Gapless Spin Excitations in the S=1/2 Kagome- and Triangular-Lattice Heisenberg Antiferromagnets
classification
❄️ cond-mat.str-el
cond-mat.stat-mech
keywords
antiferromagnetsgaplessheisenbergkagome-spintriangular-latticeanalysisbehaviour
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The $S=1/2$ kagome- and triangular-lattice Heisenberg antiferromagnets are investigated using the numerical exact diagonalization and the finite-size scaling analysis. The behaviour of the field derivative at zero magnetization is examined for both systems. The present result indicates that the spin excitation is gapless for each system.
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