Hole-hole superconducting pairing in the<i>t</i>-<i>J</i>model induced by spin-wave exchange

Belinicher, V. I.; Chernyshev, A. L.; Dotsenko, A. V.; Sushkov, O. P.

doi:10.1103/physrevb.51.6076

Cited by 68 publications

(62 citation statements)

References 38 publications

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“…The energy splitting between the d-and g-wave solutions has been investigated numerically in the Ref. [11]. The g-wave solution disappears and only d-wave one survives as soon as the hole dispersion is degenerate along the face of the magnetic Brillouin zone.…”

Section: Introductionmentioning

confidence: 99%

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The role of g-wave pairing and Josephson tunneling in high-Tc cuprate superconductors

Shevchenko¹,

Sushkov²

1998

Physica C: Superconductivity

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The implications of the two-pocket Fermi surface for macroscopic quantum phenomena are considered. We demonstrate that in the case of the two-pocket Fermi surface the g-wave pairing is closely related to the d-wave one. As a result two macroscopic condensates arise. The Josephson tunneling for such twocomponent system has very special properties. We prove that the presence of the g-wave does not contradict the existing experimental data on tunneling. We also discuss the possible ways to experimentally reveal the g-wave component.

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Section: Introductionmentioning

confidence: 99%

“…[7,8,9]), but basically it is the t − J model. Superconducting pairing in the t − J model induced by spin-wave exchange has been considered in the papers [10,11]. It was demonstrated [10] that there is an infinite set of solutions for the superconducting gap.…”

Section: Introductionmentioning

confidence: 99%

The role of g-wave pairing and Josephson tunneling in high-Tc cuprate superconductors

Shevchenko¹,

Sushkov²

1998

Physica C: Superconductivity

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“…Just as we determined the holon dispersion in the holon metal phase by referring to previous work in the proximate AF metal, we can determine the nature of the pair wavefunction by extrapolating from the state with co-existing antiferromagnetism and superconductivity in Fig 1. The latter state was studied by Sushkov and collaborators [18,19], and they found that holes paired with d-wave symmetry. Hence the AF+dSC state contexts [11,12,13,20].…”

mentioning

confidence: 99%

“…The AF+dSC state also has d-wave superconductivity and was described in Ref. [18,19]. For the cuprates, we propose that the ACL phase above is a holon-hole metal, while the superconducting ACL is the holon-hole superconductor.…”

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confidence: 99%

Algebraic charge liquids

et al. 2007

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Soon after the discovery of high temperature superconductivity, Anderson [6] presented influential ideas on its connection to a novel type of insulator, in which the electron falls apart into emergent fractional particles which separately carry its spin and charge. These ideas have been extensively developed [7], and can explain the nodal zero-energy electron states in the superconductor. However, it is now known that the actual cuprate insulators are not of this type, and instead have conventional antiferromagnetic order, with the electron spins aligned in a checkerboard pattern on the square lattice. A separate set of ideas [8] take the presence of antiferromagnetic order in the insulator seriously, but require a specific effort to induce zero energy nodal electrons in the superconductor.Our theory of algebraic charge liquids (ACLs) uses the the recently developed theoretical

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“…Let us now outline the mechanism of pairing induced by spin-wave exchange in the t-J model [11,12]. The t-J model is defined by the Hamiltonian…”

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confidence: 99%

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

Dotsenko

Sushkov

1996

Physica C: Superconductivity

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We study the behaviour of the electronic chemical potential in YBa 2 Cu 3 O 6+δ near the superconducting transition using the spin-wave exchange theory of pairing. We find that the experimental value of the jump in the temperature derivative of the chemical potential is inconsistent with the theoretical value calculated under the assumption of constant hole concentration. It is suggested that charge transfer between chains and planes takes place and corresponding calculations are done.Typeset using REVT E X 1

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Hole-hole superconducting pairing in thet-Jmodel induced by spin-wave exchange

Cited by 68 publications

References 38 publications

The role of g-wave pairing and Josephson tunneling in high-Tc cuprate superconductors

The role of g-wave pairing and Josephson tunneling in high-Tc cuprate superconductors

Algebraic charge liquids

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

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