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We present the thermoelectric (TE) properties of LaCoO$_{3}$ compound in the temperature range 300-600 K. The experimental value of Seebeck coefficient ($\alpha$) at 300 K is found to be $\sim$635 $\mu$V/K. The value of $\alpha$ decreases…

强关联电子 · 物理学 2017-04-25 Saurabh Singh , Sudhir K. Pandey

We explore the possibility to perform an in-situ transmission electron microscopy (TEM) thermoelectric characterization of materials. A differential heating element on a custom in-situ TEM microchip allows to generate a temperature gradient…

材料科学 · 物理学 2025-01-14 Simon Hettler , Mohammad Furqan , Andres Sotelo , Raul Arenal

Accurate measurement of efficiency for thermoelectric generator (TEG) is of great importance for materials research and development. Approximately all the parameters of a material are temperature dependent, so we can't directly apply the…

材料科学 · 物理学 2016-06-08 Kumar Gaurav , Sudhir K Pandey

Heusler-type Fe2VAl compound is a promising thermoelectric candidate with non-magnetic ground state. The present work investigates the Seebeck coefficient (S) of Fe2VAl in the temperature region 300 to 620 K with the help of experimental…

材料科学 · 物理学 2018-09-20 Shamim Sk , P. Devi , Sanjay Singh , Sudhir K Pandey

Normally, understanding the temperature dependent transport properties of strongly correlated electron systems remains challenging task due to complex electronic structure and its variations (around E$_{F}$) with temperature. Here, we…

强关联电子 · 物理学 2017-03-21 Saurabh Singh , Devendra Kumar , Sudhir K. Pandey

Investigation of Seebeck coefficient in ultra-wide bandgap materials presents a challenge in measurement, nevertheless, it is essential for understanding fundamental transport mechanisms involved in electrical and thermal conduction.…

材料科学 · 物理学 2021-02-24 Ashish Kumar , Saurabh Singh , Bhera Ram Tak , Ashutosh Patel , K. Asokan , D. Kanjilal

The Seebeck coefficient is examined for two-dimensional Dirac electrons in the three-quarter filled organic conductor alpha-(BEDT-TTF)_2I_3 under hydrostatic pressure, where the Seebeck coefficient is proportional to the ratio of the…

介观与纳米尺度物理 · 物理学 2024-04-10 Yoshikazu Suzumura , Takao Tsumuraya , Masao Ogata

We present a measurement and analysis scheme for determining traceable thermodynamic temperature at cryogenic temperatures using Coulomb blockade thermometry. The uncertainty of the electrical measurement is improved by utilizing two…

We performed temperature-dependent optical pump - THz emission measurements in Y3Fe5O12 (YIG)|Pt from 5 K to room temperature in the presence of an externally applied magnetic field. We study the temperature dependence of the spin Seebeck…

Active thermal control is crucial in achieving the required accuracy and throughput in many industrial applications, e.g., in the medical industry, high-power lighting industry, and semiconductor industry. Thermoelectric Modules (TEMs) can…

系统与控制 · 电气工程与系统科学 2020-06-19 Enzo Evers , Rens Slenders , Rob van Gils , Tom Oomen

Transition metal oxides have been attracted much attention in thermoelectric community from the last few decades. In the present work, we have synthesized LaNiO$_{3}$ by a simple solution combustion process. To analyze the crystal structure…

材料科学 · 物理学 2022-02-02 Arzena Khatun , Shamim Sk , Sudhir K. Pandey

Using the Cryogenic, High-Accuracy Refraction Measuring System (CHARMS) at NASA's Goddard Space Flight Center, we have measured the absolute refractive index of five specimens taken from a very large boule of Corning 7980 fused silica from…

光学 · 物理学 2008-05-02 Douglas B. Leviton , Bradley J. Frey

In the ongoing search for innovative thermoelectric (TE) materials with superior TE performance globally, we aim to investigate the possible use of half-Heusler alloy CoHfSi in TE applications. We analyzed the structure stability,…

材料科学 · 物理学 2025-06-27 Sadhana Matth , S. Pandey , Himanshu Pandey

A three-level system attached to three thermal baths is manipulated to be a microscopic thermal device integrating a valve, a refrigerator, an amplifier, and a thermometer in the quantum regime, via tuning the inner coupling strength of the…

量子物理 · 物理学 2021-01-27 Yong Huangfu , Shifan Qi , Jun Jing

In this article, we present a cost-effective approach to the precision measurement of heat flux using commercial thermoelectric modules (TEMs). Two different methods of measuring heat flux with TEMs are investigated, namely passive mode…

仪器与探测器 · 物理学 2022-11-23 Jacob Crossley , A. N. M. Taufiq Elahi , Mohammad Ghashami , Keunhan Park

Thermal equilibrium states are exponentially hard to distinguish at very low temperatures, making equilibrium quantum thermometry in this regime a formidable task. We present a thermometric scheme that circumvents this limitation, by using…

量子物理 · 物理学 2021-10-07 Ivan Henao , Karen V. Hovhannisyan , Raam Uzdin

We study the dynamical thermoelectric transport in metals subjected to the electron-impurity and the electron-phonon interactions using the memory function formalism. We introduce a generalized Drude form for the Seebeck coefficient in…

强关联电子 · 物理学 2017-05-23 Pankaj Bhalla , Pradeep Kumar , Nabyendu Das , Navinder Singh

Predicting thermal response in orthopaedic surgery or dental implantation remains a significant challenge. This study aims to find a practical approach for measuring temperature elevation during a bone drilling experiment by analyzing the…

We describe a simple and accurate differential thermal analysis set up to measure the latent heat of solid state materials undergoing abrupt phase transitions in the temperature range from 77 K to above room temperature. We report a…

统计力学 · 物理学 2021-10-12 Tapas Bar , Bhavtosh Bansal

The Seebeck coefficient, which is proportional to a ratio of the thermoelectric conductivity to electrical conductivity has been examined for Dirac electrons in the organic conductor $\alpha$-(BEDT-TTF)$_2$I$_3$ [BEDT-TTF denotes a molecule…

材料科学 · 物理学 2023-05-11 Yoshikazu Suzumura , Masao Ogata