Results 111 to 120 of about 784 (125)

Measurements of the thermopower coefficient above the superconducting transition in polycrystalline Y₁Ba₂Cu₃O_{7- delta}: absence of appreciable fluctuation effects

Journal of Physics: Condensed Matter, 1993
Reports on detailed measurements of the thermoelectric power coefficient, L(T) identical to S(T) sigma (T), relating the thermoelectric power S(T) to the electrical conductivity sigma (T) in three polycrystalline Y1Ba2Cu3O7- delta samples. All the samples have almost the same composition ( delta
O Cabeza, A Pomar, A Diaz, C Torron, J A Veira, J Maza, F Vidal   +6 more
openaire   +2 more sources

Electrical resistivity, hall coefficient, and thermopower of optimally doped high-T c superconductors

JETP Letters, 2015
© 2014, Pleiades Publishing, Inc. For a two-dimensional optimally doped antiferromagnet with spin S =1/2, we study the temperature dependence of the electrical resistivity ρ(T), Hall coefficient RH(T), and thermopower Q(T). The temperature dependence corresponding to optimally doped layered high-Tc superconducting cuprates has been obtained ...
Larionov I., Barabanov A.
openaire   +4 more sources

Seebeck Coefficient (Thermopower)

, 2007
Based on the idea that different temperatures generate different carrier densities and the resulting carrier diffusion causes the thermal electromotive force (emf), a new formula for the Seebeck coefficient (thermopower) S is obtained: \(S = (2\ln{2} /3)(qn)^{-1}\epsilon_{F}k_{B}({\cal N}_{0}/V)\), where q, n, \(\epsilon_{F}\), \({\cal N}_{0}\), and V ...
Shigeji Fujita, Kei Ito
openaire   +2 more sources

High-throughput characterization of the Seebeck coefficient of a-(Cr_{1 −x}Si_x)_{1 −y}O_ythin film materials libraries as verification of the extended thermopower formula

Journal of Physics: Condensed Matter, 2011
In a previous paper (Sonntag 2010 J. Phys.: Condens. Matter 22 235501) the classical thermopower formula has been argued to be incomplete, because it only takes into account the scattering properties of the carriers, but not the temperature dependence of the electrochemical potential μ caused by variation of the carrier density and/or band edge shift ...
Sonntag, J., Ziolkowski, P., Savan , A., Kieschnick, M., Ludwig, A.   +4 more
openaire   +3 more sources

The Temperature, Pressure, and Concentration Coefficients of Resistivity of Metals and Their Relation to the Diffusion Thermopower

physica status solidi (b), 1971
AbstractThe resistivity of metals has been considered in the light of modifications to the Fermi energy, Debye temperature, and band structure brought about by changes of pressure, temperature and impurity concentration. The changes of Fermi energy have been formulated in terms of the diffusion thermopower provided the electron scattering is quasi ...
Robert Barnard
openaire   +2 more sources

Thermopower and Nernst coefficient in the Y_0.85Ca_0.15Ba_2−xLa_xCu₃O_ysystem: experimental results and joint quantitative analysis

Superconductor Science and Technology, 2017
V E Gasumyants, O A Martynova
openaire   +2 more sources

ChemInform Abstract: Electrical Conductivity, Thermopower, Hall Coefficient, and Magnetoresistance of Titanium Oxides with Varying Oxygen Content.

Chemischer Informationsdienst, 1986
H. GRUBER, E. KRAUTZ
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Electrical Conductivity, Thermopower, Hall Coefficient and Magnetoresistance of Titanium Oxides with Different Oxygen Content

International Journal of Materials Research, 1986
Hartmut Gruber, Erich Krautz
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Origin of large thermopower inLiRh2O4: Calculation of the Seebeck coefficient by the combination of local density approximation and dynamical mean-field theory

Physical Review B, 2008
R. Arita, K. Kuroki, K. Held, A. V. Lukoyanov, S. Skornyakov, V. I. Anisimov   +5 more
openaire   +2 more sources