Hermele, Michael and Senthil, T and Fisher, Matthew PA (2005) Algebraic spin liquid as the mother of many competing orders. In: Physical Review B, 72 (10).
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We study the properties of a class of two-dimensional interacting critical states-dubbed algebraic spin liquids-that can arise in two-dimensional quantum magnets. A particular example that we focus on is the staggered flux spin liquid, which plays a key role in some theories of underdoped cup rate superconductors. We show that the low-energy theory of such states has much higher symmetry than the underlying microscopic spin system. This symmetry has remarkable consequences, leading in particular to the unification of a number of seemingly unrelated competing orders. The correlations of these orders-including, in the staggered flux state, the Neel vector, and the order parameter for the columnar and box valence-bond solid states-all exhibit the same slow power-law decay. Implications for experiments in the pseudogap regime of the cuprates and for numerical calculations on model systems are discussed.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belongs to American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||04 Nov 2005|
|Last Modified:||19 Sep 2010 04:20|
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