Results 41 to 50 of about 112,352 (224)
Effect of Coulomb Interaction on Seebeck Coefficient of Organic Dirac Electron System $α$-(BEDT-TTF)$_2$I$_3$ [PDF]
Phys. Rev. B 101, 245201 (2020), 2020 Motivated by the results of recent thermoelectric effect studies, we show the effects of Coulomb interactions on the Seebeck coefficient based on an extended Hubbard model that describes the electronic states of a slightly doped organic Dirac electron system, $\alpha$-(BEDT-TTF)$_2$I$_3$.
arxiv +1 more source
Understanding the effect of thickness on the thermoelectric properties of Ca3Co4O9 thin films
Scientific Reports, 2021 We are reporting the effect of thickness on the Seebeck coefficient, electrical conductivity and power factor of Ca3Co4O9 thin films grown on single-crystal Sapphire (0001) substrate.
Yinong Yin, Ashutosh Tiwari
doaj +1 more source
Seebeck Coefficient of Kondo Insulators [PDF]
Journal of the Physical Society of Japan, 2002 Seebeck coefficient S of the Kondo insulators is investigated theoretically within the framework of the dynamical mean field theory. It is found that the temperature dependence changes from the ordinary behavior S ( T ) ∝ T -1 in semiconductors to approximately S ∝ T at low temperatures due to the finite imaginary part of the electron self-energy in ...
Tetsuro Saso, Kentaro Urasaki
openaire +2 more sources
Thermoelectric properties of semimetals [PDF]
Phys. Rev. Materials 3, 095401 (2019), 2019 Heavily doped semiconductors are by far the most studied class of materials for thermoelectric applications in the past several decades. They have Seebeck coefficient values which are 2-3 orders of magnitude higher than metals, making them attractive for thermoelectric applications.
arxiv +1 more source
Significant Phonon Drag Enables High Power Factor in the AlGaN/GaN Two-Dimensional Electron Gas [PDF]
, 2019 In typical thermoelectric energy harvesters and sensors, the Seebeck effect is caused by diffusion of electrons or holes in a temperature gradient. However, the Seebeck effect can also have a phonon drag component, due to momentum exchange between charge
Boone, Derrick +8 more
core +4 more sources
Seebeck coefficient of heavy fermion compounds
Journal of Magnetism and Magnetic Materials, 1987 The thermoelectric power (TEP) of the magnetically ordered Kondo lattices CeCu2Ge2, CeCu4Al8 and CePb3 was measured up to 350 K and compared with that of heavy-fermion UBe13. New low-T TEP-anomalies, presumably coherence-derived, are found to show up in CePb3 and UBe13, but to be absent in U0.97Th0.03Be13.
Institut für Festkörperphysik, Technishce Darmstadt, D-6100 Darmstadt, Fed. Rep. Germany ( host institution ) +9 more
openaire +3 more sources
Seebeck coefficients of half-metallic ferromagnets [PDF]
Solid State Communications, 2010 In this report the Co2 based Heusler compounds are discussed as potential materials for spin voltage generation. The compounds were synthesized by arcmelting and consequent annealing. Band structure calculations were performed and revealed the compounds to be half-metallic ferromagnets.
Siham Ouardi +8 more
openaire +3 more sources
Seebeck coefficient in silicon nanowire arrays [PDF]
Applied Physics Letters, 2013 We measure the Seebeck coefficient S in large arrays of lightly doped n-Si nanowires (SiNWs). Our samples consist of ∼107 NWs in parallel, forming a “bulk” nano-structured material. We find that the phonon drag component of S, a manifestation of electron-phonon scattering in the sample, is heavily suppressed due to surface scattering, and that there is
Krali, E, Durrani, ZAK
openaire +4 more sources
Chemical Engineering Transactions, 2015 N-type thermoelectric bismuth telluride (Bi2Te3) was deposited on virgin carbon fibre (VCF) and recycled carbon fibre (RCF) substrates by electro-deposition.
P.R. Jagadish +3 more
doaj +1 more source
Interplay of Peltier and Seebeck effects in nanoscale nonlocal spin valves [PDF]
, 2010 We have experimentally studied the role of thermoelectric effects in nanoscale nonlocal spin valve devices. A finite element thermoelectric model is developed to calculate the generated Seebeck voltages due to Peltier and Joule heating in the devices. By
A. Slachter +6 more
core +4 more sources