Fractal dimension in percolating Heisenberg antiferromagnets

S. Itoh, R. Kajimoto, M. A. Adams, M. J. Bull, K. Iwasa, N. Aso, H. Yoshizawa, T. Takeuchi

Research output: Contribution to journalArticlepeer-review

Abstract

We investigated static and dynamical properties in the three-dimensional percolating Heisenberg antiferromagnets, RbMnc Mg1 - c F3, with the magnetic concentration close to the percolation threshold, cP = 0.312, around the superlattice point well below TN. In neutron diffraction experiment, the wave number dependence of the elastic scattering component was well fitted to q- x. Magnetic fractons were also studied using inelastic neutron scattering, and the observed fractons showed the dispersion relation of qz. The determined exponents, x = 2.43 ± 0.05 and z = 2.5 ± 0.1, were in good agreement with the fractal dimension (Df = 2.48).

Original languageEnglish
Pages (from-to)1549-1551
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • Antiferromagnet
  • Fractal
  • Fracton
  • Neutron scattering
  • Percolation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Fractal dimension in percolating Heisenberg antiferromagnets'. Together they form a unique fingerprint.

Cite this