Results 191 to 200 of about 1,081,271 (246)

A Nanoscale Standard for the Seebeck Coefficient

open access: yesNano Letters, 2011
The Seebeck coefficient, a key parameter describing a material's thermoelectric performance, is generally difficult to measure, and no intrinsic calibration standard exists. Quantum dots and single electron tunneling devices with sharp transmission resonances spaced by many kT have a material-independent Seebeck coefficient that depends only on the ...
Heiner Linke
exaly   +4 more sources

Anomalous Seebeck Coefficient in Boron Carbides

open access: yesMRS Proceedings, 1987
ABSTRACTBoron carbides exhibit an anomalously large Seebeck coefficient with a temperature coefficient that is characteristic of polaronic hopping between inequivalent sites. The inequivalence in the sites is associated with disorder in the solid. The temperature dependence of the Seebeck coefficient for materials prepared by different techniques ...
T. L Aselage   +4 more
openaire   +2 more sources

Spin seebeck coefficient of a molecular spin pump

open access: yesPhysical Chemistry Chemical Physics, 2011
Within a generalized version of previously considered model of a molecular spin pump controlled by an external electric field [J. Fransson and M. Galperin, Phys. Rev. B, 2010, 81, 075311] we discuss thermal properties of such spintronic devices. The spin Seebeck coefficient of a molecular spin pump is introduced, and several possible definitions of a ...
Jonas, Fransson, Michael, Galperin
openaire   +3 more sources

Accurate measurement of Seebeck coefficient

Review of Scientific Instruments, 2016
In this work, it was investigated how to measure Seebeck coefficient accurately. The offset voltages, between the specimen and measurement wires, might influence the results measured significantly and should be eliminated during measuring process. They do not depend on temperature difference but on temperature and include two parts: the intrinsic ...
Jian Liu   +8 more
openaire   +2 more sources

Seebeck coefficient of K2SO4

Materials Research Bulletin, 1983
Abstract The thermopotential of the cell (SO 2 +O 2 ), Pt/K 2 SO 4 /Pt, (SO 2 +O 2 )′ was measured, and a Seebeck coefficient of 1.6 mV/°C was obtained. This value is higher than that of most salts that have been measured to date. The high Seebeck coefficient has implications in the use of the cell in SO 2 gas measurements.
C.Y. Lin, C. Hirayama
openaire   +1 more source

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   +1 more source

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