Energy emanating from the molecular nanomagnet Fe${}_8$ revisited

Abstract

In the molecular nanomagnet Fe${}_8$ tunneling can occur from a metastable state to an excited state followed by a transition to the ground state. This transition is accompanied by an energy release of $115.6$GHz. We constructed an experimental setup to measure whether this energy is released in the form of thermal or electromagnetic energy. Contrary to a previous publication we find no evidence for release of electromagnetic radiation. Our results for transitions between the first and second excited states to the ground state are consistent with a release of only thermal energy. This energy release extends for a longer time for the second excited state than for the first excited state.

References in corpus (5)

• Landau Zener method to study quantum phase interference of Fe8 molecular nanomagnets
• Superradiance from crystals of molecular nanomagnets
• Experimental Upper Bound on Superradiance Emission from Mn12 Acetate
• Energy Level Lifetimes in the Single-Molecule Magnet Fe_8 : Experiments and Simulations
• Electromagnetic radiation emanating from the molecular nanomagnet Fe8

Cited by in corpus (3)

• Field-dependent superradiant quantum phase transition of molecular magnets in microwave cavities
• Quantum avalanche in the Fe${}_8$ Molecular-Magnet
• Temperature changes of the Fe${}_8$ molecular magnet during its spin reversal process