Spin Dynamics of La₂CuO₄ and the Two-Dimensional Heisenberg Model
classification
supr-con
cond-mat.supr-con
keywords
modelheisenbergratespinanalyticcalculatedcarlocompared
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The spin-lattice relaxation rate $1/T_1$ and the spin echo decay rate $1/T_{2G}$ for the 2D Heisenberg model are calculated using quantum Monte Carlo and maximum entropy analytic continuation. The results are compared to recent experiments on La$_2$CuO$_4$, as well as predictions based on the non-linear $\sigma$-model.
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