Related Experiment Video
Updated: Jun 23, 2025

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
A Triplet Resonance in Superconducting Fe1.03Se0.4Te0.6
Juanjuan Liu1, A T Savici2, G E Granroth2
1Department of Physics, Renmin University of China, Beijing 100872.
None:
From heavy fermion compounds and cuprates to iron pnictides and chalcogenides, a spin resonance at is a staple of nearly magnetic superconductors. Possible explanations include a two-particle bound state or loss of magnon damping in the superconducting state. While both scenarios suggest a central role for magnetic fluctuations, distinguishing them is important to identify the right theoretical framework to understand these types of unconventional superconductors. Using an inelastic neutron scattering technique, we show that the spin resonance in the optimally doped Fe1.03Se0.4Te0.6 superconductor splits into three peaks in a high magnetic field, a signature of a two-particle S=1 triplet bound state.
Related Concept Videos
Spin–Spin Coupling Constant: Overview
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...
Ferromagnetism
Electron Configuration of Multielectron Atoms
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...

