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Thermoelectric powe...
Thermoelectric power and resistivity of Nd1-xCaxBa2Cu3Oy and Nd1-xLaxBa2Cu3Oy
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- Ghorbani, Shaban Reza (author)
- KTH,Fysik,Fasta tillståndets fysik
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- Andersson, Magnus (author)
- KTH,Fysik,Fasta tillståndets fysik
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- Lundqvist, Pieter (author)
- KTH,Fysik,Fasta tillståndets fysik
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- Valldor, M. (author)
- Arrheniuslaboratoriet, Stockholms Universitet,Oorganisk kemi
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- Rapp, Östen (author)
- KTH,Fysik,Fasta tillståndets fysik
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(creator_code:org_t)
- 2000
- 2000
- English.
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In: Physica. C, Superconductivity. - 0921-4534 .- 1873-2143. ; 339:4, s. 245-252
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The structural and transport properties of Nd1-xCaxBa2Cu3Oy (x = 0.0, 0.03, 0.06, and 0.10) and Nd1-xLax- Ba2Cu3Oy. (x nominally 0.0, 0.05, 0.10, and 0.15) have been studied by X-ray powder diffraction, electrical resistivity, and thermoelectric power measurements. In both series, the a- and b-axis lattice parameters decrease with increasing doping while the c-axis lattice parameter increases. The transport properties suggest improved metallic behaviour with increasing Ca doping in contrast to La doping. An anomalous sharp peak in the thermoelectric power close to T-c was observed, which depended on the doping content. We analysed the thermoelectric power as a function of temperature with a two-band model with an additional linear T term. An excellent agreement between model and data was obtained.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- thermoelectric power
- NdBa2Cu3
- substitution
- superconducting transition
- oxygen stoichiometry
- normal-state
- temperature
- tc
- yba2cu3o7-delta
- thermopower
- charge
- system
Publication and Content Type
- ref (subject category)
- art (subject category)
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