What is Y state? (IMAGE)
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Schematic illustration of the “Y state” in a triangular-lattice antiferromagnetOn a triangular lattice, neighboring spins tend to point in opposite directions, but it is impossible for all three spins on a triangle to satisfy this condition simultaneously, resulting in a competition known as “frustration.” In the Y state, the spins form three groups (sublattices): one points strongly upward, while the other two tilt downward, producing a characteristic Y-shaped magnetic order. Our study shows that this Y state remains stable even in the strongly easy-axis anisotropic regime.
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Masaaki Nakamura
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