Manipulation of organic polyradicals in a single-molecule transistor

Jeppe Fock; Martin Christian Leijnse; Karsten Stein Jennum; A.S.  Zyazin; Jens Paaske; Per Hedegård; Mogens Brøndsted Nielsen; H.S.J.  van der Zant

doi:10.1103/PhysRevB.86.235403

Manipulation of organic polyradicals in a single-molecule transistor

Jeppe Fock, Martin Christian Leijnse, Karsten Stein Jennum, A.S. Zyazin, Jens Paaske, Per Hedegård, Mogens Brøndsted Nielsen, H.S.J. van der Zant

16 Citationer (Scopus)

Abstract

Inspired by cotunneling spectroscopy of spin-states in a single OPE5-based molecule, we investigate the prospects for electric control of magnetism in purely organic molecules contacted in a three-terminal geometry. Using the gate electrode, the molecule is reversibly switched between three different redox states, with magnetic spectra revealing both ferromagnetic and antiferromagnetic exchange couplings on the molecule. These observations are shown to be captured by an effective low-energy Heisenberg model, which we substantiate microscopically by a simple valence bond description of the molecule. These preliminary findings suggest an interesting route towards functionalized all-organic molecular magnetism.

Originalsprog	Engelsk
Tidsskrift	Physical Review B
Vol/bind	86
Udgave nummer	23
Antal sider	5
ISSN	2469-9950
DOI	https://doi.org/10.1103/PhysRevB.86.235403
Status	Udgivet - 4 dec. 2012

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10.1103/PhysRevB.86.235403

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abstract = "Inspired by cotunneling spectroscopy of spin-states in a single OPE5-based molecule, we investigate the prospects for electric control of magnetism in purely organic molecules contacted in a three-terminal geometry. Using the gate electrode, the molecule is reversibly switched between three different redox states, with magnetic spectra revealing both ferromagnetic and antiferromagnetic exchange couplings on the molecule. These observations are shown to be captured by an effective low-energy Heisenberg model, which we substantiate microscopically by a simple valence bond description of the molecule. These preliminary findings suggest an interesting route towards functionalized all-organic molecular magnetism.",

author = "Jeppe Fock and Leijnse, {Martin Christian} and Jennum, {Karsten Stein} and A.S. Zyazin and Jens Paaske and Per Hedeg{\aa}rd and Nielsen, {Mogens Br{\o}ndsted} and {van der Zant}, H.S.J.",

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T1 - Manipulation of organic polyradicals in a single-molecule transistor

AU - Fock, Jeppe

AU - Leijnse, Martin Christian

AU - Jennum, Karsten Stein

AU - Zyazin, A.S.

AU - Paaske, Jens

AU - Hedegård, Per

AU - Nielsen, Mogens Brøndsted

AU - van der Zant, H.S.J.

N1 - 235403

PY - 2012/12/4

Y1 - 2012/12/4

N2 - Inspired by cotunneling spectroscopy of spin-states in a single OPE5-based molecule, we investigate the prospects for electric control of magnetism in purely organic molecules contacted in a three-terminal geometry. Using the gate electrode, the molecule is reversibly switched between three different redox states, with magnetic spectra revealing both ferromagnetic and antiferromagnetic exchange couplings on the molecule. These observations are shown to be captured by an effective low-energy Heisenberg model, which we substantiate microscopically by a simple valence bond description of the molecule. These preliminary findings suggest an interesting route towards functionalized all-organic molecular magnetism.

AB - Inspired by cotunneling spectroscopy of spin-states in a single OPE5-based molecule, we investigate the prospects for electric control of magnetism in purely organic molecules contacted in a three-terminal geometry. Using the gate electrode, the molecule is reversibly switched between three different redox states, with magnetic spectra revealing both ferromagnetic and antiferromagnetic exchange couplings on the molecule. These observations are shown to be captured by an effective low-energy Heisenberg model, which we substantiate microscopically by a simple valence bond description of the molecule. These preliminary findings suggest an interesting route towards functionalized all-organic molecular magnetism.

U2 - 10.1103/PhysRevB.86.235403

DO - 10.1103/PhysRevB.86.235403

M3 - Journal article

SN - 2469-9950

VL - 86

JO - Physical Review B

JF - Physical Review B

IS - 23

ER -

Manipulation of organic polyradicals in a single-molecule transistor

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