Numerical study of the transition to stripe phases in high-temperature superconductors under a strong magnetic field

Yan Chen, H. Y. Chen, C. S. Ting

研究成果: 雜誌貢獻文章同行評審

33 引文 斯高帕斯(Scopus)

摘要

The nature of the spin density wave (SDW) and charge density wave (CDW) in the mixed state of high-Tc superconductors (HTS) is investigated by using the self-consistent Bogoliubov-de Gennes equations and an effective model Hamiltonian with competing SDW and d-wave superconductivity interactions. We show that there exists a critical on-site Coulomb interaction Uc. For optimally doped sample, two-dimensional SDW and CDW modulations are induced for U < Uc while SDW and CDW orders become antiferromagnetic (AF) and charge stripes for U > Uc. These stripe orders are stabilized and enhanced near the vortex cores. The wave-lengths of the AF stripes and charge stripes are found respectively to be 8a and 4a, with a as the lattice constant. We show that our results could be applied to understand several recent experiments on HTS.

原文英語
文章編號104501
頁(從 - 到)1-5
頁數5
期刊Physical Review B - Condensed Matter and Materials Physics
66
發行號10
DOIs
出版狀態已發佈 - 2002 九月 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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