STUDY ON REGULAR DILUTIONS OF $S=\frac{1}{2}$ IMPURITY IN S=1 CHAINS BY QUANTUM MONTE CARLO SIMULATIONS
2003 ◽
Vol 17
(31n32)
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pp. 5951-5959
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Keyword(s):
We investigate the variant regularly diluted situations of [Formula: see text] in S=1 isotropic antiferromagnetic chains by the quantum Monte Carlo loop cluster algorithm. Our results manifest significant different magnetic properties in the ground state with respect to the odd (even) host S=1 spins in one unit cell with an impurity S=1/2, and the doped system gradually transits to the pure Haldane chain in two different tendencies with the decreasing of the impurity concentrations.
2004 ◽
Vol 281
(2-3)
◽
pp. 240-246
◽
2010 ◽
Vol 133
(21)
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pp. 214301
◽