Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions
In this paper, we investigate the coherent quantum transport in grapheme-based ferromagnet-superconductor-ferromagent junctions within the framework of BCS theory using DBdG quasiparticles equation .The coherency with the finite size of superconductor region has two characteristic features subgap el...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2010-09-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-470&slc_lang=en&sid=1 |
| _version_ | 1817985406781620224 |
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| author | M Salehi GH Rashedi |
| author_facet | M Salehi GH Rashedi |
| author_sort | M Salehi |
| collection | DOAJ |
| description | In this paper, we investigate the coherent quantum transport in grapheme-based ferromagnet-superconductor-ferromagent junctions within the framework of BCS theory using DBdG quasiparticles equation .The coherency with the finite size of superconductor region has two characteristic features subgap electron transport and oscillations of differential conductance. we show that periodic vanishing of the Andreev reflection at the energies called geometrical resonances above the superconducting gap is a striking consequence of quasiparticles interference. We suggest to make devices that produce polarized spin-current with possible applications in spintronics. |
| first_indexed | 2024-04-13T23:57:43Z |
| format | Article |
| id | doaj.art-a39628d1a04d4280b195417550b9919e |
| institution | Directory Open Access Journal |
| issn | 1682-6957 |
| language | English |
| last_indexed | 2024-04-13T23:57:43Z |
| publishDate | 2010-09-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-a39628d1a04d4280b195417550b9919e2022-12-22T02:23:50ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572010-09-01102135139Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctionsM SalehiGH RashediIn this paper, we investigate the coherent quantum transport in grapheme-based ferromagnet-superconductor-ferromagent junctions within the framework of BCS theory using DBdG quasiparticles equation .The coherency with the finite size of superconductor region has two characteristic features subgap electron transport and oscillations of differential conductance. we show that periodic vanishing of the Andreev reflection at the energies called geometrical resonances above the superconducting gap is a striking consequence of quasiparticles interference. We suggest to make devices that produce polarized spin-current with possible applications in spintronics.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-470&slc_lang=en&sid=1coherent quantum transportgraphenedifferential electronic conductancedifferential spintronic conductanceS-wave superconductordouble junctions |
| spellingShingle | M Salehi GH Rashedi Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions Iranian Journal of Physics Research coherent quantum transport graphene differential electronic conductance differential spintronic conductance S-wave superconductor double junctions |
| title | Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions |
| title_full | Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions |
| title_fullStr | Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions |
| title_full_unstemmed | Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions |
| title_short | Coherent quantum trasport in ferromagnet-superconductor-ferromagnet graphene junctions |
| title_sort | coherent quantum trasport in ferromagnet superconductor ferromagnet graphene junctions |
| topic | coherent quantum transport graphene differential electronic conductance differential spintronic conductance S-wave superconductor double junctions |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-470&slc_lang=en&sid=1 |
| work_keys_str_mv | AT msalehi coherentquantumtrasportinferromagnetsuperconductorferromagnetgraphenejunctions AT ghrashedi coherentquantumtrasportinferromagnetsuperconductorferromagnetgraphenejunctions |