Turbulent fronts of quantum detonation in molecular magnets

TL;DR

This paper investigates the transition from quantum deflagration to detonation in molecular magnets, revealing that dipolar interactions induce turbulence and sonic speeds in the front, indicating a quantum detonation regime.

Contribution

It provides a full 3D model analysis of quantum deflagration and detonation in molecular magnets, highlighting the role of dipolar interactions and instabilities.

Findings

Dipolar interactions cause non-flat deflagration fronts.

Increasing bias leads to turbulent, sonic-speed fronts.

The transition signifies quantum detonation in the system.

Abstract

Dipolar-controlled quantum deflagration going over into quantum detonation in the elongated Mn_12 Ac molecular magnet in a strong transverse field has been considered within the full 3d model. It is shown that within the dipolar window around tunneling resonances the deflagration front is non-flat. With increasing bias, dipolar instability makes the front turbulent, while its speed reaches sonic values, that is a signature of detonation.