Phys. Rev. B 77, 205121 (2008) [16 pages]Topological order, dimerization, and spinon deconfinement in frustrated spin laddersReceived 17 December 2007; published 22 May 2008 We consider topological order and dimer order in several frustrated spin ladder models, which are related to higher-dimensional models of current interest; we also address the occurrence of fractionalized phases with deconfined spinon excitations in these models. Combining results obtained with both analytic and numerical methods, we discuss how the occurrence of dimerized or fractionalized phases is dictated by the system’s geometry. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.77.205121
DOI:
10.1103/PhysRevB.77.205121
PACS:
71.30.+h, 71.10.Fd
|
|
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.