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| Hauptseite > Publikationsdatenbank > Spin-polarized electron transmission through B-doped graphene nanoribbons with Fe functionalization: a first-principles study > print |
| Hauptseite > Publikationsdatenbank > Spin-polarized electron transmission through B-doped graphene nanoribbons with Fe functionalization: a first-principles study > print |
| 001 | 875157 | ||
| 005 | 20220930130236.0 | ||
| 024 | 7 | _ | |a 10.1088/1367-2630/ab8cac |2 doi |
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| 037 | _ | _ | |a FZJ-2020-01847 |
| 082 | _ | _ | |a 530 |
| 100 | 1 | _ | |a Tsukamoto, Shigeru |0 P:(DE-Juel1)131010 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Spin-polarized electron transmission through B-doped graphene nanoribbons with Fe functionalization: a first-principles study |
| 260 | _ | _ | |a [London] |c 2020 |b IOP73379 |
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| 520 | _ | _ | |a In this study, we investigate the electron transport properties of a B-doped armchair graphene nanoribbon (AGNR) suspended between graphene electrodes based on first-principles calculations. Our calculations reveal that one of the electron transmission channels of a pristine AGNR junction is closed by the B-doping. We then proceed to explore the effect of the B-doping on the spin-polarized electron transport behavior of a Fe-functionalized AGNR junction. As a result, transmission channels for majority-spin electrons are closed and the spin polarization of the electron transmission is enhanced from 0.60 for the Fe-functionalized AGNR junction to 0.96 for the B- and Fe-codoped one. This observation implies that the codoped AGNR junction can be employed as a spin filter. In addition, we investigate the electronic nature of the transmission suppression caused by the B-doping. A detailed analysis of the scattering wave functions clarifies that a mode modulation of an incident wave arises in the B-doped AGNR part and the incident wave connects to an evanescent wave in the transmission-side electrode. For pristine and Fe-functionalized AGNR junctions, such a mode modulation is not observed and the incident wave connects to a propagating wave in the transmission-side electrode. Tuning of electron transport property by exploiting such a mode modulation is one of promising techniques for designing functionality of spintronics devices. We also discuss the general correspondence between the electron transmission spectrum and the density of states of a junction. |
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| 773 | _ | _ | |a 10.1088/1367-2630/ab8cac |g Vol. 22, no. 6, p. 063022 - |0 PERI:(DE-600)1464444-7 |n 6 |p 063022 |t New journal of physics |v 22 |y 2020 |x 1367-2630 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/875157/files/Invoice_8148020_0.pdf |
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| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/875157/files/Tsukamoto_2020_New_J._Phys._22_063022.pdf |y OpenAccess |
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