Direct evidence of soft mode behavior near the Burns' temperature in PbMg$_{1 / 3}$Nb$_{2 / 3}$O$_{3}$ (PMN) relaxor ferroectric

Inelastic neutron scattering measurements of the relaxor ferroelectric PbMg $_{1 / 3}$ Nb $_{2 / 3}$ O $_{3}$ (PMN) in the temperature range 490~K $<$ T $<$ 880~K directly observe the soft mode (SM) associated with the Curie-Weiss behavior of the dielectric constant $ε$ (T). The results are treated within the framework of the coupled SM and transverse optic (TO1) mode and the temperature dependence of the SM frequency at q=0.075 a* is determined. The parameters of the SM are consistent with the earlier estimates and the frequency exhibits a minimum near the Burns temperature ( $\approx$ 650K)

Direct evidence of soft mode behavior near the Burns' temperature in PbMg $_{1 / 3}$ Nb $_{2 / 3}$ O $_{3}$ (PMN) relaxor ferroectric

文献摘要

讨论

讲解博客

AI智能校验

Direct evidence of soft mode behavior near the Burns' temperature in PbMg $_{1 / 3}$ Nb $_{2 / 3}$ O $_{3}$ (PMN) relaxor ferroectric

文献摘要

讨论

讲解博客

AI智能校验

Direct evidence of soft mode behavior near the Burns' temperature in PbMg1/31/3​Nb2/32/3​O33​ (PMN) relaxor ferroectric

文献摘要

讨论

|讲解博客

|AI智能校验

Direct evidence of soft mode behavior near the Burns' temperature in PbMg1/31/3​Nb2/32/3​O33​ (PMN) relaxor ferroectric

文献摘要

讨论

|讲解博客

|AI智能校验

Direct evidence of soft mode behavior near the Burns' temperature in PbMg $_{1 / 3}$ Nb $_{2 / 3}$ O $_{3}$ (PMN) relaxor ferroectric

讲解博客

AI智能校验

Direct evidence of soft mode behavior near the Burns' temperature in PbMg $_{1 / 3}$ Nb $_{2 / 3}$ O $_{3}$ (PMN) relaxor ferroectric

讲解博客

AI智能校验