Order and Disorder in Ferroelectrics
作者： R. BLINC
DOI: 10.1080/00150190490464845
关键词: Materials science 、 Squaric acid 、 Condensation 、 Ferroelectricity 、 Soft modes 、 Phase transition 、 Phase (matter) 、 Condensed matter physics 、 Electric field gradient 、 Component (thermodynamics)
摘要: Recent developments in the understanding of order-disorder and displacive type transitions are presented. It is shown that classical like those squaric acid KDP contain addition to order disorder also a component phase transition mechanism. Similarly ferroelectrics BaTiO3 which have been traditionally described by condensation soft mode an as Ti ion dynamically disordered between different off-center sites already cubic phase. The comparison experimental theoretical electric field gradient tensors at various phases allows for quantitative determination mixed character this transition.
sci-hub.se 参考文章(16)
R. Comes, M. Lambert, A. Guinier, The chain structure of BaTiO3 and KNbO3 Solid State Communications. ,vol. 6, pp. 715- 719 ,(1968) , 10.1016/0038-1098(68)90571-1
G. F. Reiter, J. Mayers, P. Platzman, Direct observation of tunneling in KDP using Neutron Compton scattering. Physical Review Letters. ,vol. 89, pp. 135505- ,(2002) , 10.1103/PHYSREVLETT.89.135505
N. Dalal, A. Klymachyov, A. Bussmann-Holder, COEXISTENCE OF ORDER-DISORDER AND DISPLACIVE FEATURES AT THE PHASE TRANSITIONS IN HYDROGEN-BONDED SOLIDS : SQUARIC ACID AND ITS ANALOGS Physical Review Letters. ,vol. 81, pp. 5924- 5927 ,(1998) , 10.1103/PHYSREVLETT.81.5924
Boštjan Zalar, Valentin V. Laguta, Robert Blinc, NMR evidence for the coexistence of order-disorder and displacive components in barium titanate. Physical Review Letters. ,vol. 90, pp. 037601- ,(2003) , 10.1103/PHYSREVLETT.90.037601
O. Kanert, H. Schulz, J. Albers, Nuclear magnetic resonance study of the cubic-to-tetragonal phase transition in BaTiO3 Solid State Communications. ,vol. 91, pp. 465- 469 ,(1994) , 10.1016/0038-1098(94)90787-0
Yakov Girshberg, Yizhak Yacoby, Ferroelectric phase transitions and off-centre displacements in systems with strong electron-phonon interaction Journal of Physics: Condensed Matter. ,vol. 11, pp. 9807- 9822 ,(1999) , 10.1088/0953-8984/11/48/337
Raymond Kind, Paola Maria Cereghetti, Christian Anton Jeitziner, Boštjan Zalar, Janez Dolinšek, Robert Blinc, Slater Ice Rules and H-Bond Dynamics in KDP-Type Systems Physical Review Letters. ,vol. 88, pp. 195501- ,(2002) , 10.1103/PHYSREVLETT.88.195501
A. Bussmann-Holder, A. R. Bishop, Competing length scales in anharmonic lattices: Domains, stripes, and discommensurations Physical Review B. ,vol. 56, pp. 5297- 5301 ,(1997) , 10.1103/PHYSREVB.56.5297
T.J Bastow, H.J Whitfield, 137Ba and 47,49Ti NMR: electric field gradients in the non-cubic phases of BaTiO3 Solid State Communications. ,vol. 117, pp. 483- 488 ,(2001) , 10.1016/S0038-1098(00)00491-9
J. C. Slater, Theory of the Transition in KH2PO4 Journal of Chemical Physics. ,vol. 9, pp. 16- 33 ,(1941) , 10.1063/1.1750821