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

doi:10.1088/0953-8984/6/48/015

Fracton excitations in a diluted Heisenberg antiferromagnet near the percolation threshold: RbMn_0.39Mg_0.61F₃

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

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Abstract

Using neutron inelastic scattering techniques we investigated the magnetic excitations in a diluted Heisenberg antiferromagnet (RbMn_cMg _1-cF₃ with c=0.39) close to the percolation threshold of c_p=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.

Original language	English
Article number	015
Pages (from-to)	10543-10549
Number of pages	7
Journal	Journal of Physics Condensed Matter
Volume	6
Issue number	48
DOIs	https://doi.org/10.1088/0953-8984/6/48/015
State	Published - 1994

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

abstract = "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.",

author = "H. Ikeda and Fernandez-Baca, {J. A.} and Nicklow, {R. M.} and M. Takahashi and K. Iwasa",

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T2 - RbMn0.39Mg0.61F3

AU - Ikeda, H.

AU - Fernandez-Baca, J. A.

AU - Nicklow, R. M.

AU - Takahashi, M.

AU - Iwasa, K.

PY - 1994

Y1 - 1994

N2 - 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.

AB - 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.

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JF - Journal of Physics Condensed Matter

IS - 48

M1 - 015

ER -

Fracton excitations in a diluted Heisenberg antiferromagnet near the percolation threshold: RbMn_0.39Mg_0.61F₃

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