{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,29]],"date-time":"2025-11-29T16:13:34Z","timestamp":1764432814605,"version":"3.41.2"},"reference-count":21,"publisher":"AIP Publishing","issue":"5","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,9,1]]},"abstract":"<jats:p>Direct measurements of the motion of domain walls in disordered ferroelectrics provide important information on their interaction with defects, which is crucial for the functioning of various ferroelectric devices such as high-K capacitors and ferroelectric-based memories. In this work, we report on the results of the nanoscale measurements of domain-wall velocity and static domain-wall roughness in disordered (Pb,La)(Zr,Ti)O3 (PLZT) ceramics prepared by hot press sintering. Relaxation of domain walls to their equilibrium configurations at short length scales yields the apparent roughness exponent \u03b6 \u2248 0.67 in PLZT 9.5\/65\/35. At the same time, the dynamical exponent \u03bc was found to be about 0.25 from the independent measurements of domain-wall creep under local application of electric field. An analysis of these two values points to the effective dimensionality deff\u2009=\u20091 for the domain walls in PLZT with high La content. This result is confirmed by the layer-by-layer polishing followed by the imaging of an artificially created domain. The origin of disorder and its dependence on La concentration in PLZT solid solutions are discussed.<\/jats:p>","DOI":"10.1063\/1.3624810","type":"journal-article","created":{"date-parts":[[2011,9,2]],"date-time":"2011-09-02T14:37:08Z","timestamp":1314974228000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":35,"title":["Quasi-one-dimensional domain walls in ferroelectric ceramics: Evidence from domain dynamics and wall roughness measurements"],"prefix":"10.1063","volume":"110","author":[{"given":"N. A.","family":"Pertsev","sequence":"first","affiliation":[{"name":"A. F. Ioffe Physico-Technical Institute 1 , Russian Academy of Sciences, 194021 St Petersburg, Russia"}]},{"given":"D. A.","family":"Kiselev","sequence":"additional","affiliation":[{"name":"University of Aveiro 2 Department of Ceramics and Glass Engineering & CICECO, , 3810-193 Aveiro, Portugal"},{"name":"National University of Science and Technology 3 \u201cMISiS\u201d, 119049 Moscow, Russia"}]},{"given":"I. K.","family":"Bdikin","sequence":"additional","affiliation":[{"name":"University of Aveiro 4 Department of Mechanical Engineering & TEMA, , 3810-193 Aveiro, Portugal"}]},{"given":"M.","family":"Kosec","sequence":"additional","affiliation":[{"name":"Jo\u017eef Stefan Institute 5 Electronic Ceramics Department, , Jamova 39, 1000 Ljubljana, Slovenia"}]},{"given":"A. L.","family":"Kholkin","sequence":"additional","affiliation":[{"name":"University of Aveiro 2 Department of Ceramics and Glass Engineering & CICECO, , 3810-193 Aveiro, Portugal"}]}],"member":"317","published-online":{"date-parts":[[2011,9,2]]},"reference":[{"volume-title":"Magnetic Domains: the Analysis of Magnetic Microstructures","year":"1998","key":"2023080501153133600_c1"},{"volume-title":"Magnetic Materials: Fundamentals and Device Applications","year":"2003","key":"2023080501153133600_c2"},{"key":"2023080501153133600_c3","doi-asserted-by":"publisher","first-page":"227","DOI":"10.1063\/1.1722712","volume":"28","year":"1957","journal-title":"J. Appl. Phys."},{"volume-title":"Polar Dielectrics and their Applications","year":"1979","key":"2023080501153133600_c4"},{"key":"2023080501153133600_c5","doi-asserted-by":"publisher","first-page":"6149","DOI":"10.1088\/0022-3719\/20\/36\/016","volume":"20","year":"1987","journal-title":"J. Phys. 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