Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/22092
Title: Quantum tunneling of magnetization in single domain particles
Author: Tejada Palacios, Javier
Balcells i Argemí, Lluís
Linderoth, S. (Soren)
Perzynski, R.
Rigau, B.
Barbara, B.
Bacri, J. C. (Jean Claude)
Keywords: Relaxació magnètica
Magnetisme
Efecte túnel
Matèria condensada
Anisotropia
Magnetic relaxation
Magnetism
Tunneling (Physics)
Condensed matter
Anisotropy
Issue Date: 1993
Publisher: American Institute of Physics
Abstract: We present a study of the magnetic relaxation of several ferrofluids composed of particles of about 40 Å in diameter (Fe3O4FeC, CoFe2O4). Our key observation is a nonthermal character of the relaxation below 3 K for the CoFe2O4 ferrofluid and below 1 K for the FeC ferrofluid. The crossover temperature from thermal to nonthermal (quantum) regime is in accordance with theoretical suggestions of macroscopic quantum tunneling of magnetization in single doma in particles
Note: Reproducció digital del document proporcionada per AIP i http://dx.doi.org/10.1063/1.352445
It is part of: Journal of Applied Physics, 1993, vol. 73, núm. 10, p. 6952-6954
URI: http://hdl.handle.net/2445/22092
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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