Spontaneous Pseudospin Spiral Order in Bilayer Quantum Hall Systems

Details Spontaneous Pseudospin Spiral Order in Bilayer Quantum Hall Systems Spontaneous Pseudospin Spiral Order in Bilayer Quantum Hall Systems

2003-04-17

arxiv.org/abs/cond-mat/0304417v2

Phys. Rev. B {\bf 69}, 045319 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 4 figures, Replaced by a new extended version published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.69.045319

Using exact diagonalization of bilayer quantum Hall systems at total filling factor $\nu_T=1$ in the torus geometry, we show that there is a new long-range interlayer phase coherence due to spontaneous pseudospin spiral order at interlayer distances larger than the critical value at which the pseudospin ferromagnetic order is destroyed. We emphasize the distinction between the interlayer phase coherence and the pseudospin ferromagnetic order.

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