Generation of ferroelectric domains in atomic force microscope

Molotskii, M.

doi:10.1063/1.1567033

Cited by 105 publications

(118 citation statements)

References 15 publications

Supporting

Mentioning

113

Contrasting

Order By: Relevance

“…At , and the energy (8) coincides with the one calculated in [7]. Note, that exact expression for valid for arbitrary…”

mentioning

confidence: 78%

“…But it is obvious, that if the distance between the tip apex and the sample surface is much less than the tip radius of curvature [12], depolarization field causes noticeable free charges redistribution on the metallic tip apex and the depolarization field energy decreases. However these effects were not taken into account in the previous works [7]- [9]. In the present paper for the first time we consider the influence of all aforementioned effects: depolarization field created by the domain butt, Debye screening effects, field emission at high voltages and the depolarization field redistribution induced by the charged tip apex.…”

Section: Introductionmentioning

confidence: 98%

“…• If AFM tip does not touch the surface, its electric potential distribution inside the crystal could be analyzed using the effective point charge model [6], [7], [12] that ignores electroelastic coupling in the ferroelectric. However effective point charge did not influence at all on the depolarization field created by the domain.…”

Section: Introductionmentioning

confidence: 99%

“…• Theoretical modelling of equilibrium ferroelectric domains recorded by AFM tip proposed in the paper [7] considers tip electric field inside the perfect dielectric-ferroelectric with free surface, i.e. without any screening layer or upper electrode, but the semi-ellipsoidal domain depolarization field was calculated in Landauer model as if the perfect external screening expected.…”

Section: Introductionmentioning

confidence: 99%

“…Surface potentials are usually neglected in papers (see e.g. [7]). To our mind, they could not be neglected in comparison with…”

mentioning

confidence: 99%

See 4 more Smart Citations

Screening and size effects on the nanodomain tailoring in ferroelectrics semiconductors

Morozovska

Eliseev

2006

Phys. Rev. B

View full text Add to dashboard Cite

We calculate the realistic sizes of nano-domains recorded by the electric field of atomic force microscope tip in BaTiO 3 and LiNbO 3 ferroelectric-semiconductors in contrast to the over-estimated ones obtained in the previous works. We modified the existing models of domain formation allowing for the Debye screening, recharging of sluggish surface screening layers caused by emission current between the tip apex and the domain butt surface and the redistribution of domain depolarization field induced by the charged tip apex. We have shown that the depolarization field energy of the domain butt, Debye screening effects and field emission at high voltages lead to the essential decrease of the equilibrium domain sizes. We obtained, that the domain length and radius do not decrease continuously with voltage decrease: the domain appears with non-zero length and radius at definite critical voltage. Such "threshold" domain formation is similar to the first order phase transition and correlates with recent theoretical and experimental investigations.

show abstract

“…At , and the energy (8) coincides with the one calculated in [7]. Note, that exact expression for valid for arbitrary…”

mentioning

confidence: 78%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Surface potentials are usually neglected in papers (see e.g. [7]). To our mind, they could not be neglected in comparison with…”

mentioning

confidence: 99%

See 3 more Smart Citations

Screening and size effects on the nanodomain tailoring in ferroelectrics semiconductors

Morozovska

Eliseev

2006

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

Surface Domain Structures and Mesoscopic Phase Transition in Relaxor Ferroelectrics

Kholkin

Morozovska

Киселев

et al. 2011

Adv Funct Materials

119

101

View full text Add to dashboard Cite

International audienceRelaxor ferroelectrics are a prototypical example of ferroic systems in which interplay between atomic disorder and order parameters gives rise to emergence of unusual properties, including non-exponential relaxations, memory effects, polarization rotations, and broad spectrum of bias- and emperatureinduced phase transitions. Despite more than 40 years of extensive research following the original discovery of ferroelectric relaxors by the Smolensky group, the most basic aspect of these materials - the existence and nature of order parameter - has not been understood thoroughly. Using extensive imaging and spectroscopic studies by variable-temperature and time resolved piezoresponse force microscopy, we fi nd that the observed mesoscopic behavior is consistent with the presence of two effective order parameters describing dynamic and static parts of polarization, respectively. The static component gives rise to rich spatially ordered systems on the 100 nm length scales, and are only weakly responsive to electric fi eld. The surface of relaxors undergoes a mesoscopic symmetry breaking leading to the freezing of polarization fl uctuations and shift of corresponding transition temperature

show abstract

Polarization Dynamics in Ferroelectric Capacitors: Local Perspective on Emergent Collective Behavior and Memory Effects

Vasudevan

Marincel

Jesse³

et al. 2013

Adv Funct Materials

View full text Add to dashboard Cite

Functional properties of ferroelectric materials depend both on the residual domain states and on the mobility of domain walls in response to the applied electric and stress fi elds. This paper reviews the use of multidimensional scanning probe microscopy to assess these factors in the time-and voltage domains, with an emphasis on the manner in which domain walls respond collectively to stimuli. It is found that in many PbZr 1-x Ti x O 3 -based capacitors, domain wall motion is correlated over length scales that exceed the domain and grain sizes by orders of magnitude, suggesting emergent collective electromechanical behavior. The role of mechanical boundary conditions and fi eld history on the domain wall contributions and the stability of the ferroelectric domain state are discussed. FEATURE ARTICLEcoeffi cient, P is the polarization, and ε 0 is the permittivity of free space. Here, ε init ′ includes contributions both from the intrinsic response and reversible motion of the interfaces, while α′ quantifi es irreversible motions of the interfaces. The intrinsic contributions arise from fi eld-induced response of an ensemble of single domains.Rayleigh behavior was fi rst observed in magnetic materials. [ 8,9 ] There is an expanding literature that demonstrates that many ferroelectric samples behave as Rayleigh-like systems for fi eld excursions up to ≈ ½ the coercive fi eld, suggesting that Rayleigh-like behavior is common in ferroic systems. [ 7 , 10,11 ] Moreover, direct confi rmation that Rayleigh behavior is associated with motion of non-180

show abstract

Generation of ferroelectric domains in atomic force microscope

Cited by 105 publications

References 15 publications

Screening and size effects on the nanodomain tailoring in ferroelectrics semiconductors

Screening and size effects on the nanodomain tailoring in ferroelectrics semiconductors

Surface Domain Structures and Mesoscopic Phase Transition in Relaxor Ferroelectrics

Polarization Dynamics in Ferroelectric Capacitors: Local Perspective on Emergent Collective Behavior and Memory Effects

Contact Info

Product

Resources

About