Thermal stability of a proposed magnetic bubble metallurgy
- 1 January 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 24 (1), 36-39
- https://doi.org/10.1063/1.1655000
Abstract
It has been proposed that Permalloy (Ni0.8Fe0.2) can be used as thin‐film magnetic bubble generator and sensor, and Au is a proposed electrical connector for input/output. We find that significant interdiffusion occurs to levels of 1–10 at.% for the diffusion couples Ni/Au, Fe/Au, and Permalloy/Au. We have determined 350°C solubility levels for all pairs for 1100‐Å films for annealing times from 10 to 2400 min. There was no degradation of electrical or magnetic properties of the Permalloy/Au system even at the highest levels of interdiffusion, indicating that it is ideally suited for a magnetic bubble metallurgy.Keywords
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