Phonon-Induced Quantum Magnetic Deflagration in Mn12
A. Hernandez-Minguez (1), F. Macia (1), J. M. Hernandez (1), J. Tejada, (1), and P. V. Santos (2) ((1) Departament de Fisica Fonamental, Universitat, de Barcelona, Barcelona, Spain, (2) Paul-Drude-Institut fur, Festkorperelektronik, Berlin, Germany)
TL;DR
This paper investigates how high-frequency surface acoustic waves influence quantum magnetic deflagration in Mn12-acetate, revealing dependencies on wave parameters and external conditions, advancing understanding of spin relaxation mechanisms.
Contribution
It provides a detailed experimental analysis of SAW effects on magnetic avalanches in Mn12, extending previous studies with new data on ignition and propagation under varied conditions.
Findings
SAWs significantly affect magnetic avalanche ignition times.
Propagation speed depends on SAW frequency and amplitude.
External magnetic fields and temperature modulate SAW-induced effects.
Abstract
A comprehensive set of experiments on the effect of high-frequency surface acoustic waves, SAWs, in the spin relaxation in Mn12-acetate is presented. We have studied the quantum magnetic deflagration induced by SAWs under various experimental conditions extending the data shown in a very recent paper [A. Hernandez-Minguez et. al., Phys. Rev. Lett. 95, 217205 (2005)]. We have focused our study on the dependence of both the ignition time and the propagation speed of the magnetic avalanches on the frequency, amplitude, and duration of the SAW pulses in experiments performed under different temperatures and external magnetic fields.
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