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Global phase diagram of bilayer quantum Hall ferromagnets

M. Abolfath, L. Radzihovsky, A. H. MacDonald

cond-mat.mes-hallarXiv:cond-mat/0110049

Abstract

We present a microscopic study of the interlayer spacing d versus in-plane magnetic field B phase diagram for bilayer quantum Hall (QH) pseudo-ferromagnets. In addition to the interlayer charge balanced commensurate and incommensurate states analyzed previously, we address the corresponding interlayer charge unbalanced "canted" QH states. We predict a large anomaly in the bilayer capacitance at the canting transition and the formation of dipole stripe domains with periods exceeding 1 micron in the canted state.

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