Erratum: Strain-Gradient-Induced Polarization in SrTiO[sub 3] Single Crystals [Phys. Rev. Lett. [bold 99], 167601 (2007)]
P. Zubko, G. Catalan, A. Buckley, P. R. L. Welche, and J. F. Scott
... [Phys. Rev. Lett. 100, 199906 (2008)] published Fri May 16, 2008.
Polarization rotation transitions in anisotropically strained SrTiO[sub 3] thin films
A. Vasudevarao, Sava Denev, Michael D. Biegalski, Yulan Li, Long-Qing Chen et al.
Commensurately strained epitaxial SrTiO thin films on a GdScO substrate with anisotropic in-plane tensile strains of 1.46% and 1.59% were grown. By using optical second harmonic generation and polarization measurements, a ferroelectric transition from a tetragonal 4/mmm phase to a ferroelectric mm2 ... [Appl. Phys. Lett. 92, 192902 (2008)] published Thu May 15, 2008.
Low leakage current and enhanced ferroelectric properties of Ti and Zn codoped BiFeO[sub 3] thin film
G. D. Hu, S. H. Fan, C. H. Yang, and W. B. Wu
BiFeO (BFO), Ti(2%)-doped BFO (BFTO), Zn(2%)-doped BFO (BFZO), as well as Ti (1%) and Zn (1%) codoped BFO (BFTZO) films were deposited on Pt/Ti/SiO/Si substrates by using a metal organic decomposition process. Well saturated P-E hysteresis loops can be obtained in BFZO and BFTZO films due to their l ... [Appl. Phys. Lett. 92, 192905 (2008)] published Thu May 15, 2008.
Short-range and long-range contributions to the size effect in metal-ferroelectric-metal heterostructures
A. K. Tagantsev, G. Gerra, and N. Setter
The size-effect problem in metal-ferroelectric-metal heterostructures is analyzed in terms of the multiscale schemewhich combines phenomenology and first-principles calculationsrecently developed by the authors. We demonstrate how this effect can be separated into two distinct contributions: a long- ... [Phys. Rev. B 77, 174111 (2008)] published Thu May 15, 2008.
Electrostatic resonances of a negative-permittivity hemisphere
Henrik Kettunen, Henrik Wallen, and Ari Sihvola
This article studies the electric response of an electrically small hemispherical object with negative permittivity by computing its polarizability which is determined by two orthogonal components, the axial one and the transverse one. A certain range of negative permittivity values is found where t ... [J. Appl. Phys. 103, 094112 (2008)] published Wed May 14, 2008.
Computer simulation of ferroelectric domain structures in epitaxial BiFeO[sub 3] thin films
J. X. Zhang, Y. L. Li, S. Choudhury, L. Q. Chen, Y. H. Chu et al.
Ferroelectric domain structures of (001), (101), and (111) oriented epitaxial BiFeO thin films were studied by using the phase-field approach. Long-range elastic and electrostatic interactions were taken into account. The effects of various types of substrate constraint on the domain morphologies we ... [J. Appl. Phys. 103, 094111 (2008)] published Tue May 13, 2008.
Effect of Mn doping on the electric and dielectric properties of ZnO epitaxial films
T. Oshio, K. Masuko, A. Ashida, T. Yoshimura, and N. Fujimura
The Mn doping effects on the electric and dielectric properties of ZnO epitaxial films were studied. To optimize the stoichiometry of undoped ZnO film prepared by pulsed laser deposition, we evaluated the intensity ratio of the optical emission from excited oxygen atoms (O) and excited zinc atoms (Z ... [J. Appl. Phys. 103, 093717 (2008)] published Tue May 13, 2008.
Giant dielectric response in Pb(Zr,Ti)O[sub 3]--Pb[sub 2]Ru[sub 2]O[sub 6.5] all-ceramic percolative composite
Vid Bobnar, Marko Hrovat, Janez Holc, and Marija Kosec
An exceptionally high dielectric constant was obtained by making use of the conductive percolative phenomenon in all-ceramic composite made of conductive PbRuO and ferroelectric Pb(Zr,Ti)O perovskite systems. The dielectric constant in Pb(Zr,Ti)OPbRuO composite actually diverges on approaching the p ... [Appl. Phys. Lett. 92, 182911 (2008)] published Fri May 9, 2008.
Bi[sub 1.5]Zn[sub 1.0]Nb[sub 1.5]O[sub 7]/Mn-doped Ba[sub 0.6]Sr[sub 0.4]TiO[sub 3] heterolayered thin films with enhanced tunable performance
Wangyang Fu, Hong Wang, Lingzhu Cao, and Yueliang Zhou
BiZnNbO/Mn-doped BaSrTiO heterolayered thin films were deliberately deposited on Pt/Ti/SiO/Si substrate by pulsed laser deposition and used as tunable materials. The hetero-layered films exhibit prominently enhanced tunable performance compared to previous reported dielectric/ferroelectric layered c ... [Appl. Phys. Lett. 92, 182910 (2008)] published Fri May 9, 2008.
Domain dynamics in piezoresponse force spectroscopy: Quantitative deconvolution and hysteresis loop fine structure
Igor K. Bdikin, Andrei L. Kholkin, Anna N. Morozovska, Sergei V. Svechnikov, Seung-Hyun Kim et al.
Domain dynamics in the piezoresponse force spectroscopy (PFS) experiment is studied using the combination of local hysteresis loop acquisition with simultaneous domain imaging. The analytical theory for PFS signal from domain of arbitrary cross section and length is developed for the analysis of exp ... [Appl. Phys. Lett. 92, 182909 (2008)] published Fri May 9, 2008.