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Canted ground state in artificial molecules at high magnetic fields

L. Martin-Moreno·L. Brey·C. Tejedor
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Abstract

We analyze the transitions that a magnetic field provokes in the ground state of an artificial homonuclear diatomic molecule. For that purpose, we have performed numerical diagonalizations for a double quantum dot around the regime of filling factor 2. We present phase diagrams in terms of tunneling and Zeeman couplings, and confinement strength. We identify a series of transitions from ferromagnetic to symmetric states through a set of canted states with antiferromagnetic couping between the two quantum dots.

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L. Martin-Moreno, L. Brey, C. Tejedor. 2000-06-20. Canted ground state in artificial molecules at high magnetic fields. https://doi.org/10.1103/physrevb.62.r10633

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