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    Rights statement: This is the peer reviewed version of the following article: K. Cui, K. S. Mali, D. Wu, X. Feng, K. Müllen, M. Walter, S. De Feyter, S. F. L. Mertens, Angew. Chem. Int. Ed. 2020, 59, 14049 which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202004016 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Ambient Bistable Single Dipole Switching in a Molecular Monolayer

Research output: Contribution to Journal/MagazineJournal articlepeer-review

E-pub ahead of print
  • K. Cui
  • K.S. Mali
  • D. Wu
  • X. Feng
  • K. Müllen
  • M. Walter
  • S. De Feyter
  • S.F.L. Mertens
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<mark>Journal publication date</mark>11/05/2020
<mark>Journal</mark>Angewandte Chemie - International Edition
Publication StatusE-pub ahead of print
Early online date11/05/20
<mark>Original language</mark>English

Abstract

Reported here is a molecular dipole that self‐assembles into highly ordered patterns at the liquid‐solid interface, and it can be switched at room temperature between a bright and a dark state at the single‐molecule level. Using a scanning tunneling microscope (STM) under suitable bias conditions, binary information can be written at a density of up to 41 Tb cm−2 (256 Tb/in2). The written information is stable during reading at room temperature, but it can also be erased at will, instantly, by proper choice of tunneling conditions. DFT calculations indicate that the contrast and switching mechanism originate from the stacking sequence of the molecular dipole, which is reoriented by the electric field between the tip and substrate.

Bibliographic note

This is the peer reviewed version of the following article: K. Cui, K. S. Mali, D. Wu, X. Feng, K. Müllen, M. Walter, S. De Feyter, S. F. L. Mertens, Angew. Chem. Int. Ed. 2020, 59, 14049 which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.202004016 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.