TY - JOUR
T1 - Two-component model of the neutron diffuse scattering in the relaxor ferroelectric PZN-4.5%PT
AU - Xu, Zhijun
AU - Wen, Jinsheng
AU - Xu, Guangyong
AU - Stock, C.
AU - Gardner, J. S.
AU - Gehring, P. M.
PY - 2010/10/28
Y1 - 2010/10/28
N2 - We report measurements of the neutron diffuse scattering in a single crystal of the relaxor ferroelectric material 95.5%Pb (Zn1/3Nb 2/3)O3-4.5%PbTiO3. Our results suggest that the nanometer scale structure in this compound exhibits both 〈100〉 and 〈110〉 polarizations, which contribute to different portions of the total diffuse scattering intensity. These contributions can be distinguished by the differing responses to an electric field applied along [001]. While diffuse scattering intensities associated with 〈110〉 (T2-type) polarizations show little to no change in a [001] field, those associated with 〈100〉 (T1-type) polarizations are partially suppressed by the field at temperatures below the Curie temperature TC ∼475 K. Neutron spin-echo measurements show that the diffuse scattering at (0.05,0,1) is largely dynamic at high temperature and gradually freezes on cooling, becoming mostly static at 200 K.
AB - We report measurements of the neutron diffuse scattering in a single crystal of the relaxor ferroelectric material 95.5%Pb (Zn1/3Nb 2/3)O3-4.5%PbTiO3. Our results suggest that the nanometer scale structure in this compound exhibits both 〈100〉 and 〈110〉 polarizations, which contribute to different portions of the total diffuse scattering intensity. These contributions can be distinguished by the differing responses to an electric field applied along [001]. While diffuse scattering intensities associated with 〈110〉 (T2-type) polarizations show little to no change in a [001] field, those associated with 〈100〉 (T1-type) polarizations are partially suppressed by the field at temperatures below the Curie temperature TC ∼475 K. Neutron spin-echo measurements show that the diffuse scattering at (0.05,0,1) is largely dynamic at high temperature and gradually freezes on cooling, becoming mostly static at 200 K.
UR - http://www.scopus.com/inward/record.url?scp=78049387162&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.134124
DO - 10.1103/PhysRevB.82.134124
M3 - Article
AN - SCOPUS:78049387162
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
M1 - 134124
ER -