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 language | English |
---|---|
Pages (from-to) | 1549-1551 |
Number of pages | 3 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 310 |
Issue number | 2 SUPPL. PART 2 |
DOIs | |
Publication status | Published - 2007 Mar |
Externally published | Yes |
Keywords
- Antiferromagnet
- Fractal
- Fracton
- Neutron scattering
- Percolation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics