---
OA_type: closed access
_id: '17913'
abstract:
- lang: eng
  text: Electron transport across a molecular junction is characterized by an energy-dependent
    transmission function. The transmission function accounts for electrons tunneling
    through multiple molecular orbitals (MOs) with different phases, which gives rise
    to quantum interference (QI) effects. Because the transmission function comprises
    both interfering and noninterfering effects, individual interferences between
    MOs cannot be deduced from the transmission function directly. Herein, we demonstrate
    how the transmission function can be deconstructed into its constituent interfering
    and noninterfering contributions for any model molecular junction. These contributions
    are arranged in a matrix and displayed pictorially as a QI map, which allows one
    to easily identify individual QI effects. Importantly, we show that exponential
    conductance decay with increasing oligomer length is primarily due to an increase
    in destructive QI. With an ability to “see” QI effects using the QI map, we find
    that QI is vital to all molecular-scale electron transport.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Suman
  full_name: Gunasekaran, Suman
  last_name: Gunasekaran
- first_name: Julia E.
  full_name: Greenwald, Julia E.
  last_name: Greenwald
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Gunasekaran S, Greenwald JE, Venkataraman L. Visualizing quantum interference
    in molecular junctions. <i>Nano Letters</i>. 2020;20(4):2843-2848. doi:<a href="https://doi.org/10.1021/acs.nanolett.0c00605">10.1021/acs.nanolett.0c00605</a>
  apa: Gunasekaran, S., Greenwald, J. E., &#38; Venkataraman, L. (2020). Visualizing
    quantum interference in molecular junctions. <i>Nano Letters</i>. American Chemical
    Society. <a href="https://doi.org/10.1021/acs.nanolett.0c00605">https://doi.org/10.1021/acs.nanolett.0c00605</a>
  chicago: Gunasekaran, Suman, Julia E. Greenwald, and Latha Venkataraman. “Visualizing
    Quantum Interference in Molecular Junctions.” <i>Nano Letters</i>. American Chemical
    Society, 2020. <a href="https://doi.org/10.1021/acs.nanolett.0c00605">https://doi.org/10.1021/acs.nanolett.0c00605</a>.
  ieee: S. Gunasekaran, J. E. Greenwald, and L. Venkataraman, “Visualizing quantum
    interference in molecular junctions,” <i>Nano Letters</i>, vol. 20, no. 4. American
    Chemical Society, pp. 2843–2848, 2020.
  ista: Gunasekaran S, Greenwald JE, Venkataraman L. 2020. Visualizing quantum interference
    in molecular junctions. Nano Letters. 20(4), 2843–2848.
  mla: Gunasekaran, Suman, et al. “Visualizing Quantum Interference in Molecular Junctions.”
    <i>Nano Letters</i>, vol. 20, no. 4, American Chemical Society, 2020, pp. 2843–48,
    doi:<a href="https://doi.org/10.1021/acs.nanolett.0c00605">10.1021/acs.nanolett.0c00605</a>.
  short: S. Gunasekaran, J.E. Greenwald, L. Venkataraman, Nano Letters 20 (2020) 2843–2848.
date_created: 2024-09-09T07:36:41Z
date_published: 2020-03-06T00:00:00Z
date_updated: 2024-12-10T12:24:13Z
day: '06'
doi: 10.1021/acs.nanolett.0c00605
extern: '1'
external_id:
  pmid:
  - '32142291'
intvolume: '        20'
issue: '4'
language:
- iso: eng
month: '03'
oa_version: None
page: 2843-2848
pmid: 1
publication: Nano Letters
publication_identifier:
  eissn:
  - 1530-6992
  issn:
  - 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Visualizing quantum interference in molecular junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2020'
...