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

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...
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

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,...
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

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 have a...
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

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

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 involved orbitals. The...

You might also read

Related Articles

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

Sort by
Same author

Orientation dependence of the magnetic phase diagram of Yb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>.

Physical review. B·2026
Same author

Time evolution of a pumped molecular magnet-A time-resolved inelastic neutron scattering study.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Continuum of quantum fluctuations in a three-dimensional <i>S</i> = 1 Heisenberg magnet.

Nature physics·2024
Same author

Enhanced charge density wave with mobile superconducting vortices in La<sub>1.885</sub>Sr<sub>0.115</sub>CuO<sub>4</sub>.

Nature communications·2023
Same author

Role of Hsa-miR-122-3p in steroid-induced necrosis of femoral head.

European review for medical and pharmacological sciences·2019
Same author

Regulatory mechanism of mesalazine on TLR4/MyD88-dependent pathway in mouse ulcerative colitis model.

European review for medical and pharmacological sciences·2019

Related Experiment Video

Updated: May 21, 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

Quantum spin liquid in frustrated one-dimensional LiCuSbO4.

S E Dutton1, M Kumar, M Mourigal

  • 1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA. sed33@cam.ac.uk

Physical Review Letters
|June 12, 2012
PubMed
Summary
This summary is machine-generated.

This study reports on the quantum magnet LiCuSbO4, finding no phase transition down to 100 mK. Competing magnetic interactions in spin-1/2 chains explain the observed short-range order and high-field behavior.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Related Experiment Videos

Last Updated: May 21, 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

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Area of Science:

  • Condensed matter physics
  • Quantum magnetism

Background:

  • Investigating novel quantum magnetic materials is crucial for understanding emergent phenomena.
  • LiCuSbO4, featuring edge-sharing CuO6 octahedra, presents a unique spin-1/2 chain system.

Purpose of the Study:

  • To characterize the magnetic properties of LiCuSbO4.
  • To elucidate the underlying magnetic interactions and phase behavior.

Main Methods:

  • Experimental techniques including specific heat measurements and neutron scattering.
  • Theoretical modeling using exact diagonalization of spin chains.

Main Results:

  • Observed short-range magnetic order below 10 K, with no zero-field phase transition or spin freezing down to 100 mK.
  • Identified a distinct high-field phase near 12 T.
  • Neutron scattering revealed incommensurate spin correlations and placed an upper limit on the spin gap.
  • Exact diagonalization accurately reproduced experimental data for T > 2 K.

Conclusions:

  • LiCuSbO4 exhibits complex magnetic behavior driven by competing ferro- and antiferromagnetic interactions in its spin-1/2 chains.
  • The material does not undergo a conventional phase transition at low temperatures, highlighting its quantum nature.