PbZr1-xTixO3(PZT)的θ相变是氧八面体绕[111]轴转过一微小角度θ引起的,由于前人对相变中晶体学原胞的选取不合适,所以不能正确说明晶体结构对称性的变化.本文根据居里原理,分析了相变前后对称性的变化,得出其序参量是一个三阶全对称的极张量,并给出具体的数学形式.
参考文献
| [1] | Landan L D.Collected Papers of L.D.Landau[M].,1965 |
| [2] | 陈纲;廖理几.晶体物理学基础[M].北京:科学出版社,1992 |
| [3] | 冯端.金属物理学[M].北京:科学出版社,1998 |
| [4] | 钟维烈.铁电物理学[M].北京:科学出版社,1998 |
| [5] | Kittel C .Theory of Antiferroelectric Crystals[J].Physical Review,1951,82(05):729-732. |
| [6] | Devonshire A F .[J].Philosophical Magazine,1949,40:1040-1043. |
| [7] | Halemane T R;Haun M J;Cross L E et al.A Phenomenological Theory for Phase Transitions Perovskite Ferroelectrics With Oxygen Octahedron Tilts[J].Ferroelectrics,1985,62:149-165. |
| [8] | Halemane T R;Haun M J;Cross L E et al.First Order Transitions in Perovskite Ferroelectries with Oxygen Octahedron Tilts:Application to PZT[J].Ferroelectrics,1986,70:153-159. |
| [9] | Haun M J;Urman E F;Halemane T R et al.Thermodynamic Theory of the Lead Zirconate-titanate Solid Solution System,Part Ⅳ:Tilting of the Oxygen Octahedral[J].Ferroelectrics,1989,99:55-62. |
| [10] | Haun M J;Furman E;Jang S J et al.Thermodynamic Theory of the lead Zirconato-titanate Solid Solution System,Part Ⅰ:Phenomenology[J].Ferroelectrics,1989,99:13-25. |
| [11] | Dai Xunhi;Wang Yongling .FE(LT)-FE(HT) Phnse Transition Study of PZT95/5 Ceramics under DC BIAS[J].Ferroelectrics,1990,101:235-2A1. |
| [12] | A.R.Freeman;S.P.Joshi .The effect of nonlinear stress and temperature on the ferroelectric properties of perovskites. Part 1: Phenomenological equations[J].Ferroelectrics: Letters Section,1999(1/4):1-14. |
| [13] | Kwapulinski J.;Bohm H.;Dec J.;Kusz J. .Thermal vibrations in PbZrO3 single crystals[J].Journal of Physics. Condensed Matter,2001(7):1461-1466. |
| [14] | Corker DL.;Whatmore RW.;Stallard A.;Fauth F.;Glazer AM. .A neutron diffraction investigation into the rhombohedral phases of the perovskite series PbZr1-xTixO3[J].Journal of Physics. Condensed Matter,1998(28):6251-6269. |
| [15] | Roloder K;Maglione M;Fontana M D.Behavioue of a Polar Relaxation Mode Around the Phase Transition Point in the Antiferroelectric PbZrO3 Single Crystal[J].Journal of Physics:Condensed Matter,1996(08):10669-10678. |
| [16] | H. FUJISHITA;Y. ISHIKAWA .Thermodynamics of Antiferroelectric Phase Transition in PbZrO_3[J].Ferroelectrics: Letters Section,2003(1):75-86. |
| [17] | Ostapchuk T.;Zelezny V.;Kamba S.;Bovtun V.;Porokhonskyy V. Pashkin A.;Kuzel P.;Glinchuk MD.;Bykov IP.;Gorshunov B.;Dressel M.;Petzelt J. .Polar phonons and central mode in antiferroelectric PbZrO3 ceramics[J].Journal of Physics. Condensed Matter,2001(11):2677-2689. |
| [18] | Fujishita H;Tanaka S .Antiferroelectric Phase Transition and Order Parameters of PbZrO3[J].Ferroelectrics,2001,258:37-46. |
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