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

Valence Bond Theory02:42

Valence Bond Theory

8.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.9K
Valence Bond Theory02:45

Valence Bond Theory

38.9K
Overview of Valence Bond Theory
38.9K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.3K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the...
1.3K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.2K
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,...
1.2K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.5K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.5K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.9K
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...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Sonodynamic CoMg-Quercetin Nanozyme for Antibacterial Therapy and Multifunctional Bone Regeneration in Infectious Bone Defects.

Biomaterials research·2026
Same author

Relationship between endometrial VFI values detected by three-dimensional power Doppler ultrasound and pregnancy outcomes in FET patients and prediction of the optimal VFI range-a retrospective cohort study.

Frontiers in medicine·2026
Same author

Right lung cavitation: Don't forget coccidioidomycosis - A case report.

SAGE open medical case reports·2026
Same author

Self-oxidatively crosslinked sprayable hydrogel for microenvironment remodeling and accelerated healing of recurrent aphthous ulcers.

Materials today. Bio·2026
Same author

Prenatal Exposure to Neonicotinoid Insecticides and Neurological and Cognitive Development in Preschool Children: Evidence from a Birth Cohort in Guangxi, China.

Toxics·2026
Same author

Temperature-associated metabolic responses of Aspergillus cristatus revealed by untargeted LC-MS metabolomics.

World journal of microbiology & biotechnology·2026

Related Experiment Video

Updated: Apr 28, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.1K

Three-component ultracold Fermi gases with spin-orbit coupling.

Lihong Zhou1, Xiaoling Cui1, Wei Yi2

  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

Physical Review Letters
|June 1, 2014
PubMed
Summary

We discovered a new type of Fulde-Ferrell (FF) pairing in spin-orbit coupled Fermi systems due to synthetic spin-orbit coupling (SOC). This pairing exhibits unique properties like nonzero center-of-mass momentum and reentrant polaron states.

More Related Videos

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

9.3K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.3K

Related Experiment Videos

Last Updated: Apr 28, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.1K
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

9.3K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

17.3K

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Ultracold atomic gases

Background:

  • Investigating pairing phenomena in multi-component Fermi gases is crucial for understanding emergent quantum states.
  • Synthetic spin-orbit coupling (SOC) offers a powerful tool to engineer novel quantum phenomena in ultracold atomic systems.
  • Fermi-Fermi mixtures provide a versatile platform for exploring many-body physics and quantum phase transitions.

Purpose of the Study:

  • To explore the pairing physics in a three-component Fermi-Fermi mixture with synthetic spin-orbit coupling (SOC).
  • To investigate the emergence of a novel Fulde-Ferrell (FF) pairing state driven by SOC and spin-selective interactions.
  • To analyze the polaron-molecule transitions and the influence of SOC on these transitions.

Main Methods:

  • Theoretical investigation of a three-component Fermi-Fermi mixture.
  • Analysis of fermionic impurities interacting with a two-component Fermi gas featuring synthetic SOC.
  • Examination of the interplay between SOC and spin-selective attractive interactions.

Main Results:

  • A new type of FF pairing with nonzero center-of-mass momentum is identified in SOC Fermi systems.
  • Competition between FF-like molecular states leads to first-order phase transitions.
  • A nonmonotonic polaron-molecule transition boundary with SOC results in reentrant polaron states.

Conclusions:

  • The interplay of SOC and spin-selective interactions creates exotic FF pairing states.
  • Rich phase diagrams with competing FF phases and reentrant polaron states are predicted.
  • The studied phenomena are experimentally accessible with current techniques.