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Xie, Aifang; Gu, Ben‐Yuan; Yang, Ge; Zhang, Zebo

doi:10.1103/physrevb.63.054104

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…The activities concerning nano-optical approaches aimed at ferroelectric systems have been performed only with respect to the reading or characterization of ferroelectrics and domain structures, i.e., their analysis by means of confocal optical microscopy 335 ͑a-SNOM͒ method allows higher-order modes, such as the second-harmonic ͑SH͒ signal, to be collected elucidating, for instance, strain effects in BaTiO 3 , 339 surface effects in PZT samples, 340 or periodically poled LiNbO 3 crystals, 341 the resolution generally lies around ϳ100 nm ͑Ref. 342͒ without much hope to go beyond this limit.…”

Section: Nanoscale Probing Of Ferroelectrics By Scanning Near-field Omentioning

confidence: 99%

Ferroelectric thin films: Review of materials, properties, and applications

Setter

Damjanović²,

Eng³

et al. 2006

Journal of Applied Physics

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An overview of the state of art in ferroelectric thin films is presented. First, we review applications: microsystems' applications, applications in high frequency electronics, and memories based on ferroelectric materials. The second section deals with materials, structure ͑domains, in particular͒, and size effects. Properties of thin films that are important for applications are then addressed: polarization reversal and properties related to the reliability of ferroelectric memories, piezoelectric nonlinearity of ferroelectric films which is relevant to microsystems' applications, and permittivity and loss in ferroelectric films-important in all applications and essential in high frequency devices. In the context of properties we also discuss nanoscale probing of ferroelectrics. Finally, we comment on two important emerging topics: multiferroic materials and ferroelectric one-dimensional nanostructures.

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Section: Nanoscale Probing Of Ferroelectrics By Scanning Near-field Omentioning

confidence: 99%

Ferroelectric thin films: Review of materials, properties, and applications

Setter

Damjanović²,

Eng³

et al. 2006

Journal of Applied Physics

1,620

1,000

View full text Add to dashboard Cite

show abstract

“…The main methods of studying the domain structures of ferroelectric thin films include surface modification [19], optical microscopy [19,20], scanning electron microscopy [19,21] and scanning probe microscopy [19,[21][22][23]. Many researchers used advanced optical microscopy techniques to observe domain structures in ferroelectric films, including polarization optical microscopy [3,24], near-field optical microscopy [20] and second-harmonic generation microscopy [25,26]. However, to the best of our knowledge, ferroelectric domains have not been studied by conventional optical microscopy in thin films, possibly due to their usually rough surfaces convoluted with particles, contaminants and other surface irregularities.…”

Section: The Corresponding Heterostructures Are Illustrated In Figurementioning

confidence: 99%

Design and preparation of stress-free epitaxial BaTiO₃polydomain films by RF magnetron sputtering

Zhang

Yuan

Wang

et al. 2012

Science and Technology of Advanced Materials

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Domain structures of BaTiO 3 thick films grown on (100) SrTiO 3 single-crystal substrates were engineered using an RF magnetron sputtering deposition process. By tuning the sputtering power and cooling rate and using an off-axis sputtering technique to prepare conducting perovskite oxide bottom electrode with heteroepitaxial quality, we have deposited epitaxial tetragonal single-domain and polydomain BaTiO 3 films with a self-assembled three-domain architecture. The electrical properties and microstructure of the BaTiO 3 films were characterized, and a c/a 1 /a 2 cellular polydomain structure was clearly observed in as-grown films by optical microscopy. Such a polydomain structure was a consequence of a complete relaxation of misfit stresses of the film. Engineering of this self-assembled microstructure has great potential in providing large, field-tunable pyroelectric and electromechanical responses in next-generation microelectronic devices and micro-electro-mechanical systems (MEMS).

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Depth resolved nonlinear optical nanoscopy

Mochán

López-Bastidas

Maytorena

et al. 2003

Physica Status Solidi (b)

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An electromagnetic field forced to vary along a plane with a spatial scale d much smaller than its free space wavelength l decays exponentially along its normal with a decay length $ d. This decay, similar to that of the wavefunction of tunneling electrons, has allowed the development of scanning near-field optical microscopes (SNOMs), reminiscent of scanning tunneling and atomic force microscopes, which have been able to resolve structures in the nanometer scale. However, existing SNOMs are unable to determine the depth below the surface from which the optical signals arise due to the monotonic decay of the optical evanescent probe fields. In this paper we study the optical second harmonic generation (SHG) produced by mixing of the evanescent fields produced by a SNOM tip. We show that employing an appropriately spatially-patterned tip, a non-monotonic non-linear probing field may be produced which has a maximum at a given distance beyond the tip, yielding a novel microscopy which may attain depth resolution with nanometric lengthscales. We estimate the size of the optical signal and we compare it with that arising in the usual SHG-based surface spectroscopy of centrosymmetric materials.

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Image of near-field second-harmonic generation for inversely poled mesoscopicLiNbO3domains

Cited by 5 publications

References 13 publications

Ferroelectric thin films: Review of materials, properties, and applications

Ferroelectric thin films: Review of materials, properties, and applications

Design and preparation of stress-free epitaxial BaTiO₃polydomain films by RF magnetron sputtering

Depth resolved nonlinear optical nanoscopy

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Image of near-field second-harmonic generation for inversely poled mesoscopicLiNbO3domains

Cited by 5 publications

References 13 publications

Ferroelectric thin films: Review of materials, properties, and applications

Ferroelectric thin films: Review of materials, properties, and applications

Design and preparation of stress-free epitaxial BaTiO3polydomain films by RF magnetron sputtering

Depth resolved nonlinear optical nanoscopy

Contact Info

Product

Resources

About

Design and preparation of stress-free epitaxial BaTiO₃polydomain films by RF magnetron sputtering