Properties of the Soliton-Lattice State in Double-Layer Quantum Hall Systems

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Application of a sufficiently strong parallel magnetic field B>Bc produces a soliton-lattice (SL) ground state in a double-layer quantum Hall system. We calculate the ground-state properties of the SL state as a function of B for total filling factor νT=1, and obtain the total energy, anisotropic SL stiffness, Kosterlitz–Thouless melting temperature, and SL magnetization. The SL magnetization might be experimentally measurable, and the magnetic susceptibility diverges as |BBc|−1.