Magnetic Resonant excitations in High-{$\rm T_c$} superconductors

TL;DR

This paper reviews the observation of a unique magnetic resonant excitation in high-temperature superconductors, highlighting its significance in understanding the magnetic properties associated with superconductivity.

Contribution

It provides a comprehensive review of inelastic neutron scattering studies revealing a spin resonant mode in high-Tc cuprates and discusses theoretical interpretations of this phenomenon.

Findings

Identification of a magnetic resonance mode in high-Tc superconductors

Discussion of theoretical models explaining the mode

Implications for understanding superconductivity mechanisms

Abstract

The observation of an unusual spin resonant excitation in the superconducting state of various High-Tc ~copper oxides by inelastic neutron scattering measurements is reviewed. This magnetic mode % (that does not exist in conventional superconductors) is discussed in light of a few theoretical models and likely corresponds to a spin-1 collective mode.