Macroscopic quantum tunneling and coherence of spins

2012/12/20 by Owerre, Solomon Akaraka
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · doi:10.48550/arxiv.1212.4904

Abstract

We present a review of suppression of tunneling rate (energy splitting) for half-odd-integer spins in ferromagnetic and antiferromagnetic particles. We also review the quenching of the tunneling rate in the presence of a magnetic field.

Related

• Quantum spin tunneling of magnetization in small ferromagnetic particles
• Decoherence effects on the tunneling rate of paramagnetic and superparamagnetic particles
• Field-induced quasi-particle coherence effects in certain small magnets
• Macroscopic quantum tunneling in magnetic nanostructures
• Intermediate spin approach to the tunneling of nano-magnets