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Interplay between static and dynamic polar correlations in relaxor Pb(Mg1/3Nb2/3)O-3

Stock, Chris; Van Eijck, L.; Fouquet, P.; Maccarini, M.; Gehring, Peter M.; Xu, Guangyong; Luo, Hongjie; Zhao, X.; Li, Jiefang; Viehland, Dwight D. (American Physical Society, 2010-04-01)

We have characterized the dynamics of the polar nanoregions in Pb(Mg1/3Nb2/3)O-3 through high-resolution neutron-backscattering and spin-echo measurements of the diffuse-scattering cross section. We find that the ...

Damped soft phonons and diffuse scattering in 40%Pb(Mg1/3Nb2/3)O-3-60%PbTiO3

Stock, Chris; Ellis, D.; Swainson, I. P.; Xu, Guangyong; Hiraka, H.; Zhong, Z.; Luo, Hongjie; Zhao, X.; Viehland, Dwight D.; Birgeneau, R. J.; Shirane, Gen (American Physical Society, 2006-02-13)

Using neutron elastic and inelastic scattering and high-energy x-ray diffraction, we present a comparison of 40% Pb(Mg1/3Nb2/3)O-3-60% PbTiO3 (PMN-60PT) with pure Pb(Mg1/3Nb2/3)O-3 (PMN) and PbTiO3 (PT). We measure the ...

Soft phonon columns on the edge of the Brillouin zone in the relaxor PbMg1/3Nb2/3O3

Swainson, I. P.; Stock, Chris; Gehring, Peter M.; Xu, Guangyong; Hirota, K.; Qiu, Y.; Luo, Hongjie; Zhao, X.; Li, Jiefang; Viehland, Dwight D. (American Physical Society, 2009-06-10)

We report lattice-dynamical measurements, made using neutron inelastic-scattering methods, of the relaxor perovskite PbMg1/3Nb2/3O3 (PMN) at momentum transfers near the edge of the Brillouin zone. Unusual "columns" of ...

Direct observation of the near-surface layer in Pb(Mg1/3Nb2/3)O-3 using neutron diffraction

Conlon, K. H.; Luo, Hongjie; Viehland, Dwight D.; Li, Jiefang; Whan, T.; Fox, J. H.; Stock, Chris; Shirane, Gen (American Physical Society, 2004-11-19)

Spatially resolved neutron diffraction as a function of crystal depth in Pb(Mg1/3Nb2/3)O-3 reveals the presence of a distinct near-surface region where a strong distortion in the lattice exists. A dramatic change in both ...

Neutron and x-ray diffraction study of cubic [111] field-cooled Pb(Mg1/3Nb2/3)O-3

Stock, Chris; Xu, Guangyong; Gehring, Peter M.; Luo, Hongjie; Zhao, X.; Cao, Hu; Li, Jiefang; Viehland, Dwight D.; Shirane, Gen (American Physical Society, 2007-08-01)

Neutron and x-ray diffraction techniques have been used to study the competing long- and short-range polar order in the relaxor ferroelectric Pb(Mg1/3Nb2/3)O-3 (PMN) under a [111] applied electric field. Despite reports ...

Dynamic origin of the morphotropic phase boundary: Soft modes and phase instability in 0.68Pb(Mg(1/3)Nb(2/3)O(3))-0.32PbTiO(3)

Cao, Hu; Stock, Chris; Xu, Guangyong; Gehring, Peter M.; Li, Jiefang; Viehland, Dwight D. (American Physical Society, 2008-09-04)

We report neutron inelastic scattering and high-resolution x-ray diffraction measurements on single crystal 0.68Pb(Mg(1/3)Nb(2/3)O(3))-0.32PbTiO(3)) (PMN-0.32PT), a relaxor ferroelectric material that lies within the ...