Structure-property relationships in self-assembled metalorganic chemical vapor deposition–grown CoFe2O4–PbTiO3 multiferroic nanocomposites using three-dimensional characterization

Pan, Mengchun; Liu, Yuzi; Bai, G. R.; Hong, Seungbum; Dravid, Vinayak P.; Petford‐Long, Amanda K.

doi:10.1063/1.3615888

Cited by 13 publications

(8 citation statements)

References 33 publications

(52 reference statements)

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“…Karpinsky et al measured 33 E to be 0.1 mV cm -1 Oe -1 for a BiFeO3-BaTiO3 particulate composite film in a 50:50 ratio 20 , all from piezo-response force microscopy (PFM) measurements. 21,22 ME composite devices convert magnetic energy to electrical energy through a two-step process: magnetic energy is first converted to mechanical energy via magnetostriction in the magnetic part of the ME composite, and then the mechanical energy is converted to electrical energy via the piezoelectric component through strain-coupling. These devices have the potential to be used in magnetic energy harvesting in light of the demand for flexible, low-cost, lightweight and even biocompatible devices [23][24][25][26] .…”

Section: Introductionmentioning

confidence: 99%

Coaxial Nickel–Poly(vinylidene fluoride trifluoroethylene) Nanowires for Magnetoelectric Applications

Boughey

Calahorra

Datta

et al. 2018

ACS Appl. Nano Mater.

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Magnetoelectric (ME) composite materials, in which the coupling between magnetostricitve and piezoelectric effects is achieved, are potential candidates for multifunctional devices where the interplay between electrical, magnetic and mechanical properties of these structures can be fully exploited. Nanostructured composites are particularly interesting due to the enhancement of ME coupling expected at the nanoscale. However, direct studies of ME coupling in nanocomposites by scanning probe techniques are rare due to the complex interplay of forces at play, including those arising from electrostatic, magnetic and electromechanical interactions. In this work, the ME coupling of coaxial nickel-polyvinylidene fluoride trifluoroethylene [Ni-P(VDF-TrFE)] composite nanowires, fabricated by a scalable template-wetting based technique, is studied using a systematic sequence of scanning probe techniques. Individual ME nanowires were subjected to an electric field sufficient for ferroelectric poling in piezoresponse force microscopy (PFM) mode, while magnetic force microscopy (MFM) was used 2 to measure localised changes in magnetization as a result of electrical poling. Kelvin probe force microscopy (KPFM) measurements of surface potential were conducted to eliminate for the effect of contact potential differences during these measurements. An inverse, static, magnetoelectric coupling coefficient of ~1 x 10-11 s m-1 was found in our coaxial nanocomposite nanowires, comparable to other types of planar composites studied in this work, despite having an inferior piezoelectric-to-magnetostrictive volume ratio. The efficient ME coupling in our coaxial nanowires is attributed to the larger surface-to-volume interfacial contact between Ni and P(VDF-TrFE), and is promising for future integration into ME composite devices such as magnetic field sensors or energy harvesters.

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Section: Introductionmentioning

confidence: 99%

Coaxial Nickel–Poly(vinylidene fluoride trifluoroethylene) Nanowires for Magnetoelectric Applications

Boughey

Calahorra

Datta

et al. 2018

ACS Appl. Nano Mater.

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“…For example, Pan et al embedded ferrimagnetic CoFe 2 O 4 branched filaments in a piezoelectric PbTiO 3 matrix by a one-step CVD process on SrTiO 3 (001), based on the simultaneous vaporization of Co(dpm) 3 , Fe(dpm) 3 , Pb(OEt) 4 (OEt = ethoxy) and Ti(O t Bu) 4 . 109 CoFe 2 O 4 filaments reduced the CoFe 2 O 4 /PbTiO 3 interfacial strain and induced a perpendicular magnetic anisotropy. Nevertheless, due to the increased system complexity, research efforts in this area are still highly required to attain a deeper understanding of the system structure-property interrelations.…”

