Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session G00: Poster Session I (2pm- 5pm CST)
2:00 PM,
Tuesday, March 15, 2022
Room: McCormick Place Exhibit Hall F1
Abstract: G00.00301 : Quantum Interference in Radical and Neutral Single-Molecule Junctions*
Presenter:
Juan Hurtado
(Universidad Autónoma de Madrid (UAM))
Authors:
Juan Hurtado
(Universidad Autónoma de Madrid (UAM))
Laura Rincón-García
(Universidad Autónoma de Madrid (UAM))
Nicolás Atraït
(Universidad Autónoma de Madrid (UAM))
Quantum interference (QI) in single-molecule junctions creates an anti-resonance in the transmission function near EF which usually translates in a decrease of the conductance (G) and in an increase of the Seebeck coefficient (S) (1). In particular, this phenomenon appears in molecules with meta connections (2). Here we present an experimental study of the G and S in single molecules by comparing para- and meta-connected fluorene derivatives (2) and Blatter radicals (3) using a scanning tunneling microscope (STM) at room temperature and ambient conditions. Our results reveal the importance of the intrinsic spin state of radicals for a simultaneous enhancement of G and S and the influence of QI in these transport properties.
*All authors acknowledge funding from EC H2020 FET Open project grant agreement number 767187 'QuIET'.
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