Stripe Structure, Spectral Feature and Soliton Gap in High Tc Cuprates

Kazushige Machida, Masanori Ichioka

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)


We show that lightly doped La2-xTSrxCuO4 can be described in terms of a stripe magnetic structure or soliton picture. The internal relationship between the recent neutron observation of the diagonal (x=0.05) to vertical (x ≥ 0.06) stripe transition, which was predicted, and the concomitant metal-insulator transition, is clarified by soliton physics. The phase diagram with the unidentified transition lines between the antiferromagnetic and stripe phases, the doping dependence of the modulation period, and the origin of the mid-infrared optical absorption are investigated and compared with other single-layer systems, La2-xSrxNiO4 and (La, Nd)2-xSrxCuO4. A novel type of quasi-particles and holes is fully responsible for metallic conduction and ultimately superconductivity.

Original languageEnglish
Pages (from-to)2168-2171
Number of pages4
Journaljournal of the physical society of japan
Issue number7
Publication statusPublished - Jul 1999


  • High T cupratesHubbard model
  • Soliton gap
  • Stripe structure

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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