Abstract
The recent experimental data on the preparation and properties of materials containing Co-based magnetic nanoparticles are summarized. Particular attention is focused on the synthesis of cobalt nanoparticles in “rigid” matrices (polymers, metals, and solid surfaces) and their static magnetic properties, which are of great importance for practical applications. The conclusion is made that surface effects play an important role in determining the magnetic properties of nanoparticles.
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REFERENCES
Synthesis, Functionalization, and Surface Treatment of Nanoparticles, Baraton, M.I., Ed., Los-Angeles: Am. Sci., 2002.
Coey, J.M.D., Magnetism in Future, J. Magn. Magn. Mater., 2001, vol. 226, pp. 2107–2112.
Bozorth, R.M., Ferromagnetism, New York: Van Nostrand, 1951. Translated under the title Ferromagnetizm, Moscow: Inostrannaya Literatura, 1956.
Tikazumi, S., Fizika ferromagnetizma. Magnitnye svoistva veshchestva (Physics of Ferromagnetism: Magnetic Properties of Matter), Moscow: Mir, 1983 (translated from Japanese).
Jamet, M., Wernsdorfer, W., Thirion, C., et al., Magnetic Anisotropy of a Single Cobalt Nanocluster, Phys. Rev. Lett., 2001, vol. 86, pp. 4676–4679.
Chen, J.P., Sorensen, C.M., Klabunde, K.J., and Hadjipanayis, G.C., Enhanced Magnetization of Nanoscale Colloidal Cobalt Particles, Phys. Rev. B: Condens. Matter, 1995, vol. 51, pp. 11527–11532.
Respaud, M., Broto, J.M., Rakoto, H., et al., Surface Effects on the Magnetic Properties of Ultrafine Cobalt Particles, Phys. Rev. B: Condens. Matter, 1998, vol. 57, pp. 2925–2935.
McHenry, M.E., Majetich, S.A., Artman, J.O., et al., Superparamagnetism in Carbon-Coated Co Particles Produced by the Kratschmer Carbon Arc Process, Phys. Rev. B: Condens. Matter, 1994, vol. 49, pp. 11358–11363.
Yamamuro, S., Sumiyama, K., Kamiyama, T., and Suzuki, K., Morphological and Magnetic Characteristics of Monodispersed Co-Cluster Assemblies, J. Appl. Phys., 1999, vol. 86, pp. 5726–5732.
Allia, P., Coisson, M., Tiberto, P., et al., Granular Cu–Co Alloys as Interacting Superparamagnets, Phys. Rev. B: Condens. Matter, 2001, vol. 64, pp. 144420-1–144420-12.
Kodama, R.H., Magnetic Nanoparticles, J. Magn. Magn. Mater., 1999, vol. 200, pp. 359–372.
Tikazumi, S., Fizika ferromagnetizma. Magnitnye kharakteristiki i prakticheskie premineniya (Physics of Ferromagnetism: Magnetic Characteristics and Applications), Moscow: Mir, 1987 (translated from Japanese).
Sato, H., Kitakami, O., Dakurai, T., and Shimada, Y., Structure and Magnetism of hcp-Co Fine Particles, J. Appl. Phys., 1997, vol. 81, pp. 1858–1862.
Nanomaterials: Synthesis, Properties, and Application, Edelstein, A.S. and Cfmmarata, R.C., Eds., Bristol: Inst. of Publishing, 1998.
Becker, J.A., Schafer, R., Festag, J.R., et al., Magnetic Properties of Cobalt-Cluster Dispersions Generated in an Electrochemical Cell, Surf. Rev. Lett., 1996, vol. 3, no. 1, pp. 1121–1126.
Jamet, M., Wernsdorfer, W., Thirion, C., et al., Magnetic Anisotropy of Single Cobalt Nanocluster, Phys. Rev. Lett., 2001, vol. 86, no. 20, pp. 4676–4679.
Yin, J.S. and Wang, Z.L., Preparation of Self-Assembled Cobalt Nanocrystal Arrays, Nanostruct. Mater., 1999, vol. 10, no. 7, pp. 845–852.
