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Macroscopic quantum tunneling in single domain magnetic particles (1988)

DeFranzo, A. ; Klik, I. ; Gunther, L. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 63 (1988), S. 4234-4236

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Since the 1950's there have been a number of experimental observations involving small single domain (SD) magnetic particles ((approximately-less-than)200 A(ring) diameter) which have been attributed to what we'd today call "macroscopic quantum tunneling'' (MQT) of the magnetization in its switching from one easy axis direction to another. A comprehensive study of this phenomenon is not only of great interest for the sake of fundamental physics: It is of utmost practical importance in that MQT sets a limit on the lifetime of information storage on magnetic tapes and films. In this paper we present a brief summary of some of the latest results of our theoretical and experimental studies of this phenomenon.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.340216

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