Electromagnetic radiation produced by avalanches in the magnetization reversal of Mn12-Acetate

TL;DR

This paper reports the detection of intense electromagnetic radiation emitted during magnetization avalanches in Mn12-Acetate, proposing a superradiance model to explain the phenomenon.

Contribution

It presents the first measurement of electromagnetic radiation during magnetization avalanches and introduces a superradiance-based explanation for the observed bursts.

Findings

Detected short bursts of radiation exceeding black-body emission.

Proposed superradiance from spin levels as the emission mechanism.

Radiation intensity significantly higher than expected from thermal sources.

Abstract

Electromagnetic radiation produced by avalanches in the magnetization reversal of Mn12-Acetate has been measured. Short bursts of radiation have been detected, with intensity significantly exceeding the intensity of the black-body radiation from the sample. The model based upon superradiance from inversely populated spin levels has been suggested.