1. Главная
  2. Ресурсы
  3. Библиотечный поиск
One- and Two-ParticleCorrelation Functionsin the ClusterPerturbation Theoryfor Cuprates :научное издание Kuz’min Valerii I.Nikolaev Sergey V.Korshunov Maxim M.2023 год

One- and Two-Particle Correlation Functions in the Cluster Perturbation Theory for Cuprates : научное издание
статья из журнала

Дополнительные ссылки: eLibrary
База данных: Каталог библиотеки СФУ
Библиографическое описание: One- and Two-Particle Correlation Functions in the Cluster Perturbation Theory for Cuprates : научное издание / Valerii I. Kuz’min [et al.]. - Текст : непосредственный // Materials. - 2023. - Т.16, №13. - P. 4640. - ISSN 1996-1944, DOI 10.3390/ma16134640.
Аннотация: <jats:p>The physics of high-Tc superconducting cuprates is obscured by the effect of strong electronic correlations. One way to overcome this problem is to seek an exact solution at least within a small cluster and expand it to the whole crystal. Such an approach is at the heart of cluster perturbation theory (CPT). Here, we developed CPT for the dynamic spin and charge susceptibilities (spin-CPT and charge-CPT), with the correlation effects explicitly taken into account by the exact diagonalization. We applied spin-CPT and charge-CPT to the effective two-band Hubbard model for the cuprates obtained from the three-band Emery model and calculated one- and two-particle correlation functions, namely, a spectral function and spin and charge susceptibilities. The doping dependence of the spin susceptibility was studied within spin-CPT and CPT-RPA, that is, the CPT generalization of the random phase approximation (RPA). In the underdoped region, both our methods resulted in the signatures of the upper branch of the spin excitation dispersion with the lowest excitation energy at the (π,π) wave vector and no presence of low-energy incommensurate excitations. In the high doping region, both methods produced a low energy response at four incommensurate wave vectors in qualitative agreement with the results of the inelastic neutron scattering experiments on overdoped cuprates.</jats:p>
Год издания: 2023
Авторы: Kuz’min Valerii I. , Nikolaev Sergey V. , Korshunov Maxim M. , Ovchinnikov Sergey G.
Издательство: Basel
Источник: Materials
Выпуск: Т.16, №13
Номера страниц: 4640
Держатель оригинала документа: Department of Theoretical Physics and Wave Phenomena, Siberian Federal University, Svobodny Prospect 79, 660041 Krasnoyarsk, Russia, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 660036 Krasnoyarsk, Russia
Количество экземпляров:
Твёрдая копия издания отсутствует в фонде библиотеки

Похожие публикации

Spin Response inHole-Doped CupratesWithin the ClusterPerturbation Theory Ovchinnikov S.G.Kuz’min V.I.Nikolaev S.V.2024 год

Spin Response in Hole-Doped Cuprates Within the Cluster Perturbation Theory : статья из журнала

  • Ovchinnikov S.G. и др.
  • 2024 год

Green Function of Quantum Particle Moving in Two-dimensional Annular Potential : статья из журнала

  • Brahim Benali и др.
  • 2023 год
Spin and ChargeSusceptibilities ofthe Two-Orbital Modelwithin the ClusterPerturbation Theoryfor Fe-BasedMaterials Nikolaev S.V.Korshunov M.M.2016 год

Spin and Charge Susceptibilities of the Two-Orbital Model within the Cluster Perturbation Theory… : научное издание

  • Nikolaev S.V. и др.
  • 2016 год
Cluster perturbationtheory for 2d isingmodel Ivantsov Ilya D.Ovchinnikov Sergey G.2015 год

Cluster perturbation theory for 2d ising model : статья из журнала

  • Ivantsov Ilya D. и др.
  • 2015 год

Cluster Perturbation Theory for 2d Ising Model : статья из журнала

  • Ivantsov Ilya и др.
  • 2015 год
Cluster Size andShape Effect on theElectronic Structureof the Hubbard ModelWithin theNorm-ConservingCluster… Krinitsyn A.Nikolaev S.Ovchinnikov S.2014 год

Cluster Size and Shape Effect on the Electronic Structure of the Hubbard Model Within the Norm… : статья из журнала

  • Krinitsyn A. и др.
  • 2014 год
Spectral Propertiesof the Bose-HubbardModel Within theCluster PerturbationTheory in X-OperatorsRepresentation Kudashkin KirillNikolaev SergeyOvchinnikov Sergey2017 год

Spectral Properties of the Bose-Hubbard Model Within the Cluster Perturbation Theory in X… : статья из журнала

  • Kudashkin Kirill и др.
  • 2017 год
Comparison of theelectronic structureof the Hubbard and t- J models within thecluster perturbationtheory Kuz'Min V.I.Nikolaev S.V.Ovchinnikov S.G.2014 год

Comparison of the electronic structure of the Hubbard and t - J models within the cluster… : статья из журнала

  • Kuz'Min V.I. и др.
  • 2014 год

Показать ещё

Effect of cantedantiferromagneticorder on theelectronic structurein the t-J* modelwithin the cluster… Kuz'min V.I.Nikolaev S.V.Ovchinnikov S.G.2016 год

Effect of canted antiferromagnetic order on the electronic structure in the t-J* model within the… : статья из журнала

  • Kuz'min V.I. и др.
  • 2016 год
The calculation ofthe Fermi surfacewith complex topologyfrom norm-conservingcluster perturbationtheory for… Ovchinnikov S.G.Nikolaev S.V.2011 год

The calculation of the Fermi surface with complex topology from norm-conserving cluster… : научное издание

  • Ovchinnikov S.G. и др.
  • 2011 год
The strong electroncorrelation effectsin XAFS spectra ofHTSC cuprates Avramov P.V.Ovchinnikov S.G.1997 год

The strong electron correlation effects in XAFS spectra of HTSC cuprates : научное издание

  • Avramov P.V. и др.
  • 1997 год
Effective Hamiltonianfor HTSC cupratestaking into accountelectron-phononinteraction in thestrong-correlationregime Ovchinnikov S.G.Shneider E.I.2005 год

Effective Hamiltonian for HTSC cuprates taking into account electron-phonon interaction in the… : научное издание

  • Ovchinnikov S.G. и др.
  • 2005 год
Integralrepresentation ofone-dimensional threeparticle scatteringfor ? functioninteractions Amaya-Tapia A.Gasaneo G.Macek J.H.2004 год

Integral representation of one-dimensional three particle scattering for ? function interactions : научное издание

  • Amaya-Tapia A. и др.
  • 2004 год
Correlation functionbehavior in quantumsystems which areclassically chaotic Berman G.P.Kolovsky A.R.1983 год

Correlation function behavior in quantum systems which are classically chaotic : научное издание

  • Berman G.P. и др.
  • 1983 год
The coordinate of asingular point of thetime correlationfunctions for aheteronuclear spinsystem of a crystal Zobov V.E.Popov M.A.2005 год

The coordinate of a singular point of the time correlation functions for a heteronuclear spin… : статья из журнала

  • Zobov V.E. и др.
  • 2005 год
On the coordinate ofa singular point oftime correlationfunctions for thesystem of nuclearmagnetic moments ofa… Zobov V.E.Popov M.A.2003 год

On the coordinate of a singular point of time correlation functions for the system of nuclear… : статья из журнала

  • Zobov V.E. и др.
  • 2003 год