Results 61 to 70 of about 15,243 (240)

Study of the Thermoelectric Properties of Chrome Silicides

East European Journal of Physics
The temperature dependences of the thermoelectromotive force of chromium mono and disilicides in the temperature range 200℃÷+600℃ have been studied. For chromium disilicide, the dependence of the thermopower coefficient (α) on temperature (T) has three ...
Abdugafur T. Mamadalimov, Makhmudkhodja Sh. Isaev, Ismoil T. Bozarov, Alisher E. Rajabov, Sojida K. Vakhabova   +4 more
doaj   +1 more source

Improved High Temperature Thermoelectric Properties in Misfit Ca₃Co₄O₉ by Thermal Annealing

Energies, 2023
Ca3Co4O9, a p-type thermoelectric material based on transition-metal oxides, has garnered significant interest due to its potential in thermoelectric applications.
Arindom Chatterjee, Alexandros El Sachat, Ananya Banik, Kanishka Biswas, Alejandro Castro-Alvarez, Clivia M. Sotomayor Torres, José Santiso, Emigdio Chávez-Ángel   +7 more
doaj   +1 more source

First‐Principles Investigation of the Electronic, Phonon, Optical, and Elastic Properties of AgBiTeSe

Advanced Physics Research, EarlyView.
This study presents a first‐principles investigation of the electronic, vibrational, optical, and elastic properties of AgBiTeSe. The results highlight its metallic behavior, dynamic stability, strong optical absorption, and promising thermoelectric potential.
Nilufer Yesmin Tanisa, Munshi H. M. Rahat, Sayed Bony Amin, Md. Karimul Islam   +3 more
wiley   +1 more source

Vacancy defect control of colossal thermopower in FeSb2

npj Quantum Materials, 2021
Iron diantimonide is a material with the highest known thermoelectric power. By combining scanning transmission electron microscopic study with electronic transport neutron, X-ray scattering, and first principle calculation, we identify atomic defects ...
Qianheng Du, Lijun Wu, Huibo Cao, Chang-Jong Kang, Christie Nelson, Gheorghe Lucian Pascut, Tiglet Besara, Theo Siegrist, Kristjan Haule, Gabriel Kotliar, Igor Zaliznyak, Yimei Zhu, Cedomir Petrovic   +12 more
doaj   +1 more source

Cryogenic thermocouple calibration tables [PDF]

, 1970
Thermocouple calibration standards are developed for low-temperature thermocouple materials.
Hall, W. J., Powell, R. L., Sparks, L. L.   +2 more
core   +1 more source

Effect of the Kondo correlation on thermopower in a Quantum Dot

, 2002
In this paper we study the thermopower of a quantum dot connected to two leads in the presence of Kondo correlation by employing a modified second-order perturbation scheme at nonequilibrium. A simple scheme, Ng's ansatz [Phys. Rev. Lett.
Aono T, Bing Dong, Boese D, Dong B, Dzurak A S, Horvatic B, Lacroix C, Langreth D C, Mahan G D, X L Lei, Yosida K   +10 more
core   +1 more source

Symmetry Control of Mutually Thermoelectric Conversion in Rutile RuO2

Advanced Physics Research, EarlyView.
We demonstrate that crystal symmetry can efficiently modulate mutual thermoelectric conversion. Longitudinal electric‐to‐heat conversion via the anisotropic crystal Peltier effect is observed in a RuO2 single layer without forming P–N junctions, and its dependence on crystal orientation is revealed by lock‐in thermography. Reciprocally, the anisotropic
Hua Bai, Jiankun Dai, Yulong Chen, Jiachen Zhang, Lei Han, Yichi Zhang, Wenxuan Zhu, Feng Pan, Dazhi Hou, Cheng Song   +9 more
wiley   +1 more source

Apparent critical phenomena in the superionic phase transition of Cu2-xSe

New Journal of Physics, 2016
The superionic phase transition of ${\mathrm{Cu}}_{2-x}\mathrm{Se}$ accompanies drastic changes in transport properties. The Seebeck coefficient increases sharply while the electrical conductivity and thermal diffusivity drops.
Stephen Dongmin Kang, Sergey A Danilkin, Umut Aydemir, Maxim Avdeev, Andrew Studer, G Jeffrey Snyder   +5 more
doaj   +1 more source

The Thermopower of Quantum Chaos

, 1998
The thermovoltage of a chaotic quantum dot is measured using a current heating technique. The fluctuations in the thermopower as a function of magnetic field and dot shape display a non-Gaussian distribution, in agreement with simulations using Random ...
A. A. M. Staring, A. G. Huibers, C. M. Marcus, C. W. J. Beenakker, H. Buhmann, H. U. Baranger, H. U. Baranger, H. U. Baranger, I. H. Chan, J. J. M. Verbaarschot, K. B. Efetov, L. W. Molenkamp, L. W. Molenkamp, L. W. Molenkamp, M. J. Kearney, P. W. Brouwer, P. W. Brouwer, P. W. Brouwer, S. A. van Langen, S. A. van Langen, S. F. Godijn, S. Möller, S. Möller, Y. V. Fyodorov, Y. V. Fyodorov, Z. Pluhar   +25 more
core   +1 more source

Isoelectronic Alloying in Zintl Phases Mediated the Avoided Crossing and Phonon Softening

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A small amount of Hf doping endows Zr3Ni3Sb4‐Zintl with an unusually low thermal conductivity far exceeding that of similar systems. Two unique phonon mechanisms—avoided crossing and phonon softening—significantly suppress the lattice thermal conductivity. The average thermoelectric figure of merit is improved by 21%.
Zesong Wang, Xiang Wei, Ran Guo, Shun Han, Weihong Gao, Yu‐dong Fu, Zihang Liu   +6 more
wiley   +1 more source