Dielectric response of the charge-ordered two-dimensional nickelate La1.5Sr0.5NiO4

Rivas, J.; Rivas-Murias, B.; Fondado, A.; Mira, J.; Señarís-Rodríguez, M. A.
December 2004
Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6224
Academic Journal
We report the dielectric response of La1.5Sr0.5NiO4, a system that experiences charge ordering above room temperature (TCO=480 K) and a rearrangement of its charge-order pattern in the temperature region 160–200 K. A careful analysis of the role of the electrical contacts used, sample thickness, and grain size on the experimental data allows us to determine that this material exhibits a high intrinsic dielectric constant. In addition, the temperature dependence of the dielectric constant, that shows a maximum in the region of the rearrangement of the charge-order pattern, points to a link between the two phenomena.


Related Articles

  • Dielectric behavior of the system BaSn1-xNbxO3 (x<=0.10). Singh, Prabhakar; Kumar, Devendra; Parkash, Om // Journal of Applied Physics;4/1/2005, Vol. 97 Issue 7, p074103 

    Compositions with x<=0.10 have been synthesized in the system BaSn1-xNbxO3 by the solid state ceramic method. All the compositions have been found to be single phase solid solution having cubic structure. Lattice parameter for all the compositions remains almost the same. The optical micrographs...

  • Effect of interlayer exchange interaction and rare earth dilution on the electrical properties of two-dimensional system. Ahmed, M. A.; Gabal, M. A.; Radwan, F. A. // Journal of Materials Science;Sep2003, Vol. 38 Issue 17, p3677 

    The dielectric permittivity (ℇ) of the organic complexes of the general formula (CH2)n(NH3)2Mn1-xLaxCl4, n = 5, 6, 7 and 0.1 ≤ x ≤ 0.9 was studied at different temperatures as a function of the applied frequency. The obtained results contain more than one phase transition...

  • Preparation and Dielectric Properties of Bi1.5MNb1.5O7 (M = Cu, Mg, Mn, Ni, Zn) Pyrochlore Oxides. Sirotinkin, V. P.; Bush, A. A. // Inorganic Materials;Sep2003, Vol. 39 Issue 9, p974 

    Bi1.5MNb1.5O7 (M = Cu, Mg, Mn, Ni, Zn) oxides are prepared by solid-state reactions and are shown, by x-ray diffraction, to have cubic pyrochlore structure with lattice parameters in the range a = 10.495�10.570 �. The phases with M = Cu, Mg, Mn, and Ni are prepared and characterized...

  • Dielectric anomalies of the relaxor-based 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 single crystals. Haixia Wang; Haiqing Xu; Haosu Luo; Zhiwen Yin; Bokov, A. A.; Ye, Z.-G. // Applied Physics Letters;7/4/2005, Vol. 87 Issue 1, p012904 

    The temperature, frequency, and orientation dependence of complex electrical permittivity in 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 (0.9PMN-0.1PT) unpoled single crystals have been investigated in detail. The spontaneous ferroelectric-to-relaxor (FE-R) phase transition was observed in 0.9PMN-0.1PT...

  • Dielectric, magnetic, and magnetoelectric properties of laminated PbZr0.52Ti0.48O3/CoFe2O4 composite ceramics. Zhou, Jian-ping; He, Hong-cai; Shi, Zhan; Liu, Gang; Nan, Ce-Wen // Journal of Applied Physics;11/1/2006, Vol. 100 Issue 9, p094106 

    Multiferroic laminated composites of PbZr0.52Ti0.48O3(PZT)/CoFe2O4(CFO)/PbZr0.52Ti0.48O3 were prepared by conventional ceramic processing. The interdiffusion of the elements between different layers occurred, altering material properties. The dielectric behavior of such a sandwiched ceramic was...

  • Advanced process technology interconnect integration challenges. Armacost, Michael; Lee, John T. C. // Solid State Technology;Apr2005, Vol. 48 Issue 4, p28 

    The article reports on the challenges of 65nm and 45nm Cu/low-k interconnect integration. One of the main challenges of it is the development of processes to accommodate low-k dielectrics with k = 2.5-3.0. Key issues include dual-damascene patterning, line resistance, low-k integrity, chemical...

  • Dielectric permittivity and loss of hydroxyapatite screen-printed thick films. Silva, C. C.; Almeida, A. F. L.; de Oliveira, R. S.; Pinheiro, A. G.; Góes, J. C.; Sombra, A. S. B. // Journal of Materials Science;Sep2003, Vol. 38 Issue 18, p3713 

    In this paper we did a study on the structural and electrical properties of bioceramic hydroxiapatite (HA) thick films. The films were prepared in two layers using the screen printing technique on Al2O3 substrates. Mechanical alloying has been used successfully to produce nanocrystalline powders...

  • Transformation of Dielectric Properties and Appearance of Relaxation Behavior in Pb5(Ge1 – xSix)3O11 Crystals. Bush, A. A.; Kamentsev, K. E.; Mamin, R. F. // Journal of Experimental & Theoretical Physics;Jan2005, Vol. 100 Issue 1, p139 

    The special features of the dielectric properties and conduction of ferroelectric crystals of Pb5(Ge1 – xSix)3O11 (0 ≤ x ≤ 0.67) solid solutions were studied. Permittivity anomalies close to the temperatures T1 ≈ 260 K and T2 ≈ 130 K, the appearance of relaxator...

  • Wave losses in the metal-dielectric transmission line with wedge-shaped conductor. Svezhentsev, A. // Radiophysics & Quantum Electronics;Sep2008, Vol. 51 Issue 9, p681 

    We study wave losses in a metal-dielectric wedge-shaped transmission line in the form of a wedge-shaped metal conductor with circular dielectric cap. A distinctive feature of such a line is that it supports one fundamental mode not having the frequency cutoff. It is shown that the longitudinal...


Read the Article


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

Try another library?
Sign out of this library

Other Topics