As an extension of previous studies, we consider the magnetic susceptibilities of a coupled spinchain model at low temperature and of a more realistic model having a t - J ladder structure at zero temperature. The magnetic susceptibilities for both models are obtained numerically when the coupling constant is greater than its critical value. In this region, the ladders behave as a single chain for H < Hc and as two independent chains for H > Hc, showing a divergence at Hc. This divergence is expected to smear out at a finite temperature.
|Number of pages||6|
|Journal||Journal of the Korean Physical Society|
|Issue number||4 SUPPL. Part 1|
|State||Published - Oct 2001|