Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.7K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.7K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.7K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.7K
Interference and Diffraction02:18

Interference and Diffraction

54.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
54.6K
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

61.7K
The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
61.7K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

2.2K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
2.2K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.6K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Orbital-Phase Origin of Axis-Dependent Conduction Polarity in One-Dimensional Electrides.

The journal of physical chemistry letters·2026
Same author

Ring Current and Local Magnetic Fields Influenced by Quantum Interference in Molecular Junctions.

The journal of physical chemistry letters·2026
Same author

Imine linkers enable the formation of robust single-molecule junctions.

Chemical communications (Cambridge, England)·2026
Same author

Biaxial Strain Engineering for High-Performance Monolayer GeSe Sensors toward Nitrogen-Containing Toxic Gases.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

All-Electrical Manipulation for Magnetism and Fano Resonance in the Molecular Junction Based on a Covalently Functionalized Graphene Nanosheet.

The journal of physical chemistry letters·2026
Same author

Valley-Selective Linear-Polarization Photodetectors Based on the Photogating Heterostructure of SnS/Si.

ACS applied materials & interfaces·2026
Same journal

Real-Time Vibrational Spectroscopy Reveals an Inversion Transition State in the Photoisomerization of Phenylazoimidazole.

The journal of physical chemistry letters·2026
Same journal

Precursor-Directed Self-Assembly in Hydrothermal Carbon Nitride Nanostructures Revealed by Nano-FTIR.

The journal of physical chemistry letters·2026
Same journal

Correction to "Equation-of-Motion Block-Correlated Coupled Cluster Method for Excited Electronic States of Strongly Correlated Systems".

The journal of physical chemistry letters·2026
Same journal

Rationalizing Stacking-Dependent Charge Injection Dynamics in Radical-Based Organic Light-Emitting Diodes.

The journal of physical chemistry letters·2026
Same journal

Bottom-Up Formation of the Simplest Geminal Thiol─Methanedithiol (CH<sub>2</sub>(SH)<sub>2</sub>)─and the Methyl Hydrodisulfide (H<sub>3</sub>CSSH) Isomer in Interstellar Analogue Ices.

The journal of physical chemistry letters·2026
Same journal

Trion Mediated Sequential Charge Separation in Functionalized CsPbBr<sub>3</sub>/AgInS<sub>2</sub> Hybrid Nanocrystals.

The journal of physical chemistry letters·2026
See all related articles

Related Experiment Video

Updated: Apr 8, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.7K

Spin Filtering Induced by Quantum Interference and Weak Interfacial Spin Polarization.

Han Ma1, Hui-Qing Zhang1, Xiao-Bei Zhang1

  • 1School of Physics and Optoelectronics, Shandong Normal University, Jinan 250100, China.

The Journal of Physical Chemistry Letters
|April 7, 2026
PubMed
Summary
This summary is machine-generated.

Magnetic proximity effect in molecular junctions induces spin splitting of destructive quantum interference (DQI) dips. This enables efficient spin filtering in molecular spintronics without strong magnetic fields.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

9.1K
Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.4K

Related Experiment Videos

Last Updated: Apr 8, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.7K
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

9.1K
Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

7.4K

Area of Science:

  • Molecular spintronics
  • Quantum interference phenomena
  • Molecular electronics

Background:

  • Destructive quantum interference (DQI) in molecular devices leads to ultralow conductance.
  • Spin filtering is a key prospect for DQI, driven by the spin splitting of DQI features.
  • Achieving efficient spin filtering is crucial for advancing molecular spintronics.

Purpose of the Study:

  • To demonstrate spin splitting of DQI dips in magnetic DQI molecular junctions.
  • To investigate the role of magnetic proximity effect (MPE) in inducing spin splitting.
  • To explore a strategy for efficient spin filtering in molecular spintronics.

Main Methods:

  • Utilizing acene molecules and ferromagnetic electrodes in magnetic DQI molecular junctions.
  • Applying model calculations to analyze the mechanism of spin splitting.
  • Verifying results with first-principles calculations.

Main Results:

  • A weak magnetic proximity effect (MPE) induces distinct spin splitting of DQI dips.
  • Spin splitting arises from both MPE and electron-electron interactions, affecting wave functions.
  • Subtle spin splitting of eigenstates does not preclude distinct DQI dip splitting.

Conclusions:

  • A strategy for efficient spin filtering at low bias is presented.
  • This method bypasses the need for large intrinsic magnetic moments or strong magnetic fields.
  • Opens new avenues for spin-dependent DQI in molecular spintronics.