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- W2040809545 abstract "Abstract The far-infrared absorption due to the out-of-plane k=0 magnon mode of the easy-plane planar antiferromagnet K2FeF4 was investigated in magnetic fields parallel and perpendicular to the tetragonal crystal axis. Comparing the experimental data with the results of the spin-wave approximation leads the effective g-factors: g∥ = 2.4 and g⊥ = 2.1. With the external magnetic field parallel to the magnetic moments in the easy plane, a transition of the spins take place within the easy plane to a direction perpendicular to the direction of the magnetic field. From this “spin-flop” behaviour the in-plane anisotropy could be estimated (guBHA = 0.11 cm−1. This value leads to an excitation energy of the k=0 in-plane magnon mode of h omega; = 4.5 cm −1 ." @default.
- W2040809545 created "2016-06-24" @default.
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- W2040809545 date "1980-09-01" @default.
- W2040809545 modified "2023-10-18" @default.
- W2040809545 title "Magnetic field behaviour of the out-of-plane k=0 magnon mode in the 2-D antiferromagnet K2FeF4" @default.
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- W2040809545 doi "https://doi.org/10.1016/0038-1098(80)91037-6" @default.
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