TITLE

Thickness of the near-interface regions and central bulk ohmic resistivity in lead lanthanum zirconate titanate ferroelectric thin films

AUTHOR(S)
Chu, D. P.; Zhang, Z. G.; Migliorato, P.; McGregor, B. M.; Ohashi, K.; Hasegawa, K.; Shimoda, T.
PUB. DATE
December 2002
SOURCE
Applied Physics Letters;12/30/2002, Vol. 81 Issue 27, p5204
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have developed a method to separate the low-resistive near-interface regions (NIRs) from the high-resistive central bulk region (CBR) in a ferroelectric thin film. The NIR thickness and the CBR resistivity can thus be accurately determined. Using lanthanum-doped lead zirconate titanate films as an example, we show that the total thickness of the NIRs depends only on the electrode materials in use (Ir and Pt), while the CBR resistivity depends only on the impurity doping levels (La = 1.5% and 3%). The fact that the NIR is much narrower when Pt electrodes are used instead of Ir, and that the NIR resistivity is always considerably lower than the central bulk, suggest that the NIRs is probably originated from material nonstoichiometry/defects rather than the band bending at metal/insulator interfaces.
ACCESSION #
8737926

 

Related Articles

  • Degradation of ferroelectric SrBi[sub 2]Ta[sub 2]O[sub 9] materials under reducing conditions and... Shimakawa, Y.; Kubo, Y. // Applied Physics Letters;11/1/1999, Vol. 75 Issue 18, p2839 

    Examines the degradation of ferroelectric SrBi[sub 2]Ta[sub 2]O[sub 9] thin films under reducing conditions and their reaction with platinum electrodes. Decomposition of SrBi[sub 2]Ta[sub 2]O[sub 9] into bismuth metal and strontium-tantalum oxides in mercury; Acceleration of the decomposition...

  • Ferroelectric properties of (Ba[sub 0.5]Sr[sub 0.5])TiO[sub 3]/Pb(Zr[sub 0.52]Ti[sub 0.48])O[sub 3]/ (Ba[sub 0.5]Sr[sub 0.5])TiO[sub 3] thin films with platinum electrodes. Yan, Feng; Wang, Yening; Chan, Helen L. W.; Choy, Chung Loong // Applied Physics Letters;6/16/2003, Vol. 82 Issue 24, p4325 

    Multilayered Pt/(Ba[SUB0.5]Sr[SUB0.5])TiO[SUB3]/Pb(Zr[SUB0.52]Ti[SUB0.48])O[SUB3] /(Ba[SUB0.5]Sr[SUB0.5])TiO[SUB3]/Pt) (BST/PZT/BST) Thin films with different thicknesses of the BST layers were prepared by the pulsed-laser deposition method. The existence of a BST layer between the PZT and Pt...

  • Combined effect of thickness and stress on ferroelectric behavior of thin BaTiO[sub 3] films. Huang, G-F.; Berger, S. // Journal of Applied Physics;3/1/2003, Vol. 93 Issue 5, p2855 

    Thin BaTiO[sub 3] (BTO) layers were deposited by magnetron sputtering on a Si substrate between two thin LaNiO[sub 3] (LNO) electrodes (LNO/BTO/LNO/Si structure). The thickness of the BTO layer was varied between 35 nm and 1 µm. The stress, dielectric permittivity, and ferroelectric...

  • Effect of wall thickness on the ferroelastic domain size of BaTiO3. Catalan, G.; Lukyanchuk, I.; Schilling, A.; Gregg, J. M.; Scott, J. F. // Journal of Materials Science;Oct2009, Vol. 44 Issue 19, p5307 

    Extremely regular self-organized patterns of 90° ferroelastic domains have been reported in free-standing single crystal thin films of ferroelectric BaTiO3. Lukyanchuk et al . [Phys Rev B 79, 144111 (2009)] have recently shown that the domain size as a function of thickness for such free...

  • Polarization offset of homogeneous Bi3.15Nd0.85Ti3O12 ferroelectric thin films. Wu, Hao; Wu, Di; Li, Aidong // Journal of Applied Physics;Oct2008, Vol. 104 Issue 7, p074117 

    In this report, the polarization offset usually observed in compositionally graded ferroelectric thin films was observed in homogeneous Bi3.15Nd0.85Ti3O12 thin films sandwiched in Pt electrodes. The observed polarization offset was studied as functions of temperature and of the driving voltage...

  • Effects of bottom electrode conditions on ferroelectric properties of SrBi2Ta2O9 thin films. Ashikaga, Kinya; Inomata, Daisuke; Igarashi, Yasushi; Takaya, Koji; Kanehara, Takao; Kumagai, Tomoya; Koiwa, Ichiro // Journal of Applied Physics;10/15/2006, Vol. 100 Issue 8, p086106 

    The effect of adhesion layers under the bottom electrodes on ferroelectric characteristics of SrBi2Ta2O9 (SBT) thin films synthesized by sol-gel method was investigated. The remanent polarization (2Pr) of SBT films was found to be smaller for the tantalum oxide (TaOx) adhesion layer than for the...

  • Separation of the Schottky barrier and polarization effects on the photocurrent of Pt sandwiched Pb(Zr0.20Ti0.80)O3 films. Fengang Zheng; Jie Xu; Liang Fang; Mingrong Shen; Xinglong Wu // Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p172101 

    Photoelectric behavior of Pt sandwiched Pb(Zr0.20Ti0.80)TiO3 (PZT) films deposited on Pt/Ti/SiO2/Si substrates by a sol-gel method was investigated by testing the short-circuit photocurrent under different film thicknesses. By poling the films step by step with increased magnitude and alternated...

  • Evaluating Mechanical Stresses in Thin-Film Structures with Ferroelectric PZT Films. Pronin, I. P.; Kaptelov, E. Yu.; Khosina, N. G.; Afanas'ev, V. P. // Technical Physics Letters;Mar2004, Vol. 30 Issue 3, p228 

    A model of mechanical stresses acting upon a ferroelectric film in a thin-film capacitor structure of the Si–SiO2–Pt–PZT–Pt type is proposed. An analysis of this model showed that, in most cases, thin PZT films with thicknesses within 100–200 nm (used in the...

  • Effects of thickness on the polarization states in epitaxial ferroelectric thin films. Wang, Jie; Völker, Benjamin; Kamlah, Marc; Zhang, Tong-Yi // Acta Mechanica;Jun2013, Vol. 224 Issue 6, p1225 

    The effect of thickness and depolarization field on the polarization states of epitaxial ferroelectric single-domain thin films with anisotropic in-plane misfit strains is studied by using a nonlinear thermodynamic theory with the thickness-dependent Curie temperature. The 'thickness-misfit...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics