scholarly journals Wentzel-Bardeen singularity and phase diagram for interacting electrons coupled to acoustic phonons in one dimension

1994 ◽  
Vol 50 (16) ◽  
pp. 12160-12163 ◽  
Author(s):  
Daniel Loss ◽  
Thierry Martin
Keyword(s):  
Phase Diagram ◽  
One Dimension ◽  
Acoustic Phonons ◽  
Interacting Electrons

scholarly journals Spin susceptibility of interacting electrons in one dimension: Luttinger liquid and lattice effects

1999 ◽  
Vol 12 (3) ◽  
pp. 351-365 ◽  
Author(s):  
H. Nélisse ◽  
C. Bourbonnais ◽  
H. Touchette ◽  
Y.M. Vilk ◽  
A.-M.S. Tremblay
Keyword(s):  
Luttinger Liquid ◽  
Spin Susceptibility ◽  
One Dimension ◽  
Lattice Effects ◽  
Interacting Electrons

PHASE DIAGRAM OF DOUBLE EXCHANGE MODEL WITH ANTIFERROMAGNETIC COUPLING FOR LOCALIZED t2g SPINS IN ONE DIMENSION REVISITED

2005 ◽  
Vol 19 (24) ◽  
pp. 3731-3743 ◽  
Author(s):  
Q. L. ZHANG
Keyword(s):  
Phase Diagram ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Large Scale ◽  
Double Exchange ◽  
Exchange Model ◽  
One Dimension ◽  
Antiferromagnetic Coupling ◽  
Single Orbit ◽  
Superexchange Coupling

The phase diagram of the single-orbit double exchange model for manganites with ferromagnetic Hund coupling between mobile eg electrons and spins of localized t2g electrons as well as antiferromagnetic superexchange coupling between t2g electrons is investigated with a large scale Monte Carlo simulation in one dimension. The phase boundary is determined based on the internal energy, the electron density and the structure factor. In particular, low-temperature properties at quarter filling are studied in detail.

EFFECT OF CORRELATED-HOPPING INTERACTION ON A ONE-DIMENSIONAL EXTENDED HUBBARD MODEL WITH SPIN-EXCHANGE INTERACTION

2012 ◽  
Vol 26 (07) ◽  
pp. 1150044 ◽  
Author(s):  
HANQIN DING ◽  
JUN ZHANG
Keyword(s):  
Phase Diagram ◽  
Nearest Neighbor ◽  
Spin Exchange ◽  
One Dimensional ◽  
Body Interaction ◽  
Hartree Fock ◽  
Interacting Electrons ◽  
1D Model ◽  
Isotropic Exchange ◽  
Three Body

By using the field-theoretical techniques combining bosonization with renormalization group, we study a one-dimensional (1D) model of interacting electrons with on-site repulsion (U > 0), nearest-neighbor (nn) exchange (J) and correlated-hopping (t2, t3) interactions at weak coupling. In the case of a half-filled band, the two-body interaction t2 does not influence phase diagram of the model, while the presence of three-body interaction t3 makes the physics of the system highly non-trivial. By a Hartree–Fock decoupling, the effects of t3 bring about hopping of pairs, V-like (nn Coulomb interaction) and isotropic exchange terms in the reduced model Hamiltonian. Interestingly, a negative t3 provides a possibility for the occurrence of the triplet superconductivity in 1D system with purely repulsive interactions (U, J > 0). The ground state phase diagram including the insulating and superconducting phases is discussed analytically.

Phase Diagram of the Two-Channel Kondo Lattice Model in One Dimension

2005 ◽  
Vol 94 (14) ◽  
Author(s):  
T. Schauerte ◽  
D. L. Cox ◽  
R. M. Noack ◽  
P. G. J. van Dongen ◽  
C. D. Batista
Keyword(s):  
Phase Diagram ◽  
Lattice Model ◽  
Kondo Lattice ◽  
One Dimension ◽  
Kondo Lattice Model

scholarly journals Boundary Effects on Spectral Properties of Interacting Electrons in One Dimension

1996 ◽  
Vol 76 (9) ◽  
pp. 1505-1508 ◽  
Author(s):  
Sebastian Eggert ◽  
Henrik Johannesson ◽  
Ann Mattsson
Keyword(s):  
Spectral Properties ◽  
Boundary Effects ◽  
One Dimension ◽  
Interacting Electrons
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