Petit, C. and Pileni, M.P., Physical Properties of Self-Assembled Nanosized Cobalt Particles, Appl. Surf. Sci., 2000, vol. 162/163, pp. 519–528.
Kitahara, H., Oku, T., Hirano, T., and Suganuma, K., Synthesis and Characterization of Cobalt Nanoparticles Encapsulated in Boron Nitride Nanocages, Diamond Relat. Mater., 2001, no. 10, pp. 1210–1213.
Saito, Y., Ma, J., Nakashima, J., and Masuda, M., Synthesis, Crystal Structures, and Magnetic Properties of Co Particles Encapsulated in Carbon Nanocapsules, Z. Phys. D: At., Mol. Clusters, 1997, vol. 40, pp. 170–172.
Zhang, Z., Zhang, Y.D., Yines, W.A., et al., Size and Location of Cobalt Clusters in Zeolite NaY: A Nuclear Magnetic Resonance Study, J. Am. Chem. Soc., 1992, vol. 114, pp. 4843–4846.
Yayakawa, Y., Kohiki, S., Sato, M., et al., Magnetism of Diluted Co3O4 Nanocrystals, Physica E (Amsterdam), 2001, vol. 9, pp. 250–252.
Chuanyun, X., Jinlong, Y., Kaiming, D., and Delin, W., Magnetic Properties of Cobalt Clusters Embedded in a Copper Matrix, Phys. Rev. B: Condens. Matter, 1997, vol. 55, no. 6, pp. 3677–3682.
Dupuis, V., Tuaillon, J., Prevel, B., et al., From the Superparamagnetic to the Magnetically Ordered State in Systems of Transition Metal Clusters Embedded in Matrices, J. Magn. Magn. Mater., 1997, vol. 165, pp. 42–45.
Jamet, M., Negrier, M., Dupuis, V., et al., Interface Magnetic Anisotropy in Cobalt Clusters Embedded in a Platinum Matrix, J. Magn. Magn. Mater., 2001, vol. 237, pp. 293–301.
Bodker, F., Morup, S., Charles, S.W., and Linderoth, S., Surface Oxidation of Cobalt Nanoparticles Studied by Mossbauer Spectroscopy, J. Magn. Magn. Mater., 1999, vols. 196/197, pp. 18–19.
Ji, T., Shi, H., Zhao, J., and Zhao, Y., Synthesis of Co– B/Resin Nanoparticles and Heat Treatment Effect on Their Magnetic Properties, J. Magn. Magn. Mater., 2000, vol. 212, pp. 189–194.
Respaud, M., Broto, J.M., Rakoto, H., et al., Surface Effects on the Magnetic Properties of Ultrafine Cobalt Particles, Phys. Rev. B: Condens. Matter, 1998, vol. 57, no. 5, pp. 2925–2935.
Ramos, J., Millan, A., and Palacio, F., Production of Magnetic Nanoparticles in a Polyvinylpyridine Matrix, Polymer, 2000, vol. 41, pp. 8461–8464.
Leslie-Pelecky, D.L., Zhang, X.Q., and Rieke, R.D., Self-Stabilized Magnetic Colloids: Ultrafine Co Particles in Polymers, J. Appl. Phys., 1996, vol. 79, pp. 5312-5314.
Sako, S., Ohshima, K., Sakai, M., and Bandow, S., Magnetic Property of CoO Ultrafine Particle, Surf. Rev. Lett., 1996, vol. 3, pp. 109–113.
Kazakova, O., Hanson, M., Blomquist, P., and Wappilng, R., Arrays of Epitaxial Co Submicron Particles: Critical Size for Single-Domain Formation and Multidomain Structures, J. Appl. Phys., 2001, vol. 90, no. 5, pp. 2440–2446.
Legrand, J., Petit, C., Bazin, D., and Pileni, M.P., Collective Effect on Magnetic Properties of 2D Superlattices of Nanosized Cobalt Particles, Appl. Surf. Sci., 2000, vol. 164, pp. 186–192.
Choi, C.J., Dong, X.L., and Kim, B.K., Characterization of Fe and Co Nanoparticles Synthesized by Chemical Vapor Condensation, Scr. Mater., 2001, vol. 44, pp. 2225–2229.
