Hole Density in Charge Stripes and Effect of Next-Nearest-Neighbor Transfer

Kenji Kobayashi; Hisatoshi Yokoyama

doi:10.1023/a:1022564120957

Hole Density in Charge Stripes and Effect of Next-Nearest-Neighbor Transfer

Kenji Kobayashi, Hisatoshi Yokoyama

SCI - Physics

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

By applying a variational Monte Carlo method to the two-dimensional t-J model, a couple of properties of striped states are studied. In the charge domain walls vertical (or horizontal) to the lattice (VDW), the hole density pe is favorable in energy similarly for 0.5 ≲ ρ_l ≲ 1, whereas in the diagonal domain walls (DDW) the stable hole density is limited to ρ_l = 1. Negative next-nearest-neighbor transfer (t′/t < 0) further stabilizes VDW with ρ_l = 0.5 and DDW with ρ_l = 1 against the d_x2-y2-wave superconducting state.

Original language	English
Pages (from-to)	199-203
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	117
Issue number	3-4
DOIs	https://doi.org/10.1023/a:1022564120957
Publication status	Published - 1999

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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abstract = "By applying a variational Monte Carlo method to the two-dimensional t-J model, a couple of properties of striped states are studied. In the charge domain walls vertical (or horizontal) to the lattice (VDW), the hole density pe is favorable in energy similarly for 0.5 ≲ ρl ≲ 1, whereas in the diagonal domain walls (DDW) the stable hole density is limited to ρl = 1. Negative next-nearest-neighbor transfer (t′/t < 0) further stabilizes VDW with ρl = 0.5 and DDW with ρl = 1 against the dx2-y2-wave superconducting state.",

author = "Kenji Kobayashi and Hisatoshi Yokoyama",

year = "1999",

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language = "English",

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journal = "Journal of Low Temperature Physics",

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AB - By applying a variational Monte Carlo method to the two-dimensional t-J model, a couple of properties of striped states are studied. In the charge domain walls vertical (or horizontal) to the lattice (VDW), the hole density pe is favorable in energy similarly for 0.5 ≲ ρl ≲ 1, whereas in the diagonal domain walls (DDW) the stable hole density is limited to ρl = 1. Negative next-nearest-neighbor transfer (t′/t < 0) further stabilizes VDW with ρl = 0.5 and DDW with ρl = 1 against the dx2-y2-wave superconducting state.

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