Sökning: onr:"swepub:oai:DiVA.org:kth-20154" >
Thermoelectric powe...
Thermoelectric power and resistivity of Nd1-xCaxBa2Cu3Oy and Nd1-xLaxBa2Cu3Oy
-
- Ghorbani, Shaban Reza (författare)
- KTH,Fysik,Fasta tillståndets fysik
-
- Andersson, Magnus (författare)
- KTH,Fysik,Fasta tillståndets fysik
-
- Lundqvist, Pieter (författare)
- KTH,Fysik,Fasta tillståndets fysik
-
visa fler...
-
- Valldor, M. (författare)
- Arrheniuslaboratoriet, Stockholms Universitet,Oorganisk kemi
-
- Rapp, Östen (författare)
- KTH,Fysik,Fasta tillståndets fysik
-
visa färre...
-
(creator_code:org_t)
- 2000
- 2000
- Engelska.
-
Ingår i: Physica. C, Superconductivity. - 0921-4534 .- 1873-2143. ; 339:4, s. 245-252
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- thermoelectric power
- NdBa2Cu3
- substitution
- superconducting transition
- oxygen stoichiometry
- normal-state
- temperature
- tc
- yba2cu3o7-delta
- thermopower
- charge
- system
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas