Results 91 to 100 of about 112,352 (224)

Spin mixing conductance enhancement by increasing magnetic density

open access: yesAIP Advances, 2017
We obtained the spin Seebeck effect enhancement in Y3Fe5O12 (YIG)/Pt system by inserting a very thin Ni80Fe20 at the interface of YIG/Pt. One of important parameters determining the spin Seebeck coefficient is the spin mixing conductance at the interface
Hiromi Yuasa   +2 more
doaj   +1 more source

Preparation and Thermoelectric Properties of Graphite/poly(3,4-ethyenedioxythiophene) Nanocomposites

open access: yesEnergies, 2018
Graphite/poly(3,4-ethyenedioxythiophene) (PEDOT) nanocomposites were prepared by an in-situ oxidative polymerization process. The electrical conductivity and Seebeck coefficient of the graphite/PEDOT nanocomposites with different content of graphite were
Yong Du   +5 more
doaj   +1 more source

Doping effect on the thermoelectric transport properties of HfTe5

open access: yesAIP Advances, 2019
We studied the influence of doping HfTe5 with 5% Ti on electric (resistivity and the Hall effect) and thermoelectric transport properties (the Seebeck coefficient, magneto-thermoelectric power, and Nernst effect).
Junfeng Hu   +2 more
doaj   +1 more source

Origin of coexisting large Seebeck coefficient and metallic conductivity in the electron doped SrTiO$_3$ and KTaO$_3$ [PDF]

open access: yes, 2010
We study the origin of the large Seebeck coefficient despite the metallic conductivity in the La-doped SrTiO$_3$ and Ba-doped KTaO$_3$. We calculate the band structure of SrTiO$_3$ and KTaO$_3$, from which the Seebeck coefficient is obtained using the Boltzmann's equation.
arxiv   +1 more source

Seebeck coefficient in organic semiconductors

open access: yes, 2014
When a temperature differential is applied across a semiconductor, a thermal voltage develops across it in response. The ratio of this thermal voltage to the applied temperature differential is the Seebeck coefficient, a transport coefficient that complements measurements of electrical and thermal conductivity.
openaire   +2 more sources

Enhanced thermoelectric properties of Ce–doped Bi2Sr2Co2Oy misfit–layer oxides

open access: yesJournal of Materials Research and Technology, 2022
To improve the thermoelectric properties of Ce–doped Bi2Sr2Co2Oy, the structural and thermoelectric properties of Bi2–xCexSr2Co2Oy (0 ≤ x ≤ 0.15) prepared by both conventional sintering (CS) and spark plasma sintering (SPS) are investigated.
H.Y. Hong, S.Y. Gwon, S.O. Won, K. Park
doaj  

The Seebeck coefficient and phonon drag in silicon

open access: yesJournal of Applied Physics, 2014
We present a theory of the phonon-drag Seebeck coefficient in nondegenerate semiconductors, and apply it to silicon for temperatures 30 < T < 300 K. Our calculation uses only parameters from the literature, and previous calculations of the phonon lifetime. We find excellent agreement with the measurements of Geballe and Hull [Phys.
Gerald D. Mahan   +2 more
openaire   +3 more sources

Thermoelectric properties of sorted semiconducting single-walled carbon nanotube sheets

open access: yesScience and Technology of Advanced Materials, 2019
Single-walled carbon nanotubes (SWNTs), especially their semiconducting type, are promising thermoelectric (TE) materials due to their high Seebeck coefficient. In this study, the in-plane Seebeck coefficient (S), electrical conductivity (σ), and thermal
Wenxin Huang   +3 more
doaj   +1 more source

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