Magnetic force microscopy images of a nanometer-sized, purely organic high-spin polyradical

Makoto Miyasaka, Yuka Saito, Hiroyuki Nishide

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Magnetic force microscopy (MFM) was applied to study both the molecular image and the magnetic response of π-conjugated, non-Kekulé-, and nondisjoint-type poly(1,2-phenylenevinylene) (nondisjoint refers to a molecule in which non-bonding molecular orbitals share the same region in the molecule and a multiplet ground state is significantly stabilized) networks bearing 4-substituted di-tert-butylphenoxyl moities. The polyphenoxyl radicals 1 with molecular weights of 2.6, 9.3, and 32 kDa have a substantial stability even at room temperature and in air, and molecular sizes in the nanometer range of 10, 20, and 35 nm, respectively, with a disk-like shape. The MFM clearly shows a magnetic gradient response exactly on the position of the polyradical molecule dispersed on a graphite surface. The MFM molecular image of polyradical samples with different molecular weights and spin concentrations was examined as a nanoscale and single-molecular-based magnetic dot.

Original languageEnglish
Pages (from-to)113-117
Number of pages5
JournalAdvanced Functional Materials
Volume13
Issue number2
DOIs
Publication statusPublished - 2003 Feb

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Magnetic force microscopy
magnetic force microscopy
Molecules
molecular weight
Bearings (structural)
Molecular weight
disks (shapes)
molecules
Graphite
Molecular orbitals
Ground state
molecular orbitals
graphite
fine structure
gradients
ground state
air
room temperature
Air
Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

Magnetic force microscopy images of a nanometer-sized, purely organic high-spin polyradical. / Miyasaka, Makoto; Saito, Yuka; Nishide, Hiroyuki.

In: Advanced Functional Materials, Vol. 13, No. 2, 02.2003, p. 113-117.

Research output: Contribution to journalArticle

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