Synthetic magnetic opals

Amita Gupta, Alexei Yu Ganin, Parmanand Sharma, Vikrant Agnihotri, L. M. Belova, K. V. Rao, Mikhail E. Kozlov, A. A. Zakhidov, R. H. Baughman

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


We present studies of novel nanocomposites of BiNi impregnated into the structure of opals as well as inverse opals. Atomic force microscopy and high resolution elemental analyses show a highly ordered structure and uniform distribution of the BiNi filler in the matrix. These BiNi-based nanocomposites are found to exhibit distinct ferromagnetic-like ordering with transition temperature of about 675 K. As far as we know there exists no report in literature on any BiNi compound which is magnetic.

Original languageEnglish
Pages (from-to)1051-1059
Number of pages9
JournalPramana - Journal of Physics
Issue number5-6
Publication statusPublished - 2002
EventInternational Symposium on Advances in Superconductivity and Magnetism: Materials, Mechanisms and Devices - Mangalagangothri, India
Duration: 2001 Sept 252001 Sept 28


  • Atomic force microscopy
  • BiNi impregnated opals
  • Ferromagnetism
  • Nanocomposites


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