Vavassori, P., Angeli, E., Bisero, D., et al., Role of Particle Size Distribution on the Temperature Dependence of Coercive Field in Sputtered Co/Cu Granular Films, Appl. Phys. Lett., 2001, vol. 79, no. 14, pp. 2225–2228.
Dormann, J.L., Fiorani, D., and Tronc, E., Magnetic Relaxation in Fine-Particle Systems, Adv. Chem. Phys., 1997, vol. 98, pp. 283–494.
Batlle, X. and Labarta, A., Finite-Size Effects in Fine Particles: Magnetic and Transport Properties, J. Phys. D: Appl. Phys., 2002, vol. 35, pp. 15–42.
Leslie-Pelecky, D.L. and Rieke, R.D., Magnetic Properties of Nanostructured Materials, Chem. Mater., 1996, vol. 8, pp. 1770–1783.
Jacobs, I.S. and Bean, C.P., Fine Particles, Thin Films, and Exchange Anisotropy (Effects of Finite Dimensions and Interfaces on the Basic Properties of Ferromagnets), Magnetism, Rado, G.T. and Suhl, H., Eds., New York: Academic, 1963, vol. 3, pp. 271–350.
Ji, T., Shi, H., Zhao, J., and Zhao, Y., Synthesis of Co-B/Resin Nanoparticles and Heat Treatment Effect on Their Magnetic Properties, J. Magn. Magn. Mater., 2000, vol. 212, pp. 189–194.
Mørup, S., Bødker, F., Hendriksen, P.V., and Linderoth, S., Spin-Glass-like Ordering of the Magnetic Moments of Interacting Nanosized Maghemite Particles, Phys. Rev. B: Condens. Matter, 1995, vol. 52, pp. 287–294.
Petrov, Yu.I., Klastery i malye chastitsy (Clusters and Small Clusters), Moscow: Nauka, 1986.
Wohlfarth, E.P., The Temperature Dependence of the Magnetic Susceptibility of Spin-Glasses, Phys. Lett. A, 1979, vol. 70, pp. 489–491.
Sappey, R., Vincent, E., Hadacek, N., et al., Nonmonotonic Field Dependence of the Zero-Field Cooled Magnetization Peak in Some Systems of Magnetic Nanoparticles, Phys. Rev. B: Condens. Matter, 1997, vol. 56, pp. 14551–14559.
Bødker, F., Mørup, S., and Linderoth, S., Surface Effects in Metallic Iron Nanoparticles, Phys. Rev. Lett., 1994, vol. 72, pp. 282–285.
O'Grady, K. and Bradbury, A., Particle Size Analysis in Ferrofluids, J. Magn. Magn. Mater., 1983, vol. 39, pp. 91–94.
Blanco-Mantecón, M. and O'Grady, K., Grain Size and Blocking Distributions in Fine Particle Iron Oxide Nanoparticles, J. Magn. Magn. Mater., 1999, vol. 203, pp. 50-53.
Hansen, M.F. and Mørup, S., Estimation of Blocking Temperatures from ZFC/FC Curves, J. Magn. Magn. Mater., 1999, vol. 203, pp. 214–216.
Chantrell, R.W., Walmsley, N.S., Gore, J., and Maylin, M., Theoretical Studies of the Field-Cooled and Zero-Field Cooled Magnetization of Interacting Fine Particles, J. Appl. Phys., 1999, vol. 85, pp. 4340–4342.
Peng, D.L., Sumiyama, K., Hihara, T., et al., Magnetic Properties of Monodispersed Co/CoO Clusters, Phys. Rev. B: Condens. Matter, 2000, vol. 61, pp. 3103–3109.
Garcia-Otero, J., Garcia-Bastida, A.J., and Rivas, J., Influence of Temperature of the Coercive Field of Non-Interacting Fine Magnetic Particles, J. Magn. Magn. Mater., 1998, vol. 189, pp. 377–383.
Ferrari, E.F., Nunes, W.C., and Novak, M.A., Coercivity Extrema in Melt-Spun Cu–Co Ribbons: Effects of the Magnetic Moment Distribution, J. Appl. Phys., 1999, vol. 86, pp. 3010–3014.
