DOI: 10.1073/pnas.0508877103. Magnetic superlattices and their nanoscale phase transition effects

Magnetic superlattices and their nanoscale phase transition effects

10.1073/pnas.0508877103

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

The systematic assembly of nanoscale constituents into highly ordered superlattices is of significant interest because of the potential of their multifunctionalities and the discovery of new collective properties. However, successful observations of such superlattice-associated nanoscale phenomena are still elusive. Here, we present magnetic superlattices of Co and Fe 3 O 4 nanoparticles with multidimensional symmetry of either AB (NaCl) or AB 2 (AlB 2 ). The discovery of significant enhancement (≈25 times) of ferrimagnetism is further revealed by forming previously undescribed superlattices of magnetically soft–hard Fe 3 O 4 @CoFe 2 O 4 through the confined geometrical effect of thermally driven intrasuperlattice phase transition between the nanoparticulate components.

Bibliography

Cheon, J., Park, J.-I., Choi, J., Jun, Y., Kim, S., Kim, M. G., Kim, Y.-M., & Kim, Y. J. (2006). Magnetic superlattices and their nanoscale phase transition effects. Proceedings of the National Academy of Sciences, 103(9), 3023â3027.

Authors 8

Jinwoo Cheon (first)
Jong-Il Park (additional)
Jin-sil Choi (additional)
Young-wook Jun (additional)
Sehun Kim (additional)
Min Gyu Kim (additional)
Young-Min Kim (additional)
Youn Joong Kim (additional)

References 21 Referenced 91

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Dates

Type	When
Created	19 years, 6 months ago (Feb. 21, 2006, 11:03 p.m.)
Deposited	3 years, 4 months ago (April 12, 2022, 2:10 p.m.)
Indexed	1 week, 3 days ago (Aug. 23, 2025, 1:02 a.m.)
Issued	19 years, 6 months ago (Feb. 21, 2006)
Published	19 years, 6 months ago (Feb. 21, 2006)
Published Online	19 years, 6 months ago (Feb. 21, 2006)
Published Print	19 years, 6 months ago (Feb. 28, 2006)

Funders 0

None

BibTeX

@article{Cheon_2006, title={Magnetic superlattices and their nanoscale phase transition effects}, volume={103}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0508877103}, DOI={10.1073/pnas.0508877103}, number={9}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Cheon, Jinwoo and Park, Jong-Il and Choi, Jin-sil and Jun, Young-wook and Kim, Sehun and Kim, Min Gyu and Kim, Young-Min and Kim, Youn Joong}, year={2006}, month=feb, pages={3023–3027} }

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