Grain morphology and size disorder effect on the transport and magnetotransport in Sol–Gel grown nanostructured manganites

Kuberkar, D. G.; Doshi, R.R.; Solanki, P.S.; Khachar, Uma; Vagadia, Megha; Ravalia, Ashish; Ganesan, V.

doi:10.1016/j.apsusc.2012.05.149

Cited by 88 publications

(20 citation statements)

References 29 publications

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“…Thus, the polycrystalline La 0.67-Ca 0.33 MnO 3 with high TCR value has the potential to be used in the room temperature bolometer. It has already been demonstrated that the synthesis method, sintering process and ion doping (e.g., Ag) can significantly change the electrical properties and transport behavior of manganites [17][18][19]. Currently, several synthesis methods including sol-gel, co-precipitation and solid-state reaction are used to prepare the LCMO ceramic materials.…”

Section: Introductionmentioning

confidence: 99%

Search for high temperature coefficient of resistance La2/3Ca1/3MnO3 polycrystalline ceramics

Cai

Cui

et al. 2014

Appl. Phys. A

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La 2/3 Ca 1/3 MnO 3 polycrystalline ceramics were synthesized by sol-gel method. Sharp temperature coefficient of resistance (TCR) variation (with peak value up to 22 %) has been observed near the metal-insulator transition temperature T MI (273 K) for the sample sintered at 1,450°C. This TCR value is much higher than the previously reported values for the undoped and Ag-doped La 0.67 Ca 0.33 MnO 3 samples and is comparable to the optimized thin films. It was concluded that the improved physical properties of the La 0.67 Ca 0.33 MnO 3 material are due to its improved microstructure and homogeneity.

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Section: Introductionmentioning

confidence: 99%

Search for high temperature coefficient of resistance La2/3Ca1/3MnO3 polycrystalline ceramics

Cai

Cui

et al. 2014

Appl. Phys. A

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“…Also, rare earth ion substituted at La-site in La 0.7 Sr 0.3 MnO 3 (in the form of thin films, multilayers, heterostructures and nanostructured devices) has been studied in the form of nanostructured thin film devices [21,22], heterostructures [5,8,9], p-n junction devices [18,19] and multilayers [3,23] for their transport and magnetotransport properties. Few reports are available on the studies on nanostructured La 0.7 Sr 0.3 MnO 3 manganite synthesized using sol-gel [24], citrate-gel [25], co-precipitation [17], etc.…”

Section: Introductionmentioning

confidence: 99%

“…On one hand, the suitable potential of La 0.7 Sr 0.3 MnO 3 for practical applications has been reported, on the other hand, Nd 0.7 Sr 0.3 MnO 3 manganite has also been studied in the form of nanostructures and thin films for large magnetoresistance (MR) ratio under relatively low applied fields exhibited by them [18,26].…”

Section: Introductionmentioning

confidence: 99%

Structure and microstructure dependent transport and magnetic properties of sol–gel grown nanostructured La 0.6 Nd 0.1 Sr 0.3 MnO 3 manganites: Role of oxygen

Kansara

Dhruv

Joshi

et al. 2015

Applied Surface Science

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“…Nanophasic Y 0.95 Ca 0.05 MnO 3 (YCMO) were grown using simple and low cost sol-gel technique Kuberkar et al 2012 O] were taken as starting materials in appropriate stoichiometric ratio. The precursor solution was prepared by dissolving the constituents (precursors/starting materials) in double distilled water (DDW) and acetic acid (AA) with desired stoichiometric composition.…”

Section: Methodsmentioning

confidence: 99%

Size induced tuning of dielectric behavior in nanostructured Y0.95Ca0.05MnO3 compounds

Shah

2013

Appl Nanosci

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Size is the key factor of nanostructured materials, since all the structural, transport, electrical, magnetic and other physical properties can be tuned by this factor of materials. Only the condition is to choose appropriate inexpensive scale-processing method for material synthesis which offers good control over the stoichiometry, morphology and particle size distribution. Present communication deals with the studies on the sol-gel grown Y 0.95 Ca 0.05 MnO 3 (YCMO) nanostructured compounds for their size-induced tuning of dielectric behavior. Structural studies reveal the single phasic nature with improved crystallite size with sintering temperature. Dielectric constant (real and imaginary) is found to increase with temperature and crystallite size/sintering temperature. High dielectric loss has been observed in the present system. Size dependent activation energy (E a ), obtained from modulus measurement, showing the increase in E a with crystallite size. The variation in various dielectric parameters and E a has been discussed in the light of crystallite size, crystallite boundaries, oxygen vacancies and charge carrier hopping.

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Grain morphology and size disorder effect on the transport and magnetotransport in Sol–Gel grown nanostructured manganites

Cited by 88 publications

References 29 publications

Search for high temperature coefficient of resistance La2/3Ca1/3MnO3 polycrystalline ceramics

Search for high temperature coefficient of resistance La2/3Ca1/3MnO3 polycrystalline ceramics

Structure and microstructure dependent transport and magnetic properties of sol–gel grown nanostructured La 0.6 Nd 0.1 Sr 0.3 MnO 3 manganites: Role of oxygen

Size induced tuning of dielectric behavior in nanostructured Y0.95Ca0.05MnO3 compounds

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