MacNeal, B. E. and Speriosu, V. S. (1981) Modelling strain distributions in ion-implanted magnetic bubble materials. Journal of Applied Physics, 52 (6). pp. 3935-3940. ISSN 0021-8979 http://resolver.caltech.edu/CaltechAUTHORS:MACjap81
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The detailed properties of strain distributions in Ne+, B+, and He+ implanted magnetic bubble garnet materials are accounted for by calculating the nuclear energy loss as a function of depth. The calculation is based on stopped ion distributions for ZnS, with suitable corrections made for differences in material density. The constant of proportionality K between strain and nuclear energy loss, and the density ratio l are determined for each ion by comparing calculated strain distributions with experimental results obtained previously using an x-ray diffraction technique. It is found that K is roughly the same for all three ions, 0.016±0.003 (eV/Å3)^−1, and that the average value l = 0.79±0.08 is consistent with the actual density ratio l = 0.72. Good agreement is found in additional examples of both single and multiple implants (±10% relative error). Finally, a procedure for selecting the incident energies and dosages required to produce a uniformly strained layer for bubble device applications is described, and then demonstrated by achieving a 0.4-um-thick layer with (1.07±0.09)% strain, using a double B+ implant.
|Additional Information:||© 1981 American Institute of Physics. (Received 24 November 1980; accepted for publication 6 March 1981)|
|Subject Keywords:||MAGNETIC MATERIALS, MAGNETIC BUBBLES, ION IMPLANTATION, MATHEMATICAL MODELS, STRAINS, SPATIAL DISTRIBUTION, NEON IONS, BORON IONS, HELIUM IONS, GARNETS, ZINC SULFIDES, ENERGY LOSSES, COMPARATIVE EVALUATIONS, THEORETICAL DATA, X−RAY DIFFRACTION|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||16 Apr 2008|
|Last Modified:||26 Dec 2012 09:58|
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