Abstract
High-field magnetization process in a rhombohedrally stacked triangular lattice antiferromagnet, CuFeO 2, is studied on powder and field-oriented samples using pulse magnets up to 100 T. Magnetization anomalies are successively observed at 8.0, 13.0, 22.0, 26.0, 42 and 70 T. The complicated magnetization process originates from a subtle balance of interactions in the frustrated situation. The results are discussed from the energy considerations of classical Ising triangular lattice antiferromagnets with the interactions up to the third neighbor to estimate the relevant exchange parameters.
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