Magnetic, electrical and thermal properties of La0.80Sr0.20(MnyCo1$minus;y)O3

Suzuki, Kazuyoshi; Fujishiro, Hiroyuki; Kashiwada, Yohei; Fujine, Yosuke; Ikebe, Manabu

doi:10.1016/s0921-4526(02)02603-0

Cited by 12 publications

(6 citation statements)

References 3 publications

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“…The effect of each of the substitution is different and aids in improving the physical parameter required for a good TE materials. The idea of double substitutions was introduced with a view that substitution at La site will increase the electrical conductivity and that at Co site enhances Seebeck coefficient [38]. There have also been attempts to investigate the effect of single-site substitution and co-substitution on TE properties in rare earth manganite systems [34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution

Kumar

Sivaprahsam

Thakur

2018

Journal of Alloys and Compounds

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We report thermoelectric (TE) properties of Sr and Mn co-substituted LaCoO3 system from room temperature to 700 K. Sr-substitutions at La and Mn at Co site in LaCoO3 improves the electrical conductivity (σ). Thermal conductivity (κ) of all the samples increases with the increase in temperature but decreases with the substitution in LaCoO3. An estimation of the electronic thermal conductivity (κe) suggests a dominant phonon contribution to thermal conductivity in this system. A maximum value of the figure of merit is 0.14 at 480 K for La0.95Sr0.05Co0.95Mn0.05O3.

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Section: Introductionmentioning

confidence: 99%

Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution

Kumar

Sivaprahsam

Thakur

2018

Journal of Alloys and Compounds

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“…On the other hand doping at the manganese site directly affects the conduction mechanism and hence one can tailor the properties of these manganites in a more effective way. There have been numerous studies of Mn-site doping with foreign elements [7][8][9][10][11]. It has been shown, for instance, that substitution of Mn by trivalent and tetravalent elements strongly affects the electronic, transport and magnetic behavior of these compounds [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Structural studies and magnetic and transport properties of Cr-substituted La0.67Ba0.33Mn1−xCrxO3 (0≤x≤0.15) perovskites

Peña¹,

Kallel²,

Guizouarn³

et al. 2012

Journal of Alloys and Compounds

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“…Maximum electrical output power can be extracted when the resistance load is equal to the internal resistance of the module P max = E 2 0 /4R in . A simple 'manufacturing factor' can be estimated [15] considering the ratio µ = P max /P max ideal .…”

Section: Methodsmentioning

confidence: 99%

Fabrication and properties of four-leg oxide thermoelectric modules

Reddy¹,

Noudem²,

Hébert³

et al. 2005

J. Phys. D: Appl. Phys.

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Four-leg oxide thermoelectric modules consisting of two pairs of p type Ca3Co4O9 and n type Ca0.95Sm0.05MnO3 bulks of 4 × 4 mm2 cross-section and 5 and 10 mm heights were constructed and their performance discussed. The modules were assembled using silver paste wherein the thermoelectric elements are electrically connected in series by silver strips and placed between alumina plates that are in parallel thermally. The performance was evaluated up to a maximum temperature of 1000 K with thermal differences of up to 925 K between the hot and cold plates. An open circuit voltage of 400 mV was generated at an operating temperature of 1000 K with a temperature difference of 925 K and internal resistance of 1.27 Ω in the case of long legs module. A maximum output power of 31.5 mW was obtained and the power decreased to 24.5 mW in a module where the height of the thermoelectric elements is halved. The quality of the modules is discussed by introducing a manufacturing factor representing the cumulative influence of various factors of the fabrication process.

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Magnetic, electrical and thermal properties of La0.80Sr0.20(MnyCo1$minus;y)O3

Cited by 12 publications

References 3 publications

Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution

Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution

Structural studies and magnetic and transport properties of Cr-substituted La0.67Ba0.33Mn1−xCrxO3 (0≤x≤0.15) perovskites

Fabrication and properties of four-leg oxide thermoelectric modules

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