Spin Splitting Unconstrained by Electron Pairing: The Spin-Vibronic States

Ham, Ungdon; Ho, W.

doi:10.1103/physrevlett.108.106803

Cited by 12 publications

(19 citation statements)

References 14 publications

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“…and IETS includes the observation of spin splitting of individual vibronic states in neutral and charged magnesium porphines in a magnetic field of up to 9 T. 225 These types of studies may help unveiling the nature of the electron charge and spin coupling to molecular vibrations. As a remark, STM studies of vibrational modes in molecules correspond to off-resonant tunnelling where the electron-phonon interaction is weak and thus the signature of vibrational modes is a small increase in the differential conductance, better seen as antisymmetric peaks in dI 2 /dV 2 (V).…”

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confidence: 99%

Single-molecule electronics: from chemical design to functional devices

et al. 2014

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The use of single molecules in electronics represents the next limit of miniaturisation of electronic devices, which would enable us to continue the trend of aggressive downscaling of silicon-based electronic devices. More significantly, the fabrication, understanding and control of fully functional circuits at the single-molecule level could also open up the possibility of using molecules as devices with novel, not-foreseen functionalities beyond complementary metal-oxide semiconductor technology (CMOS). This review aims at highlighting the chemical design and synthesis of single molecule devices as well as their electrical and structural characterization, including a historical overview and the developments during the last 5 years. We discuss experimental techniques for fabrication of single-molecule junctions, the potential application of single-molecule junctions as molecular switches, and general physical phenomena in single-molecule electronic devices.

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confidence: 99%

Single-molecule electronics: from chemical design to functional devices

et al. 2014

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“…The measurement by IETS was carried out with a home-built ultrahigh vacuum STM operated at ~ 600 mK and a base pressure of ~ 5×10 -11 torr [23][24][25]. The Au (110) and Cu(100) surfaces and Ag tips were prepared by repeated cycles of sputtering and annealing.…”

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confidence: 99%

Nature of Asymmetry in the Vibrational Line Shape of Single-Molecule Inelastic Electron Tunneling Spectroscopy with the STM

Chiang

Han

et al. 2016

Phys. Rev. Lett.

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“…Typically, atomic or molecular spin can be probed as a Kondo effect that manifests itself as a conductance anomaly at the Fermi level when it is coupled to a metallic system67. However, an effective method to manipulate molecular spin both individually and ensemble has been limited8. In this paper, we present the reversible control of a single spin in manganese phthalocyanine molecules on a Au(111) substrate.…”

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Reversible Single Spin Control of Individual Magnetic Molecule by Hydrogen Atom Adsorption

Liu

Yang

Jiang

et al. 2013

Sci Rep

123

142

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The reversible control of a single spin of an atom or a molecule is of great interest in Kondo physics and a potential application in spin based electronics. Here we demonstrate that the Kondo resonance of manganese phthalocyanine molecules on a Au(111) substrate have been reversibly switched off and on via a robust route through attachment and detachment of single hydrogen atom to the magnetic core of the molecule. As further revealed by density functional theory calculations, even though the total number of electrons of the Mn ion remains almost the same in the process, gaining one single hydrogen atom leads to redistribution of charges within 3d orbitals with a reduction of the molecular spin state from S = 3/2 to S = 1 that directly contributes to the Kondo resonance disappearance. This process is reversed by a local voltage pulse or thermal annealing to desorb the hydrogen atom.

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Spin Splitting Unconstrained by Electron Pairing: The Spin-Vibronic States

Cited by 12 publications

References 14 publications

Single-molecule electronics: from chemical design to functional devices

Single-molecule electronics: from chemical design to functional devices

Nature of Asymmetry in the Vibrational Line Shape of Single-Molecule Inelastic Electron Tunneling Spectroscopy with the STM

Reversible Single Spin Control of Individual Magnetic Molecule by Hydrogen Atom Adsorption

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