Electric excitation of spin resonance in antiferromagnetic conductors

TL;DR

This paper discusses how antiferromagnetic conductors enable electric excitation of spin resonance, which can surpass traditional magnetic methods and serve as a powerful tool for studying various complex materials.

Contribution

It introduces a novel mechanism for electric excitation of spin resonance in antiferromagnetic conductors, with potential applications in spintronics and material spectroscopy.

Findings

Electric spin resonance absorption exceeds traditional ESR by over four orders of magnitude

Applicable to a wide range of antiferromagnetic materials from different classes

Potential for new spectroscopic techniques in condensed matter physics

Abstract

Antiferromagnetism couples electron spin to its orbital motion, thus allowing excitation of electron-spin transitions by an ac electric rather than magnetic field - with absorption, exceeding that of common electron spin resonance at least by four orders of magnitude. In addition to potential applications in spin electronics, this phenomenon may be used as a spectroscopy to study antiferromagnetic materials of interest - from chromium to borocarbides, cuprates, iron pnictides, and organic and heavy fermion conductors.