Section: Oxide/oxide Nanomaterialsmentioning

confidence: 99%

“…As already discussed in the Introduction, the design and preparation of nanocomposites based on SC oxides is an important goal for various applications, such as magnetism, optoelectronics, photocatalysis and gas sensing. 12,15,30,35,36,38,109 In line with motivations fuelling the attention on metal/oxide systems, some efforts in the fabrication of oxide/oxide nanostructures involve coupling of a target matrix (for instance, Al 2 O 3 , ZnO or ZrO 2 ) with a catalytic promoter (such as MoO 3 , TiO 2 or CeO 2 ), and are often aimed at achieving an enhanced charge carrier lifetime. 36,96,97,110,111 In this context, p-n composite SCs have come under intense scrutiny due to the build-up of an electric field at the junction interfaces.…”

Section: Oxide/oxide Nanomaterialsmentioning

confidence: 99%

Multi-component oxide nanosystems by Chemical Vapor Deposition and related routes: challenges and perspectives

et al. 2012

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Multi-component oxide-based nanosystems are of primary technological importance for various applications of current interest, spanning from optoelectronics to catalysis, from chemical sensing to energy conversion and storage. Such a broad range of functional utilizations results from the joint features of nano-organized systems and the synergistic combination of constituent properties, which, in turn, can be tailored by means of flexible and scalable preparative strategies. An amenable synthetic option potentially meeting these standards is Chemical Vapor Deposition (CVD), either as such or in combination with other fabrication routes. To this regard, the present highlight provides an overview on the CVD-based growth and applicative potential of oxide-based nanocomposite systems. Special attention is devoted to three different categories, i.e. metal/oxide, oxide/oxide and carbon/oxide nanomaterials. For each of them, selected results on synthesis/applications of composite architectures with tailored morphology are presented, trying to address actual challenges and future trends in the field

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“…A study of growing these self‐assembled structures on different substrate planes was carried out with CFO‐PT (cobalt ferrite – lead titanate) multiferroics on strontium titanate (STO) substrates of (001) and (110) orientations . The resulting morphology of the nanorods was dependant on the STO substrate orientation, which was rationalized through a thermodynamic theory based on the ferroelastic anisotropy in the two different systems.…”

Section: Alternatives To Fib Nanostructuringmentioning

confidence: 99%

Nanostructuring Ferroelectrics via Focused Ion Beam Methodologies

Burns

Gregg

Valanoor

2016

Adv Funct Materials

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As we reach the physical limit of Moore's law and silicon based electronics, alternative schemes for memory and sensor devices are being proposed on a regular basis. The properties of ferroelectric materials on the nanoscale is key to developing device applications of this intriguing material class, and has been readily pursued in recent times. One of the most significant techniques with which nanostructuring is achieved is the focused-ion-beam (FIB) microscope. Alongside nanoscale characterization obtained from piezoresponse force microscopy, the FIB has become a powerful tool in the search for first principles understanding of the ferroelectric phenomena. This review explores a brief history of the relationship between the FIB and ferroelectrics, the fascinating properties it has unveiled, and some alternative nanostructuring techniques.

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Structure-property relationships in self-assembled metalorganic chemical vapor deposition–grown CoFe2O4–PbTiO3 multiferroic nanocomposites using three-dimensional characterization

Abstract: Adjustable magnetoelectric effect of self-assembled vertical multiferroic nanocomposite films by the in-plane misfit strain and ferromagnetic volume fraction

Cited by 13 publications

References 33 publications

Coaxial Nickel–Poly(vinylidene fluoride trifluoroethylene) Nanowires for Magnetoelectric Applications

Coaxial Nickel–Poly(vinylidene fluoride trifluoroethylene) Nanowires for Magnetoelectric Applications

Multi-component oxide nanosystems by Chemical Vapor Deposition and related routes: challenges and perspectives

Nanostructuring Ferroelectrics via Focused Ion Beam Methodologies

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