Manifestation of spin degrees of freedom in the double fractional quantum Hall system

T. Nakajima, H. Aoki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The double fractional quantum Hall system of spin-1/2 electrons is studied numerically. We predict that the inclusion of spin degrees of freedom gives rise to a spin-unpolarized quantum liquid with the simplest example being at =4/7. The state, which emerges from an intimate link between the spin state and the interlayer electron correlation, and also survives the Zeeman effect up to a critical g factor, illustrates that the fractional quantum Hall liquid is versatile enough to accommodate both the doubled fermion species and spin. Even when the ground state is spin polarized as in =1, the lowest charge-excitation mode can involve the spin when the interlayer tunneling is considered.

Original languageEnglish
Pages (from-to)7874-7877
Number of pages4
JournalPhysical Review B
Volume51
Issue number12
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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