Fracton excitations in a diluted Heisenberg antiferromagnet near the percolation threshold: RbMn0.39Mg0.61F3

H. Ikeda, J. A. Fernandez-Baca, R. M. Nicklow, M. Takahashi, K. Iwasa

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Using neutron inelastic scattering techniques we investigated the magnetic excitations in a diluted Heisenberg antiferromagnet (RbMncMg 1-cF3 with c=0.39) close to the percolation threshold of cp=0.312. No indication of propagating spin waves was observed throughout the Brillouin zone, but a broad peak superimposed on Ising-cluster excitations was observed. The origin of this broad peak is attributed to the excitation of fractons in a percolating network.

本文言語English
論文番号015
ページ(範囲)10543-10549
ページ数7
ジャーナルJournal of Physics: Condensed Matter
6
48
DOI
出版ステータスPublished - 1994 12 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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