Nernst and Ettingshausen Effects in Germanium between 300 and 750°K

Mette, Herbert; Loscoe, Claire

doi:10.1103/physrev.115.537

Cited by 27 publications

(7 citation statements)

References 10 publications

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“…The outcomes show that the EC decreases sharply in the range 200 230 KK  and the same in the range 230 K  . This result is the same with the empirical results for the EC in p -type germanium with resistivities 30 ohm cm  studied in [10]. Comparing to EC in the quantum well [11], the EC in CSSL is larger than that in the quantum well.…”

Section: Numerical Results and Discussionsupporting

confidence: 88%

Magneto – thermoelectric Effects in Compositional Superlattice in the Presence of Electromagnetic Wave

Hang

Hòa²,

Nhàn³

et al. 2019

MaP

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Ettingshausen coefficient (EC) in the compositional semiconductor superlattice under the influence of electromagnetic wave (EMW) is surveyed by using the quantum kinetic equation for electrons. The analytical expressions of the Ettingshausen coefficient are numerically calculated for the GaAs/AlGaAs compositional semiconductor superlattice. It have been showed that the appearance of EMW has changed the EC’s value and the EC decreases nonlinearly when the temperature increases. Studying the dependence of EC on the magnetic field, we discovered that the resonance peaks have appeared and the superlattice period strongly affects the Ettingshausen coefficient.

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Section: Numerical Results and Discussionsupporting

confidence: 88%

Magneto – thermoelectric Effects in Compositional Superlattice in the Presence of Electromagnetic Wave

Hang

Hòa²,

Nhàn³

et al. 2019

MaP

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“…Although ONE in semiconductors and semimetals exhibit a substantially large transverse thermopower, it has not been applied in practice because its operation requires large magnetic fields. [5][6][7][8] In contrast, in magnetic materials with spontaneous magnetization, the Nernst effect appears even in the absence of magnetic fields owing to the spin-orbit interaction, which is called the anomalous Nernst effect (ANE) [Fig. 1(c)].…”

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confidence: 99%

Transverse thermoelectric generation using magnetic materials

Uchida

Zhou

Sakuraba

2021

Applied Physics Letters

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The transverse thermoelectric effect refers to the conversion of a temperature gradient into a transverse charge current, or vice versa, which appears in a conductor under a magnetic field or in a magnetic material with spontaneous magnetization. Among such phenomena, the anomalous Nernst effect in magnetic materials has been receiving increased attention from the viewpoints of fundamental physics and thermoelectric applications owing to the rapid development of spin caloritronics and topological materials science. In this research trend, a conceptually different transverse thermoelectric conversion phenomenon appearing in thermoelectric/magnetic hybrid materials has been demonstrated, enabling the generation of a large transverse thermopower. Here, we review the recent progress in fundamental and applied studies on the transverse thermoelectric generation using magnetic materials.

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“…Its origin is the extraordinarily high mobility of electrons and low Fermi energy (Behnia, 2009). In addition, a large Nernst coefficient has also been reported using other high-carrier mobility materials such as InSb (À82 mV K À1 T À1 at 283 K) (Nakamura et al, 1997), Ge (320 mV K À1 T À1 at 360 K) (Mette et al, 1959), and Cd 3 As 2 (107 mV K À1 T À1 at 250 K) (Xiang et al, 2020). However, a thermoelectric module using these materials operating with the Nernst effect has not been reported.…”

Section: Introductionmentioning

confidence: 88%