DOI: 10.1063/1.364776. Activation volume of α-Fe particles in alumite films

Activation volume of α-Fe particles in alumite films

10.1063/1.364776

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The time-dependent properties of arrays of elongated and mutually aligned iron particles in alumite (anodized aluminum oxide film) have been studied. At a constant particle diameter of 11 nm, the magnetic viscosity is nearly independent of the particle length (varied from 140 to 440 nm). The activation volume (1.1 to 1.2×10−18 cm3) is almost independent of the particle length and fields: this nearly constant value is much smaller than previously reported values, but very close to the theoretical superparamagnetic limit 1.0×10−18 cm3 at room temperature.

Bibliography

Li, F., & Metzger, R. M. (1997). Activation volume of Î±-Fe particles in alumite films. Journal of Applied Physics, 81(8), 3806â3808.

Authors 2

Feiyue Li (first)
Robert M. Metzger (additional)

References 10 Referenced 56

10.1016/S0304-8853(97)90028-7 / J. Magn. Magn. Mater. (1990)
{'key': '2024020218242661000_r2', 'first-page': '389', 'volume': '88-23', 'year': '1988', 'journal-title': 'Proc. Electrochem. Soc.'} / Proc. Electrochem. Soc. (1988)
{'key': '2024020218242661000_r3', 'first-page': '4074', 'volume': 'MAG-30', 'year': '1994', 'journal-title': 'IEEE Trans. Magn.'} / IEEE Trans. Magn. (1994)
10.1016/0304-8853(95)00666-4 / J. Magn. Magn. Mater. (1996)
{'key': '2024020218242661000_r5'}
10.1088/0305-4608/14/8/005 / J. Phys. F (1984)
10.1063/1.361635 / J. Appl. Phys. (1996)
10.1063/1.349127 / J. Appl. Phys. (1991)
10.1016/0304-8853(86)90074-0 / J. Magn. Magn. Mater. (1986)
{'key': '2024020218242661000_r10'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:33 a.m.)
Deposited	1 year, 7 months ago (Feb. 2, 2024, 2:36 p.m.)
Indexed	4 weeks ago (Aug. 6, 2025, 8:42 a.m.)
Issued	28 years, 4 months ago (April 15, 1997)
Published	28 years, 4 months ago (April 15, 1997)
Published Print	28 years, 4 months ago (April 15, 1997)

Funders 0

None

BibTeX

@article{Li_1997, title={Activation volume of α-Fe particles in alumite films}, volume={81}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.364776}, DOI={10.1063/1.364776}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Li, Feiyue and Metzger, Robert M.}, year={1997}, month=apr, pages={3806–3808} }

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