ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Fourier-transform infrared spectroscopy measurements have been performed on the three-dimensional dilute antiferromagnet FexZn1−xF2 with x=0.99–0.58 in the far infrared (FIR) region. The FIR spectra are analyzed taking into account the ligand field and the local exchange interaction probability with J1–J3; |J1|, |J3|(very-much-less-than)|J2|, where J1, J2, and J3 are the nearest neighbor, second nearest neighbor, and third nearest neighbor exchange interaction constants, respectively. The concentration dependence of the FIR spectra at low temperature is qualitatively well reproduced by our analysis, though some detailed structure remains unexplained. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1358339
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