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Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes
The Fe-based spin-crossover (SCO) complexes, especially the ligand-driven light-induced spin-change (LD-LISC) systems with high spin-transition temperature, are considered as the most promising building blocks for designing molecular spintronic devices due to their bistability between the high-spin...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063550/ https://www.ncbi.nlm.nih.gov/pubmed/35515830 http://dx.doi.org/10.1039/c9ra01420a |
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author | Li, Feifei Huang, Jing Hu, Yujie Li, Qunxiang |
author_facet | Li, Feifei Huang, Jing Hu, Yujie Li, Qunxiang |
author_sort | Li, Feifei |
collection | PubMed |
description | The Fe-based spin-crossover (SCO) complexes, especially the ligand-driven light-induced spin-change (LD-LISC) systems with high spin-transition temperature, are considered as the most promising building blocks for designing molecular spintronic devices due to their bistability between the high-spin (HS) and low-spin (LS) states. Here, we explore the transport properties of Fe(stpy)(4)(NCS)(2) LD-LISC SCO complexes with the trans and cis configurations sandwiched between Au electrodes by performing extensive density functional theory calculations combined with the non-equilibrium Green's function method. As for the trans configuration, the current through the molecular junction with the HS state is significantly larger than that of the LS state, which indicates that this Fe-based LD-LISC SCO complex with the trans configuration could act as a molecular switch when the spin transition is triggered by external stimuli. Remarkably, we observe the nearly perfect spin-filtering effect and obvious negative differential resistance feature in the Fe(stpy)(4)(NCX)(2) junctions with the trans and cis configurations, which is attributed by the dramatically different electronic structures of two spin channels and the bias-dependent transmission spectra, respectively. These obtained theoretical findings suggest that the examined Fe-based LD-LISC SCO complexes hold great potential in molecular spintronics. |
format | Online Article Text |
id | pubmed-9063550 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90635502022-05-04 Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes Li, Feifei Huang, Jing Hu, Yujie Li, Qunxiang RSC Adv Chemistry The Fe-based spin-crossover (SCO) complexes, especially the ligand-driven light-induced spin-change (LD-LISC) systems with high spin-transition temperature, are considered as the most promising building blocks for designing molecular spintronic devices due to their bistability between the high-spin (HS) and low-spin (LS) states. Here, we explore the transport properties of Fe(stpy)(4)(NCS)(2) LD-LISC SCO complexes with the trans and cis configurations sandwiched between Au electrodes by performing extensive density functional theory calculations combined with the non-equilibrium Green's function method. As for the trans configuration, the current through the molecular junction with the HS state is significantly larger than that of the LS state, which indicates that this Fe-based LD-LISC SCO complex with the trans configuration could act as a molecular switch when the spin transition is triggered by external stimuli. Remarkably, we observe the nearly perfect spin-filtering effect and obvious negative differential resistance feature in the Fe(stpy)(4)(NCX)(2) junctions with the trans and cis configurations, which is attributed by the dramatically different electronic structures of two spin channels and the bias-dependent transmission spectra, respectively. These obtained theoretical findings suggest that the examined Fe-based LD-LISC SCO complexes hold great potential in molecular spintronics. The Royal Society of Chemistry 2019-04-23 /pmc/articles/PMC9063550/ /pubmed/35515830 http://dx.doi.org/10.1039/c9ra01420a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Li, Feifei Huang, Jing Hu, Yujie Li, Qunxiang Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title | Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title_full | Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title_fullStr | Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title_full_unstemmed | Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title_short | Transport property of ligand-driven light-induced spin-change Fe-based spin crossover complexes |
title_sort | transport property of ligand-driven light-induced spin-change fe-based spin crossover complexes |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063550/ https://www.ncbi.nlm.nih.gov/pubmed/35515830 http://dx.doi.org/10.1039/c9ra01420a |
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