be obtained by tuning the spin configurations and the maximal order of magnitudes of tunneling magnetoresistance values of the two MMTJs reaches 106%. The high spin-filtering ratio and large tunneling magnetoresistance value provide high sensitivity for practical applications. Therefore, the spin-filtering and tunneling magnetoresistance effects enable 6,6,12-graphyne-based MMTJs to be used as spintronic devices.

Graphical abstract: Spin-filtering and tunneling magnetoresistance effects in 6,6,12-graphyne-based molecular magnetic tunnel junctions

Back to tab navigation

Publication details

The article was received on 08 Nov 2018, accepted on 24 Dec 2018 and first published on 26 Dec 2018


Article type: Paper
DOI: 10.1039/C8CP06927A
Citation: Phys. Chem. Chem. Phys., 2019,21, 2734-2742

  •   Request permissions

    Spin-filtering and tunneling magnetoresistance effects in 6,6,12-graphyne-based molecular magnetic tunnel junctions

    J. Li, M. Di, Z. Yang, L. Xu, Y. Yang and X. Liu, Phys. Chem. Chem. Phys., 2019, 21, 2734
    DOI: 10.1039/C8CP06927A

Search articles by author

Spotlight

Advertisements