Evidence of ferroelastic–ferroelastic phase transition in BiMo[sub x]W[sub 1-x]O[sub 6] compounds

Jiménez, R.; Castro, A.; Jiménez, B.
October 2003
Applied Physics Letters;10/20/2003, Vol. 83 Issue 16, p3350
Academic Journal
Through mechanoelastic, thermal expansion, and dielectric measurements as a function of the temperature on ceramics of BiMo[sub x]W[sub 1-x]O[sub 6] (x=0, 0.10, and 0.25) solid solutions, anomalies in the corresponding parameters are found below the ferroparaelectric phase transition temperature. One of these anomalies, that corresponding to the temperature close to 940 K, contains mechanoelastic features that strongly suggest that we are dealing with a ferroelastic–ferroelastic phase transition. The behavior of thermal expansion and dielectric constant suggests that this phase transition scarcely affects the macroscopic ferroelectric properties in that temperature range. The origin of the proposed ferroelastic–ferroelastic phase transition could be attributed to the tilting of BO[sub 6] octahedra. © 2003 American Institute of Physics.


Related Articles

  • New ferroelastic phase transition induced by impurity tunneling with a structural local transition. Vikhnin, V. S.; Maksimova, T. I. // Technical Physics Letters;Dec2009, Vol. 35 Issue 12, p1121 

    We predict a new ferroelastic phase transition in a matrix, which is induced by the tunneling states appearing under the conditions of structural local transitions for impurity ions. This ferroelastic phase transition has been studied in crystals of the proper ferroelastic K3Na(CrO4)2 with...

  • Mechanism of the Formation of a Soft Mode in Ferroelastic Phase Transition. Goryaınov, S. V.; Ovsyuk, N. N. // JETP Letters;4/25/2001, Vol. 73 Issue 8, p408 

    It is shown that the softening of the acoustic mode and the ensuing ferroelastic phase transition are due to the linear–quadratic interaction between the symmetric and antisymmetric deformations, which is presently neglected in the literature. An expression is obtained which can be used...

  • Impedance spectroscopy of distinct electrical responses in TlH2PO4. Kim, S. H.; Lee, K. W.; Lee, Cheol Eui; Lee, K.-S.; Kim, D. H.; Jang, D. Y. // Applied Physics Letters;9/4/2006, Vol. 89 Issue 10, p102901 

    The ferroelastic phase in hydrogen-bonded TlH2PO4 was investigated by means of impedance spectroscopy. The high-temperature dielectric susceptibility revealed the corresponding Curie-Weiss temperature to be far above the antiferroelectric phase transition temperature, and a phase boundary has...

  • Phase coexistence and Mn-doping effect in lead-free ferroelectric (Na1/2Bi1/2)TiO3 crystals. Tu, C.-S.; Huang, S.-H.; Ku, C.-S.; Lee, H.-Y.; Chien, R. R.; Schmidt, V. H.; Luo, H. // Applied Physics Letters;2/8/2010, Vol. 96 Issue 6, p062903 

    Phase transformations of (001)-cut (Na1/2Bi1/2)TiO3 (NBT) and 1 at. % Mn-doped NBT (Mn-NBT) crystals have been investigated by means of dielectric permittivity, conventional x-ray diffraction (XRD), and high-resolution synchrotron XRD and reciprocal space mapping. An R-R+T-T-C transition...

  • Direct observation of ferroelastic phase transition in Er-doped lanthanum pentaphosphate with.... Hu, Z.W.; Jiang, S.S.; Huang, P.Q.; Huang, X.R.; Feng, D.; Wang, J.Y.; Li, L.X. // Applied Physics Letters;1/3/1994, Vol. 64 Issue 1, p55 

    Examines the ferroelastic phase transition in erbium-doped lanthanum pentaphosphate crystals with synchrotron radiation. Characteristics of a classical second-order transition on topographs; Fluctuations of the domain wall numbers with temperature; Link of the domain wall fluctuation with order...

  • Features of Sound Propagation in the Vicinity of “Symmetry-Dictated” Isostructural Phase Transitions in Ferroelastics. Gufan, Yu. M.; Larin, E. S.; Sadkov, A. N. // Physics of the Solid State;Feb2000, Vol. 42 Issue 2, p337 

    Using a proper ferroelastic phase transition of the tension-compression type as an example, it is shown that, if the order parameter characterizing a structural phase transition allows the existence of a third-power invariant in the Landau potential, then there must be "symmetry-dictated"...

  • High-temperature ferroelastic phase transitions in Li–Na niobate compounds. Jiménez, B.; Castro, A.; Pardo, L. // Applied Physics Letters;6/2/2003, Vol. 82 Issue 22, p3940 

    Measurements of mechanoelastic properties as a function of the temperature of (Li[sub x]Na[sub 1-x])NbO[sub 3] (x≤0.12) ceramics in the paraelectric phase show a sequence of anomalies in the complex Young’s modulus Y[sup *]. These anomalies are associated with structural phase...

  • Investigations of morphotropic phase transformations in the solid solution of Bi...Ti...O... and... Jiang, A. Q.; Hu, Z. X. // Journal of Applied Physics;2/1/1999, Vol. 85 Issue 3, p1739 

    Presents information on a study which investigated the morphotropic phase transformations in the solid solution of bismuth compounds accompanied by defect dipole orientation and oxygen vacancy migration. Experimental details; Results and discussion; Conclusions.

  • Diffuse phase transition, piezoelectric and optical study of BiNaTiO ceramic. PARIJA, B; BADAPANDA, T; SENTHIL, V; ROUT, S; PANIGRAHI, S // Bulletin of Materials Science;Apr2012, Vol. 35 Issue 2, p197 

    Bismuth sodium titanate, BiNaTiO (BNT) is considered to be an excellent candidate for a key material of lead-free dielectric ceramics. In this study, we propose the dielectric and optical study of single phase BNT powder prepared by solid-state reaction route. The phase formation and structural...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics