Phase diagram of the frustrated Hubbard model

Abstract

The Mott-Hubbard metal-insulator transition in the paramagnetic phase of the one-band Hubbard model has long been used to describe similar features in real materials like V${}_2$O${}_3$. Here we show that this transition is hidden inside a rather robust antiferromagnetic insulator even in the presence of comparatively strong magnetic frustration. This result raises the question of the relevance of the Mott-Hubbard metal-insulator transition for the generic phase diagram of the one-band Hubbard model.

4 pages, 6 figures

References in corpus (3)

• Finite temperature numerical renormalization group study of the Mott-transition
• Magnetism and Phase Separation in the Ground State of the Hubbard Model
• Mott-Hubbard transition in infinite dimensions

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