Abstract
We examine the properties of the Bethe ansatz solvable two-and three-leg spin-S ladders. These models include Heisenberg rung interactions of arbitrary strength and thus capture the physics of the spin-S Heisenbergladders for strong rung coupling. The discrete values derived for the magnetization plateaux are seen to fit with the general prediction based on the Lieb-Schultz-Mattis theorem. We examine the magnetic phase diagram of thespin-1 ladder in detail and find an extended magnetization plateau at the fractional value formula presented in agreement with the experimental observation for the organic polyradical spin-1 ladder compound BIP-TENO.
| Original language | English |
|---|---|
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 68 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
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