Stationary domain wall contribution to enhanced ferroelectric susceptibility

Xu, Ruijuan; Karthik, J.; Damodaran, Anoop R.; Martin, Lane W.

doi:10.1038/ncomms4120

Cited by 92 publications

(81 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PbZr 0.2 Ti 0.8 O 3 films reveals that ferroelectric switching characteristics and domain wall contributions to dielectric permittivity can be dramatically tuned by film crystal orientation. 22,30 To ultimately comprehend how the crystal orientations of ferroelectric films affect their physical properties, the insights and understandings from theoretical calculations are also necessary besides experimental data. The typical theoretical models include the Landau-type phenomenological theory, phase field simulation and first-principles calculation.…”

Section: Introductionmentioning

confidence: 99%

Effect of crystal orientation on the phase diagrams, dielectric and piezoelectric properties of epitaxial BaTiO3 thin films

Zhang

et al. 2016

AIP Advances

View full text Add to dashboard Cite

The influence of crystal orientations on the phase diagrams, dielectric and piezoelectric properties of epitaxial BaTiO3 thin films has been investigated using an expanded nonlinear thermodynamic theory. The calculations reveal that crystal orientation has significant influence on the phase stability and phase transitions in the misfit strain-temperature phase diagrams. In particular, the (110) orientation leads to a lower symmetry and more complicated phase transition than the (111) orientation in BaTiO3 films. The increase of compressive strain will dramatically enhance the Curie temperature TC of (110)-oriented BaTiO3 films, which matches well with previous experimental data. The polarization components experience a great change across the boundaries of different phases at room temperature in both (110)- and (111)-oriented films, which leads to the huge dielectric and piezoelectric responses. A good agreement is found between the present thermodynamics calculation and previous first-principles calculations. Our work provides an insight into how to use crystal orientation, epitaxial strain and temperature to tune the structure and properties of ferroelectrics.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of crystal orientation on the phase diagrams, dielectric and piezoelectric properties of epitaxial BaTiO3 thin films

Zhang

et al. 2016

AIP Advances

View full text Add to dashboard Cite

show abstract

“…7(h)]. [168,169] Alternatively, dense ordered ferroelastic domain structures capable of exhibiting collective phenomenon can be obtained by manipulating the geometry, dimension, and elastic boundary conditions of ferroelectric structures. [170] This approach has been successfully demonstrated in magnetic comb structures where domain walls can be driven at high velocities, [171] but has only been minimally exploited in ferroelectrics.…”

Section: Reshaping Ferroic Physics-exploring Exotic and Emergent Polamentioning

confidence: 99%

Frontiers in strain-engineered multifunctional ferroic materials

Agar

Pandya

et al. 2016

MRS Communications

Self Cite

View full text Add to dashboard Cite

Multifunctional, complex oxides capable of exhibiting highly-coupled electrical, mechanical, thermal, and magnetic susceptibilities have been pursued to address a range of salient technological challenges. Today, efforts are focused on addressing the pressing needs of a range of applications and identifying, understanding, and controlling materials with the potential for enhanced or novel responses. In this prospective, we highlight important developments in theoretical and computational techniques, materials synthesis, and characterization techniques. We explore how these new approaches could revolutionize our ability to discover, probe, and engineer these materials and provide a context for new arenas where these materials might make an impact.

show abstract

“…Polarization P and magnetization M are the key physical quantities to understand the eff and eff inside the system. In macroscopic view, the polarization P measures how a dielectric responds to the E field [17][18][19]25,[31][32][33] (Fig. 3).…”

Section: Formula Of Modelmentioning

confidence: 99%

Studies of permittivity and permeability of dielectric matrix with cuboid metallic inclusions in different orientations

Njoku

Whittow

et al. 2014

J. Adv. Dielect.

View full text Add to dashboard Cite

In this paper, we investigate the possibility of using the heterogeneous materials, with cuboid metallic inclusions inside a dielectric substrate (host) to control the effective permittivity. We find that in the gigahertz range, such a material demonstrates a significantly larger permittivity compared to the pure dielectric substrate. Three principal orientations of microscale cuboid inclusions have been taken into account in this study. The highest permittivity is observed when the orientation provides the largest polarization (electric dipole moment). The detrimental side effect of the metallic inclusion, which leads to the decrease of the effective magnetic permeability, can be suppressed by the proper choice of shape and orientation of the inclusions. This choice can in fact reduce the induced current and hence maximize the permeability. The dissipative losses are shown to be negligible in the relevant range of frequencies and cuboid dimensions.

show abstract

Stationary domain wall contribution to enhanced ferroelectric susceptibility

Cited by 92 publications

References 52 publications

Effect of crystal orientation on the phase diagrams, dielectric and piezoelectric properties of epitaxial BaTiO3 thin films

Effect of crystal orientation on the phase diagrams, dielectric and piezoelectric properties of epitaxial BaTiO3 thin films

Frontiers in strain-engineered multifunctional ferroic materials

Studies of permittivity and permeability of dielectric matrix with cuboid metallic inclusions in different orientations

Contact Info

Product

Resources

About