Charge Ordering Under a Magnetic Field in the Extended Hubbard Model
Le, Duc Anh · Hoang, Anh Tuan · Nguyen, Toan Thang
Original · EN
We study the charge ordering behavior under a magnetic field H in the extended Hubbard model within the coherent potential approximation. At quarter filling, for small H we find that the relative variation of critical temperature is quadratic with the coefficient α smaller than the one for conventional spin-Peierls systems. For intermediate field, a melting of the charge ordering on decreasing temperature under fixed H at various band filling is found.
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