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- W2000499868 abstract "In the present paper we demonstrate that the spin columnar dimerized phase (conducting spin stripe liquid) is stable at doping ${x}_{c1}<x<{x}_{c2}.$ At $x<{x}_{c1}$ the system undergoes phase transition to the N'eel state, and at $x>{x}_{c2}$ to the normal Fermi liquid. At $t/J=3$ the critical concentrations are ${x}_{c1}ensuremath{approx}0.09$ and ${x}_{c2}ensuremath{sim}0.36.$ To prove stability of the stripe phase and to calculate critical concentrations we employ two approaches. The first approach consists in direct comparison of ground-state energies of the N'eel state and the columnar dimerized state. The second approach is based on the calculation of the magnon Green's function. Imaginary poles in the Green's function indicate transition to the N'eel state. Both approaches demonstrate stability of the spin stripe phase and give close values of the critical concentrations." @default.
- W2000499868 created "2016-06-24" @default.
- W2000499868 creator A5041307982 @default.
- W2000499868 date "2001-04-11" @default.
- W2000499868 modified "2023-10-18" @default.
- W2000499868 title "Spontaneous spin stripe dimerization in the dopedt−Jmodel" @default.
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- W2000499868 doi "https://doi.org/10.1103/physrevb.63.174429" @default.
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