Comment on "Critical spin dynamics of the 2D quantum Heisenberg antiferromagnets: Sr2CuO2Cl2 and Sr2Cu3O4Cl2"
Sachdev, Subir · Starykh, Oleg A.
Original · EN
We compare the neutron measurements of Kim et al. (cond-mat/0012239) on two-dimensional, S=1/2 antiferromagnets with the continuum quasiclassical theory of S. Sachdev and O.A. Starykh (cond-mat/9904354). The damping of the lowest energy spin excitations is characterized by a dimensionless number whose temperature dependence was predicted to be determined entirely by that of the uniform spin susceptibility. Theory and experiment are consistent with each other.
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