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cond-mat.str-el1998
A new model to describe the physics of VOPO
A. Weisse, G. Bouzerar, H. Fehske
In the past different models for the magnetic salt vanadyl pyrophosphate (VOPO) were discussed. Neither a spin ladder nor an alternating chain are capable to describe recently meas…
cond-mat.str-el1998
Peierls instability and optical response in the one--dimensional half--filled Holstein model of spinless fermions
A. Weiße, H. Fehske
The effects of quantum lattice fluctuations on the Peierls transition are studied within the one--dimensional Holstein molecular crystal model by means of exact diagonalization met…