The magnetic Purcell effect: the case of an emitter near an antiferromagnet
Beatriz A. Ferreira, N. M. R. Peres
TL;DR
This paper investigates the magnetic Purcell effect for a magnetic dipole near an antiferromagnet, deriving surface wave dispersion and quantizing the electromagnetic field to analyze emission enhancement.
Contribution
It provides the first detailed theoretical analysis of the magnetic Purcell effect near an antiferromagnetic interface, including dispersion relation derivation and electromagnetic quantization.
Findings
Derived the surface wave dispersion relation at the antiferromagnet interface.
Quantized the surface electromagnetic field for the magnetic Purcell effect.
Analyzed the magnetic Purcell enhancement using Fermi golden rule.
Abstract
In this paper we discuss the magnetic Purcell effect of a magnetic dipole near a semi-infinite antiferromagnet. Contrary to the electric Purcell effect, the magnetic one is not so well studied in the literature. We derive the dispersion relation of the surface wave existing at an antiferromagnetic-dielectric interface from the calculation of the reflection coefficient of the structure. After characterizing the surface wave we quantize the electromagnetic vector potential of the surface wave. This allow us to discuss the magnetic Purcell effect via Fermi golden rule.
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