A model for correlated electrons in a lattice with local additional spin-1 degrees of freedom inducing constrained hopping is studied both in the low density limit and at quarter filling. We show that in both 1D and 2D two particles form a bound state even in the presence of a repulsive U
Phase Diagram of Correlated Electrons in a Lattice of Berry Phase Molecules / Santoro, Giuseppe Ernesto; Marco, Airoldi; Nicola, Manini; Erio, Tosatti; A., Parola. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 74:20(1995), pp. 4039-4042. [10.1103/PhysRevLett.74.4039]
Phase Diagram of Correlated Electrons in a Lattice of Berry Phase Molecules
Santoro, Giuseppe Ernesto;
1995-01-01
Abstract
A model for correlated electrons in a lattice with local additional spin-1 degrees of freedom inducing constrained hopping is studied both in the low density limit and at quarter filling. We show that in both 1D and 2D two particles form a bound state even in the presence of a repulsive UFile in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
Santoro_PhysRevLett.74.4039_1995.pdf
non disponibili
Licenza:
Non specificato
Dimensione
215.99 kB
Formato
Adobe PDF
|
215.99 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
