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Citation: Zhang Dong-Jie, Yao Xi. Dynamics on Microdomain-Macrodomain Transition of Relaxor Ferroelectrics[J]. Acta Physico-Chimica Sinica, ;2004, 20(07): 712-716. doi: 10.3866/PKU.WHXB20040709 shu

Dynamics on Microdomain-Macrodomain Transition of Relaxor Ferroelectrics

Zhang Dong-Jie ,
Yao Xi

1.
Laboratory of Materials Science, Nanjing Normal University，Nanjing　210097;Electronic Materials Research Laboratory, Xi′an Jiaotong University, Xi′an　710049

Received Date: 22 December 2003
Available Online: 15 July 2004

The Pb-based complex perovskite relaxor ferroelectrics (RFE) of Pb(Mg1/3Nb2/3)O3(PMN) and Pb(Zn1/3Nb2/3)O3(PZN) ceramics were prepared by conventional methods. The dynamics on microdomain-macrodomain transition of relaxor ferroelectrics was investigated by using amended local freezing glass-model. The dynamics on microdomain growth was also studied. The result shows that microdomain-macrodomain transition is a quantum transition process, while its driving forces are mainly heating force and energy force. The stability of the microdomain-macrodomain transition in RFE is judged by both the activating energy and state parameter. The stability of the microdomain growth was judged by the K value of stability.
- Relaxor ferroelectrics;Microdomain;Macrodomain;Growth;Dynamics
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