Acoustic emission and nonergodic states of the electric-field-induced-phase transition of PbMg[sub 1/3]Nb[sub 2/3]O[sub 3]

@article{citeulike:328322, abstract = {Acoustic emission (AE) method was used to investigate the electric-field-induced-phase transition in the well-known relaxor Pb(Mg1/3Nb2/3)O3 (PMN). We show that in the field cooling process the induced-phase transition is accompanied by an AE signal, which reflects relaxation of the strong stress, associated with arising of a macroscopic domains structure similar to martensitic phase transition. However, using a procedure in which the field is applied after a zero field cooling, no AE signal is detected even after a very long time higher than expected for the appearance of the induced-phase transition. The comparison with previous x-ray-diffraction results allowed to get in the last case interesting insights on the local and long-range polar order of the induced ferroelectric state because of absence of the relaxation of the strong stress due to percolation mechanism of this phase transition. \©2005 American Institute of Physics}, author = {Dul'kin, E. and Roth, M. and Dkhil, B. and Kiat, J. M. }, citeulike-article-id = {328322}, doi = {10.1063/1.1980527}, journal = {Journal of Applied Physics}, keywords = {nanoregions, percolation, pmn}, number = {2}, posted-at = {2005-09-21 14:22:17}, priority = {2}, publisher = {AIP}, title = {Acoustic emission and nonergodic states of the electric-field-induced-phase transition of PbMg[sub 1/3]Nb[sub 2/3]O[sub 3]}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=JAPIAU000098000002023520000001\&idtype=cvips\&gifs=yes}, volume = {98}, year = {2005} }

TY - JOUR ID - citeulike:328322 L3 - citeulike-article-id:328322 TI - Acoustic emission and nonergodic states of the electric-field-induced-phase transition of PbMg[sub 1/3]Nb[sub 2/3]O[sub 3] JF - Journal of Applied Physics VL - 98 IS - 2 PB - AIP N2 - Acoustic emission (AE) method was used to investigate the electric-field-induced-phase transition in the well-known relaxor Pb(Mg1/3Nb2/3)O3 (PMN). We show that in the field cooling process the induced-phase transition is accompanied by an AE signal, which reflects relaxation of the strong stress, associated with arising of a macroscopic domains structure similar to martensitic phase transition. However, using a procedure in which the field is applied after a zero field cooling, no AE signal is detected even after a very long time higher than expected for the appearance of the induced-phase transition. The comparison with previous x-ray-diffraction results allowed to get in the last case interesting insights on the local and long-range polar order of the induced ferroelectric state because of absence of the relaxation of the strong stress due to percolation mechanism of this phase transition. ©2005 American Institute of Physics KW - nanoregions KW - percolation KW - pmn AU - Dul'kin, E AU - Roth, M AU - Dkhil, B AU - Kiat, JM PY - 2005/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JAPIAU000098000002023520000001&idtype=cvips&gifs=yes ER -