Superstructures of self-assembled cobalt nanocrystals

Youhui Gao, Yuping Bao, Michael Beerman, Akira Yasuhara, Daisuke Shindo, Kannan M. Krishnan

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Self assembly behavior of the supermagnetic cobalt (Co) nanocrystals (NC) was investigated by applying magnetic fields. It was observed that interplay between dipolar interaction and applied magnetic fields produced the three-dimensional superstructure of the spherical Co NC. It was also observed that length to width ratio of grain-like superstructure enhanced greatly by increasing the particle size to about 10 nm. The results show that self assembly of NC is helpful in the preparation mesomagnets and magnetic quantum devices.

Original languageEnglish
Pages (from-to)3361-3363
Number of pages3
JournalApplied Physics Letters
Issue number17
Publication statusPublished - 2004 Apr 26

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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