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cond-mat.str-el2000★ 19 cited
Spin-1 Antiferromagnetic Heisenberg Chains in an External Staggered Field
Elisa Ercolessi, Giuseppe Morandi, Pierbiagio Pieri +1
We present in this paper a nonlinear sigma-model analysis of a spin-1 antiferromagnetic Heisenberg chain in an external commensurate staggered magnetic field. After rediscussing br…
cond-mat.str-el2000★ 10 cited
Integer-spin Heisenberg Chains in a Staggered Magnetic Field. A Nonlinear -Model Approach
Elisa Ercolessi, Giuseppe Morandi, Pierbiagio Pieri +1
We present here a nonlinear sigma-model (NLM) study of a spin-1 antiferromagnetic Heisenberg chain in an external commensurate staggered magnetic field. We find, already at the…