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Comment on "Magnetic Relaxations of Antiferromagnetic Nanoparticles in Magnetic Fields"

E. del Barco·M. Duran·J. M. Hernandez·J. Tejada
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Abstract

We have carried out in ferritin the Field-Cooling method and data analysis proposed by Mamiya et al. (Phys. Rev. Lett. 88, 67202 (2002) at T = 5 K in order to check the time magnetic relaxation of these antiferromagnetic nanoparticles as a function of the magnetic field. We found that relaxation at T = 5 K in ferritin is faster in the absence of magnetic field, in good agreement with the zero-field Resonant Spin Quantum Tunneling observed previously in ferritin (Phys. Rev. Lett. 79, 1754 (1997).

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E. del Barco, M. Duran, J. M. Hernandez, J. Tejada. 2002-03-05. Comment on "Magnetic Relaxations of Antiferromagnetic Nanoparticles in Magnetic Fields". https://arxiv.org/abs/cond-mat/0203088

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