348 citations
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Showing 2005 · cond-mat.mtrl-sciShow all
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cond-mat.mtrl-sci2005★ 15 cited
First principles studies of the Born effective charges and electronic dielectric tensors for the relaxor PMN (PbMg1/3Nb2/3O3)
Narayani Choudhury, R. E. Cohen, Eric J. Walter
We report first principles density functional calculations of the Born effective charges and electronic dielectric tensors for the relaxor PMN (PbMg1/3Nb2/3O3). Visualization of th…
cond-mat.mtrl-sci2005★ 329 cited
Pressure-Induced Anomalous Phase Transitions and Colossal Enhancement of Piezoelectricity in PbTiO
Zhigang Wu, Ronald E. Cohen
We find an unexpected tetragonal-to-monoclinic-to-rhombohedral-to-cubic phase transition sequence induced by pressure, and a morphotropic phase boundary in a pure compound using fi…