Universal Behavior of the Spin-Echo Decay Rate in La2CuO4
Abstract
We present a theoretical expression for the spin-echo decay rate, 1/T2G, in the quantum-critical regime of square lattice quantum antiferromagnets. Our results are in good agreement with recent experimental data by Imai et al. [Phys. Rev. Lett. v.71, 1254 (1993)] for La2CuO4.
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