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cond-mat.mtrl-sci2008★ 1 cited
Giant flexoelectric effect in two-dimensional boron-nitride sheets
Ivan Naumov, Alexander M. Bratkovsky, V. Ranjan
We find, with the use of first-principles calculations, that a single-atom-thick boron-nitride (BN) sheet exhibits an unusual nonlinear electromechanical effect: it becomes macrosc…
cond-mat.mtrl-sci2004
Phonon in SrTiO under finite electric fields
Ivan I. Naumov, Huaxiang Fu
We propose an efficient approach within the density-functional theory to determine the phonon structure of infinite solids under finite electric fields. We apply this approach to t…