aqora

Effect of the additional second neighbor hopping on the spin dynamics in the t-J model

Xianglin Ke, Feng Yuan, Shiping Feng

Physica C SuperconductivityNov 1, 20001 citation

Effect of the additional second neighbor hopping on the spin dynamics in the t-J model

Xianglin Le, Feng Yuan, Shiping Feng

The effect of the additional second neighbor hopping t' on the spin dynamics in the t-J model is studied within the fermion-spin theory. Although the additional second neighbor hopping t' is systematically accompanied with the reduction of the dynamical spin structure factor and susceptibility, the qualitative behaviors of the dynamical spin structure factor and susceptibility are the same as in the case of t-J model. It is also shown that the integrated dynamical spin structure factor is almost t' independent in the underdoped regime.The effect of the additional second neighbor hopping t' on the spin dynamics in the t-J model is studied within the fermion-spin theory. Although the additional second neighbor hopping t' is systematically accompanied with the reduction of the dynamical spin structure factor and susceptibility, the qualitative behaviors of the dynamical spin structure factor and susceptibility are the same as in the case of t-J model. It is also shown that the integrated dynamical spin structure factor is almost t' independent in the underdoped regime.

arXiv:cond-mat/0006081Jun 6, 20000 citations

Spin and charge fluctuations in the t–J model

George Jackeli, Nikolay M. Plakida

Physica B Condensed MatterJan 1, 19991 citation

Influence of the additional second-neighbor hopping on the spin response in the t-J model

Xianglin Ke, Feng Yuan, Shiping Feng

The influence of the additional second-neighbor hopping ${t}^{\ensuremath{'}}$ on the spin response of the $t\ensuremath{-}J$ model in the underdoped and optimally doped regimes is studied within the fermion-spin theory. Although the additional second-neighbor hopping ${t}^{\ensuremath{'}}$ is systematically accompanied by the reduction of the dynamical spin structure factor and susceptibility, the qualitative behavior of the dynamical spin structure factor and susceptibility of the ${t\ensuremath{-}t}^{\ensuremath{'}}\ensuremath{-}J$ model is the same as in the case of $t\ensuremath{-}J$ model. The integrated dynamical spin structure factor spectrum is almost ${t}^{\ensuremath{'}}$ independent, and the integrated dynamical spin susceptibility still shows the particularly universal behavior as $I(\ensuremath{\omega},T)\ensuremath{\propto}\mathrm{arctan}[{a}_{1}\ensuremath{\omega}{/T+a}_{3}(\ensuremath{\omega}{/T)}^{3}].$The influence of the additional second-neighbor hopping ${t}^{\ensuremath{'}}$ on the spin response of the $t\ensuremath{-}J$ model in the underdoped and optimally doped regimes is studied within the fermion-spin theory. Although the additional second-neighbor hopping ${t}^{\ensuremath{'}}$ is systematically accompanied by the reduction of the dynamical spin structure factor and susceptibility, the qualitative behavior of the dynamical spin structure factor and susceptibility of the ${t\ensuremath{-}t}^{\ensuremath{'}}\ensuremath{-}J$ model is the same as in the case of $t\ensuremath{-}J$ model. The integrated dynamical spin structure factor spectrum is almost ${t}^{\ensuremath{'}}$ independent, and the integrated dynamical spin susceptibility still shows the particularly universal behavior as $I(\ensuremath{\omega},T)\ensuremath{\propto}\mathrm{arctan}[{a}_{1}\ensuremath{\omega}{/T+a}_{3}(\ensuremath{\omega}{/T)}^{3}].$

arXiv:cond-mat/0004298Physical review. B, Condensed matterJul 1, 20002 citations

Spin and Charge Excitations in the 2D t-J Model

W. O. Putikka, Marco U. Luchini, R. R. P. Singh

APSMar 1, 20000 citations

Spin-charge separation in the t-j model

Zheng-Yu Weng, D. N. Sheng, C. S. Ting

Journal of Physics and Chemistry of SolidsDec 1, 19950 citations

Effect of the additional second neighbor hopping on the charge dynamics in the t–J model

Related papers

Effect of the additional second neighbor hopping on the charge dynamics in the t–J model

Related papers