Temperature dependence of the Hall response in doped antiferromagnets - art. no. 020408

摘要

Using the finite-temperature Lanczos method, the frequency-dependent Hall response was calculated numerically for the t-J model on the square lattice and on ladders. At low doping, both the high-frequency R-H(*) and the dc Hall coefficient R-H(0) follow qualitatively similar behavior at higher temperatures, being holelike for T>T(s)approximate to1.5J and weakly electronlike for T0. [References: 21]