Phys. Rev. B 67, 064419 (2003) [11 pages]Phase diagrams of spin ladders with ferromagnetic legsReceived 30 September 2002; published 27 February 2003 The low-temperature properties of the spin S=1/2 ladder with anisotropic ferromagnetic legs are studied using the continuum limit Bosonization approach. The weak-coupling ground-state phase diagram of the model is obtained for a wide range of coupling constants and several unconventional gapless “spin liquid” phases are shown to exist for ferromagnetic coupling. The behavior of the ladder system in the vicinity of the ferromagnetic instability point is discussed in detail. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.67.064419
DOI:
10.1103/PhysRevB.67.064419
PACS:
75.10.Jm
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.