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Homogeneous versus spiral phases of hole-doped antiferromagnets: A systematic effective field theory investigation
Using the low-energy effective field theory for magnons and holes---the condensed matter analog of baryon chiral perturbation theory for pions and nucleons in QCD---we study different phases of doped antiferromagnets. We systematically investigate configurations of the staggered magnetization that provide a constant background field for doped holes. The most general …