A new paper by William Parker (ANL) and Serge Nakhmanson, and titled Density functional study of the structural, electronic, and vibrational properties of β-Ba₂TiO₄ was just accepted for publication in Phys Rev B. Our previous paper predicting incommensurate distortions in a fictitious epitaxial Ruddlesden-Popper phase of Ba₂TiO₄ was published in Phys Rev B earlier this year.

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