Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers

Mohamed B. Zakaria, Alexei A. Belik, Takahiro Nagata, Toshiaki Takei, Satoshi Tominaka, Toyohiro Chikyow

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Formation of a polycrystalline thin film from a Prussian blue analogue (PBA) on insulating substrates through a chemical method is reported here. One of the typical PBAs, Ni-Co PBA, K0.4Ni2.8[Co(CN)6]2·nH2O, was selected to demonstrate the growth process. Silicon substrate surface is functionalized through a typical self-assembled monolayer process using aminopropyltrimethoxysilane (APTMS) to form relatively robust interface with PBAs through the coordination bonds with the terminal amino-groups of APTMS. Then, these amino-functionalized silicon wafers are used as anchors for the controlled assembly of homogeneous Ni-Co PBA thin films which shows several kinds of pyramidal structures on the surface. The obtained thin films exhibit paramagnetic properties at room temperature without a negative magnetization.

Original languageEnglish
Article number165276
JournalJournal of Magnetism and Magnetic Materials
Volume486
DOIs
Publication statusPublished - 2019 Sep 15
Externally publishedYes

Keywords

  • Anchoring
  • Magnetic films
  • Polycrystalline
  • Prussian blue analogue
  • Self-assembly

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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