Abstract
PbMg1/3Nb2/3O3 (PMN) is a well known ferroelectric relaxor. PMN crystal doped with La3+ has greatly enlarged chemically ordered regions (CORs) in the structure. It is interesting to know how the development of CORs influences physical properties of PMN crystal. In this work, dielectric properties and distribution of relaxation times of PMN and 0.98Pb(Mg1/3Nb2/3)O3-0.02La(Mg2/3Nb1/3)O3 (PLMN) crystals are studied. The experiment was performed in 120-500 K temperature range and wide frequency range - up to 46 GHz. The results demonstrate that the relaxor behaviour of PMN and PLMN is qualitatively the same in spite of the fact that chemical ordering is very different.
| Original language | English |
|---|---|
| Article number | 142905 |
| Journal | Applied Physics Letters |
| Volume | 107 |
| Issue number | 14 |
| DOIs | |
| State | Published - 5 Oct 2015 |
| Externally published | Yes |