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Signatures of Topological States in Conjugated Macrocycles

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Signatures of Topological States in Conjugated Macrocycles. / Almughathawi, Renad; Hou, Songjun; Wu, Qingqing et al.
In: Nano Letters, Vol. 24, No. 16, 09.04.2024, p. 4972-4978.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Almughathawi, R, Hou, S, Wu, Q & Lambert, CJ 2024, 'Signatures of Topological States in Conjugated Macrocycles', Nano Letters, vol. 24, no. 16, pp. 4972-4978. https://doi.org/10.1021/acs.nanolett.3c04796

APA

Almughathawi, R., Hou, S., Wu, Q., & Lambert, C. J. (2024). Signatures of Topological States in Conjugated Macrocycles. Nano Letters, 24(16), 4972-4978. https://doi.org/10.1021/acs.nanolett.3c04796

Vancouver

Almughathawi R, Hou S, Wu Q, Lambert CJ. Signatures of Topological States in Conjugated Macrocycles. Nano Letters. 2024 Apr 9;24(16):4972-4978. Epub 2024 Apr 9. doi: 10.1021/acs.nanolett.3c04796

Author

Almughathawi, Renad ; Hou, Songjun ; Wu, Qingqing et al. / Signatures of Topological States in Conjugated Macrocycles. In: Nano Letters. 2024 ; Vol. 24, No. 16. pp. 4972-4978.

Bibtex

@article{27609aebc0a847d39d82b77414f0ddf9,
title = "Signatures of Topological States in Conjugated Macrocycles",
abstract = "Single-molecule electrical junctions possess a molecular core connected to source and drain electrodes via anchor groups, which feed and extract electricity from specific atoms within the core. As the distance between electrodes increases, the electrical conductance typically decreases, which is a feature shared by classical Ohmic conductors. Here we analyze the electrical conductance of cycloparaphenylene (CPP) macrocycles and demonstrate that they can exhibit a highly nonclassical increase in their electrical conductance as the distance between electrodes increases. We demonstrate that this is due to the topological nature of the de Broglie wave created by electrons injected into the macrocycle from the source. Although such topological states do not exist in isolated macrocycles, they are created when the molecule is in contact with the source. They are predicted to be a generic feature of conjugated macrocycles and open a new avenue to implementing highly nonclassical transport behavior in molecular junctions.",
keywords = "macrocycles, single-molecule junction, topological states",
author = "Renad Almughathawi and Songjun Hou and Qingqing Wu and Lambert, {Colin J.}",
year = "2024",
month = apr,
day = "9",
doi = "10.1021/acs.nanolett.3c04796",
language = "English",
volume = "24",
pages = "4972--4978",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "16",

}

RIS

TY - JOUR

T1 - Signatures of Topological States in Conjugated Macrocycles

AU - Almughathawi, Renad

AU - Hou, Songjun

AU - Wu, Qingqing

AU - Lambert, Colin J.

PY - 2024/4/9

Y1 - 2024/4/9

N2 - Single-molecule electrical junctions possess a molecular core connected to source and drain electrodes via anchor groups, which feed and extract electricity from specific atoms within the core. As the distance between electrodes increases, the electrical conductance typically decreases, which is a feature shared by classical Ohmic conductors. Here we analyze the electrical conductance of cycloparaphenylene (CPP) macrocycles and demonstrate that they can exhibit a highly nonclassical increase in their electrical conductance as the distance between electrodes increases. We demonstrate that this is due to the topological nature of the de Broglie wave created by electrons injected into the macrocycle from the source. Although such topological states do not exist in isolated macrocycles, they are created when the molecule is in contact with the source. They are predicted to be a generic feature of conjugated macrocycles and open a new avenue to implementing highly nonclassical transport behavior in molecular junctions.

AB - Single-molecule electrical junctions possess a molecular core connected to source and drain electrodes via anchor groups, which feed and extract electricity from specific atoms within the core. As the distance between electrodes increases, the electrical conductance typically decreases, which is a feature shared by classical Ohmic conductors. Here we analyze the electrical conductance of cycloparaphenylene (CPP) macrocycles and demonstrate that they can exhibit a highly nonclassical increase in their electrical conductance as the distance between electrodes increases. We demonstrate that this is due to the topological nature of the de Broglie wave created by electrons injected into the macrocycle from the source. Although such topological states do not exist in isolated macrocycles, they are created when the molecule is in contact with the source. They are predicted to be a generic feature of conjugated macrocycles and open a new avenue to implementing highly nonclassical transport behavior in molecular junctions.

KW - macrocycles

KW - single-molecule junction

KW - topological states

U2 - 10.1021/acs.nanolett.3c04796

DO - 10.1021/acs.nanolett.3c04796

M3 - Journal article

VL - 24

SP - 4972

EP - 4978

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 16

ER -