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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
Efecte túnel
Matèria condensada
Magnetic relaxation
Tunneling (Physics)
Condensed matter
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
It is part of: Journal of Applied Physics, 1993, vol. 73, núm. 10, p. 6952-6954
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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