Saito, Y., Ma, J., Nakashima, J., and Masuda, M., Synthesis, Crystal Structure, and Magnetic Properties of Co Particles Encapsulated in Carbon Nanocapsules, Z. Phys. D: At., Mol. Clusters, 1997, vol. 40, pp. 170–172.
Bonard, J.-M., Seraphin, S., Wegrowe, J.-E., et al., Varying the Size and Magnetic Properties of Carbon-Encapsulated Cobalt Particles, Chem. Phys. Lett., 2001, vol. 343, pp. 251–257.
Sato, H., Kitakami, O., Sakurai, T., et al., Structure and Magnetism of hcp-Co Fine Particles, J. Appl. Phys., 1997, vol. 81, pp. 1858–1862.
Wernsdorfer, W., Mailly, D., and Benoit, A., Single Nanoparticles Measurement Techniques, J. Appl. Phys., 2000, vol. 87, pp. 5094–5096.
Gubin, S.P., What Is a Nanoparticle? Trends in the Development of Nanochemistry and Nanotechnology, Ross. Khim. Zh., 2000, vol. 44, pp. 23–31.
Hickey, B.J., Howson, M.A., Greig, D., and Wiser, N., Enhanced Magnetic Anisotropy Energy Density for Superparamagnetic Particles of Cobalt, Phys. Rev. B: Condens. Matter, 1996, vol. 53, pp. 32–33.
Berkowitz, A.E. and Takano, K., Exchange Anisotropy— a Review, J. Magn. Magn. Mater., 1999, vol. 200, pp. 552–570.
Gangopadhyay, S., Hadjipanayis, G.C., Sorensen, C.M., and Klabunde, K.J., Exchange Anisotropy in Oxide Passivated Co Fine Particles, J. Appl. Phys., 1993, vol. 73, pp. 6964–6966.
Kiwi, M., Exchange Bias Theory, J. Magn. Magn. Mater., 2001, vol. 234, pp. 584–595.
Hickey, B.J., Howson, M.A., Greig, D., and Wiser, N., Enhanced Magnetic Anisotropy Energy Density for Superparamagnetic Particles of Cobalt, Phys. Rev. B: Condens. Matter, 1996, vol. 53, pp. 32–33.
Respaud, M., Broto, J.M., Rakoto, H., et al., Magnetization Measurements of Fine Cobalt Particles, Physica B (Amsterdam), 1998, vol. 247, pp. 532–536.
Bucher, J.P., Douglass, D.C., and Bloomfield, L.A., Magnetic Properties of Free Cobalt Clusters, Phys. Rev. Lett., 1991, vol. 66, pp. 3052–3055.
Liu, F., Press, M.R., Khanna, S.N., and Jena, P., Magnetism and Local Order: Ab Initio Tight-Binding Theory, Phys. Rev. B: Condens. Matter, 1998, vol. 39, pp. 6914-6924.
Douglass, D.C., Cox, A.J., Bucher, J.P., and Bloom-field, L.A., Magnetic Properties of Free Cobalt and Gadolinium Clusters, Phys. Rev. B: Condens. Matter, 1993, vol. 47, pp. 12874–12889.
Hansen, M.F. and Mørup, S., Models for the Dynamics of Interacting Magnetic Nanoparticles, J. Magn. Magn. Mater., 1998, vol. 184, pp. 262–274.
Dormann, J.L., Spinu, L., Tronc, E., et al., Effect of Interparticle Interactions on the Dynamical Properties of γ-Fe2O3 Nanoparticles, J. Magn. Magn. Mater., 1998, vol. 183, pp. 255–260.
Dormann, J.L., Fiorani, D., and Tronc, E., On the Models for Interparticle Interactions in Nanoparticle Assemblies: Comparison with Experimental Results, J. Magn. Magn. Mater., 1999, vol. 202, pp. 251–267.
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Gubin, S.P., Koksharov, Y.A. Preparation, Structure, and Properties of Magnetic Materials Based on Co-Containing Nanoparticles. Inorganic Materials 38, 1085–1099 (2002). https://doi.org/10.1023/A:1020950129165
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DOI: https://doi.org/10.1023/A:1020950129165