NDLI: Effects of Higher Hopping Terms on the Stripe States in the Two-Dimensional Hubbard Model

Content Provider	Springer Nature Link
Author	Miyazaki, Mitake Yamaji, Kunihiko Yanagisawa, Takashi
Copyright Year	2005
Abstract	Using the variational Monte Carlo method for the two-dimensional t-t′-t″-U Hubbard model, we discuss the ground state of the underdoped region on the high-T $_{c}$ cuprates. We found that, while stripe states with the periodicity consistent with experiments for La$_{2−}$ $_{ x }$Sr$_{ x }$CuO$_{4}$ are stabilized in the case of t′/t < 0, the positive t′/t makes the stripe state unstable with the lowest energy state being the commensurate AF state, which is consistent with experiments on the electron doping system such as Nd$_{2−}$ $_{ x }$Ce$_{ x }$CuO$_{4}$. We also show that the stripe state is sensitive to the value of t″/t > 0. These results indicate that the nesting condition is a critical factor to the stripe instability.
Starting Page	727
Ending Page	730
Page Count	4
File Format	PDF
ISSN	08961107
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	18
Issue Number	5-6
e-ISSN	15729605
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2005-09-15
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	3100/3101 Condensed Matter Physics Electronic, Optical and Magnetic Materials

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Effects of Higher Hopping Terms on the Stripe States in the Two-Dimensional Hubbard Model