DOI: 10.1063/1.1658915. Annealing Kinetics of the Induced Anisotropy in Ni–Fe Films: The Role of Atom Self-Diffusion in Grain Surface Regions

Annealing Kinetics of the Induced Anisotropy in Ni–Fe Films: The Role of Atom Self-Diffusion in Grain Surface Regions

10.1063/1.1658915

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

A theory is given which seems to explain the main aspects of the annealing properties of the induced anisotropy in thin Permalloy films. The theory concerns the main anisotropy component which is very likely due to directional atom pair ordering only (the other being of magnetostrictive origin). The theory is based on the high atom mobility existing usually, in thermal equilibrium conditions, in the vicinity of the grain boundaries and grain surfaces. A kinetic law is derived for the case of annealing not producing grain growth. The phenomenon involved is in this case the evolution of the directional atom pair order in the vicinity of immobile grain boundaries and surfaces. A good agreement is found with experimental data. A second important phenomenon is the effect of the grain boundary migration during grain growth on the induced anisotropy of the film regions swept by the boundaries. This effect has been also computed in a more qualitative way and seems able to explain the irreversible anisotropy evolution observed after many annealings. Lastly the anisotropy energy measured after film deposition may also be derived, but in this case the theory needs still further refinements to give more satisfactory results.

Bibliography

Roth, M. (1970). Annealing Kinetics of the Induced Anisotropy in NiâFe Films: The Role of Atom Self-Diffusion in Grain Surface Regions. Journal of Applied Physics, 41(3), 1286â1294.

Authors 1

Michel Roth (first)

References 29 Referenced 14

10.1063/1.1723093 / J. Appl. Phys. (1958)
10.1051/jphysrad:01954001504022500 / J. Phys. Radium (1954)
{'key': '2024020201515835300_r3', 'first-page': '269', 'volume': '7', 'year': '1955', 'journal-title': 'Sci. Rep. Res. Inst., Tohoku Univ., Ser. A'} / Sci. Rep. Res. Inst., Tohoku Univ., Ser. A (1955)
10.1063/1.1703116 / J. Appl. Phys. (1965)
{'key': '2024020201515835300_r4a'}
10.1109/TMAG.1968.1066216 / IEEE Trans. Magnetics (1968)
10.1109/TMAG.1969.1066484 / IEEE Trans. Magnetics (1969)
10.1063/1.1709659 / J. Appl. Phys. (1967)
10.1109/TMAG.1968.1066177 / IEEE Trans. Magnetics (1968)
{'key': '2024020201515835300_r5b', 'first-page': '746', 'volume': '38', 'year': '1968', 'journal-title': 'J. Appl. Phys.'} / J. Appl. Phys. (1968)
10.1063/1.1657968 / J. Appl. Phys. (1969)
10.1002/pssb.19690350247 / Phys. Status Solidi (1969)
10.1063/1.2163608 / J. Appl. Phys. (1968)
{'key': '2024020201515835300_r9'}
{'key': '2024020201515835300_r10'}
{'key': '2024020201515835300_r11'}
{'key': '2024020201515835300_r12'}
{'key': '2024020201515835300_r13'}
{'key': '2024020201515835300_r15'}
{'key': '2024020201515835300_r16'}
{'key': '2024020201515835300_r17'}
{'key': '2024020201515835300_r18'}
10.1016/0001-6160(62)90092-5 / Acta Metall. (1962)
{'key': '2024020201515835300_r20'}
10.1063/1.2163610 / J. Appl. Phys. (1968)
10.1002/pssb.19660170231 / Phys. Status Solidi (1966)
{'key': '2024020201515835300_r23'}
10.1016/0001-6160(61)90034-7 / Acta Metall. (1961)
10.1016/0079-6425(63)90011-2 / Progr. Mater. Sci. (1963)

Dates

Type	When
Created	21 years, 6 months ago (Feb. 9, 2004, 11:56 a.m.)
Deposited	1 year, 6 months ago (Feb. 1, 2024, 8:52 p.m.)
Indexed	1 year, 6 months ago (Feb. 4, 2024, 1:43 p.m.)
Issued	55 years, 5 months ago (March 1, 1970)
Published	55 years, 5 months ago (March 1, 1970)
Published Print	55 years, 5 months ago (March 1, 1970)

Funders 0

None

BibTeX

@article{Roth_1970, title={Annealing Kinetics of the Induced Anisotropy in Ni–Fe Films: The Role of Atom Self-Diffusion in Grain Surface Regions}, volume={41}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1658915}, DOI={10.1063/1.1658915}, number={3}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Roth, Michel}, year={1970}, month=mar, pages={1286–1294} }

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