Donghwa Lee, R. K. Behera, P. Wu, H. Xu, S. B. Sinnott, S. R. Phillpot, L.-Q. Chen and V. Gopalan, “Mixed Bloch-like and Néel-like Character to 180 Ferroelectric Walls in Lithium Niobate”, Phys. Rev. B 80, 060102 (R) (2009). Selected for August 24, 2009 issue of Virtual Journal of Nanoscale Science & Technology.
H. Xu, Donghwa Lee, S. B. Sinnott, V. Gopalan, V. Dierolf, and S. R. Phillpot, “Er Defects in LiNbO3 from Density Functional Theory Combined with Thermodynamic Calculations”, Phys. Rev. B 80, 144104 (2009).