+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Antiferromagnetism, charge density wave, and d-wave superconductivity in the extended t-J-U model: role of intersite Coulomb interaction and a critical overview of renormalized mean field theory



Antiferromagnetism, charge density wave, and d-wave superconductivity in the extended t-J-U model: role of intersite Coulomb interaction and a critical overview of renormalized mean field theory



Journal of Physics. Condensed Matter 29(36): 365602



In the first part of the paper, we study the stability of antiferromagnetic (AF), charge density wave (CDW), and superconducting (SC) states within the t-J-U-V model of strongly correlated electrons by using the statistically consistent Gutzwiller approximation (SGA). We concentrate on the role of the intersite Coulomb interaction term V in stabilizing the CDW phase. In particular, we show that the charge ordering appears only above a critical value of V in a limited hole-doping range δ. The effect of the V term on SC and AF phases is that a strong interaction suppresses SC, whereas the AF order is not significantly influenced by its presence. In the second part, separate calculations for the case of a pure SC phase have been carried out within an extended approach (the diagrammatic expansion for the Gutzwiller wave function, DE-GWF) in order to analyze the influence of the intersite Coulomb repulsion on the SC phase with the higher-order corrections included beyond the SGA method. The upper concentration for the SC disappearance decreases with increasing V, bringing the results closer to experiment. In appendices A and B we discuss the ambiguity connected with the choice of the Gutzwiller renormalization factors within the renormalized mean filed theory when either AF or CDW orders are considered. At the end, we overview briefly the possible extensions of the current models to put descriptions of the SC, AF, and CDW states on equal footing.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 059378181

Download citation: RISBibTeXText

PMID: 28627506

DOI: 10.1088/1361-648x/aa7a21


Related references

On Antiferromagnetism, Charge Density Wave, and Superconductivity in the Extended Hubbard Model Studied by Means of the Slave-Boson Method. Physica Status Solidi 180(2): 401-409, 1993

Single-gap s-Wave superconductivity near the charge-density-wave quantum critical point in CuxTiSe2. Physical Review Letters 99(10): 107001, 2007

Coexistence of f-wave superconductivity, charge order, and spin antiferromagnetism around nonmagnetic impurities in Na0.33CoO2.1.3H2O. Physical Review Letters 96(22): 227001, 2006

Critical Role of the Exchange Interaction for the Electronic Structure and Charge-Density-Wave Formation in TiSe_{2}. Physical Review Letters 119(17): 176401, 2017

Effect of the intersite Coulomb interaction in the extended Hubbard model. Physical Review. B Condensed Matter 46(6): 3668-3671, 1992

Single-band Hubbard model for superconductivity and charge-density-wave order in the bismuth oxide superconductors. Physical Review. B Condensed Matter 48(17): 13098-13103, 1993

Phase Hamiltonian and depinning electric field in the charge-density wave and the spin-density wave. Physical Review. B Condensed Matter 42(1): 655-659, 1990

Superconductivity and antiferromagnetism for an extended Hubbard Hamiltonian: Role of correlated hopping in a single-band model. Physical Review. B Condensed Matter 47(21): 14417-14424, 1993

Coexistence of superconductivity and a charge density wave in LaPt2(Si1-x Ge x )2 (0 ⩽ x ⩽ 0.5). Journal of Physics. Condensed Matter 28(19): 195702, 2016

Charge-density wave with imperfect nesting and superconductivity. Physical Review. B Condensed Matter 41(10): 6387-6393, 1990

Charge-density wave with imperfect nesting and superconductivity. II. Physical Review. B Condensed Matter 43(1): 175-180, 1991

Coexistence of s-wave superconductivity and antiferromagnetism. Physical Review Letters 91(5): 056401, 2003

Localized excitations in competing bond-order-wave, charge-density-wave, and spin-density-wave systems. Physical Review. B Condensed Matter 48(15): 10788-10803, 1993

Coexistence of bulk superconductivity and charge density wave in CuxZrTe3. Physical Review Letters 106(24): 246404, 2011

Competition between charge- and spin-density-wave order and superconductivity in La(1.875)Ba(0.125-x)Sr(x)CuO(4). Physical Review Letters 88(16): 167008, 2002