We make use of the Hubbard model to investigate the conditions for the existence and the stability of a spin-density wave in a system with a chemically induced charge-density wave. We And that the transition between the paramagnetic and the antiferromagnetic ground state is discontinuous both in the weak-coupling and strong-coupling regimes.
Spin-density-wave transition in systems with chemical dimerization / V., Tugushev; Caprara, Sergio; M., Avignon. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - 54:8(1996), pp. 5466-5470. [10.1103/physrevb.54.5466]
Spin-density-wave transition in systems with chemical dimerization
CAPRARA, SERGIO;
1996
Abstract
We make use of the Hubbard model to investigate the conditions for the existence and the stability of a spin-density wave in a system with a chemically induced charge-density wave. We And that the transition between the paramagnetic and the antiferromagnetic ground state is discontinuous both in the weak-coupling and strong-coupling regimes.File allegati a questo prodotto
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