Alexander Tagantsev

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Related publications (131)

Dielectric properties of 1 : 1 ordered Pb(Mg1/3Ta2/3)O-3 ceramics

Thermally induced coarsening of the chemically ordered domains in Pb(Mg1/3Ta2/3)O-3 (PMT) ceramics promotes the studying of dielectric behavior of the 1: 1 B-cations ordered PMN-style complex perovskites. In this work, PMT ceramics with different degrees o ...

2005

Susceptibility anomaly in films with bilinear coupling between order parameter and strain

Alexander Tagantsev

The dielectric response of a ferroelectric film with bilinear coupling between order parameter and strain is theoretically addressed. An exact solution for the total (lattice and domain contributions) dielectric permittivity of the system for the case wher ...

2005

Microscopic aspects of the region-by-region polarization reversal kinetics of polycrystalline ferroelectric Pb(Zr,Ti)O-3 films

Nava Setter, Alexander Tagantsev, Enrico Colla, Igor Stolichnov, Lisa Malin

The region-by-region polarization switching in ferroelectric Pb(Zr,Ti)O-3 thin films sandwiched between Pt electrodes has been directly observed using piezoelectric scanning probe microscopy. A resolution improved by one order-of-magnitude compared to the ...

2005

Effect of spontaneous polarization screening on dielectric response of ferroelectric polydomain films

Nava Setter, Alexander Tagantsev, Pavel Mokry

A theoretical study on the effect of spontaneous polarization screening on the dielectric response of ferroelectric films with 180 degrees domains going through the film thickness (through-domains) is presented. It has been shown by several researchers tha ...

2005

Surface-stimulated nucleation of reverse domains in ferroelectrics

Nava Setter, Alexander Tagantsev, Guido Gerra

We present a model for reverse domain nucleation in ferroelectrics, which takes into account ferroelectric-electrode coupling in both homogeneous and random cases. The model provides a solution to the coercivity paradox-i.e., the large discrepancy between ...

2005

Physical model of retention and temperature-dependent polarization reversal in ferroelectric films

Nava Setter, Alexander Tagantsev, Enrico Colla, Igor Stolichnov

The phenomenon of time-dependent polarization loss in poled ferroelectric capacitors, also known as retention, represents one of the most important reliability issues for ferroelectric nonvolatile memories. In a number of publications different ways to con ...

2005

Structural and dielectric properties of strain-controlled epitaxial SrTiO3 thin films by two-step growth technique

Paul Muralt, Nava Setter, Alexander Tagantsev, Konstantin Astafiev

Structural and dielectric properties of epitaxial SrTiO3 (STO) thin films on LaAlO3 substrates fabricated by a two-step growth technique using pulsed laser deposition were investigated by in situ and ex situ observations in terms of strain relaxation from ...

2005

Strain relaxation of epitaxial SrTiO3 thin films on LaAlO3 by two-step growth technique

Paul Muralt, Nava Setter, Alexander Tagantsev, Konstantin Astafiev

Using pulsed-laser deposition, a two-step growth technique was applied to epitaxial SrTiO3 (STO) thin films on LaAlO3 substrates providing a way to obtain an effective strain relaxation in these films otherwise strained due to lattice mismatch between film ...

2005

Quasi-Debye microwave loss as an intrinsic limitation of microwave performance of tunable components based on SrTiO3 and BaxSr1-xTiO3 ferroelectrics

Nava Setter, Alexander Tagantsev, Konstantin Astafiev

A model of the quasi-Debye loss mechanism in SrTiO3 and Ba0.6Sr0.4TiO3 perovskite ferroelectrics at microwave frequencies is presented. The field dependence and the size of the field-induced quasi-Debye loss contribution in SrTiO3 and Ba0.6Sr0.4TiO3 system ...

2005

Formation and thermal stability of quasi-amorphous thin films

Alexander Tagantsev

The thermal stability of amorphous ionic solids is usually attributed to kinetic considerations related to mass transport. However, there are a number of amorphous ionic solids, which have recently been described, whose unusual resistance to nucleation and ...

2005

Ferroelectric materials for microwave tunable applications (vol 11, pg 5, 2003)

Nava Setter, Alexander Tagantsev, Konstantin Astafiev

Kluwer Academic Publishers, Springer2005

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