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A Seebeck coefficient measurement apparatus has been designed and developed, which is very effective for accurate characterization of different type of samples in a wide temperature range (80 - 650K) simultaneously covering low as well as…

Applied Physics · Physics 2019-10-23 Ashish Kumar , Ashutosh Patel , Saurabh Singh , K. Asokan , D. Kanjilal

An in-house Seebeck coefficient measurement system has been developed which can measure the thermoemf (Seebeck coefficient) of the sample, under large temperature difference, in the temperature range 300-600 K. Unlike majority of reported…

Instrumentation and Detectors · Physics 2019-08-16 Soumya Biswas , Aditya S Dutt , Nirmal Sabastian , Vinayak B Kamble

In this work, we report the fabrication of fully automated experimental setup for high temperature Seebeck coefficient ({\alpha}) measurement. The K-type thermocouples are used to measure the average temperature of the sample and Seebeck…

Instrumentation and Detectors · Physics 2017-04-28 Ashutosh Patel , Sudhir K. Pandey

Fabrication and characterization of instrument for high-temperature simultaneous measurement of Seebeck coefficient (S) and thermal conductivity ($\kappa$) has been carried out with python automation. The steady-state based Fourier's law of…

Materials Science · Physics 2022-04-20 Shamim Sk , Abhishek Pandey , Sudhir K. Pandey

The spin Seebeck effect (SSE) has generated interest in the thermoelectric and magnetic communities for potential high efficiency energy harvesting applications, and spintronic communities as a source of pure spin current. To understand the…

Mesoscale and Nanoscale Physics · Physics 2020-07-28 G. Venkat , C. D. W. Cox , A. Sola , V. Basso , K. Morrison

A simple apparatus for the measurement of Seebeck coefficient ($\alpha$) in the temperature range 300-620 K has been fabricated. Our design is appropriate for the characterization of samples with different geometries like disk and rod…

Instrumentation and Detectors · Physics 2017-04-25 Saurabh Singh , Sudhir K. Pandey

Seebeck coefficient is a widely-studied semiconductor property. Conventional Seebeck coefficient measurements are based on DC voltage measurement. Normally this is performed on samples with low resistances below a few Mohm level. Meanwhile,…

Applied Physics · Physics 2020-01-27 Zhenyu Pan , Zheng Zhu , Jonathon Wilcox , Jeffrey J. Urban , Fan Yang , Heng Wang

In this work, we report the fabrication of a high temperature measurement setup to measure Figure of merit (ZT). This setup facilitates the simultaneous measurement of Seebeck coefficient ({\alpha}), thermal conductivity (\kappa), and…

Instrumentation and Detectors · Physics 2018-01-09 Ashutosh Patel , 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…

Materials Science · Physics 2018-09-20 Shamim Sk , P. Devi , Sanjay Singh , Sudhir K Pandey

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 temperature dependence of the Seebeck coefficient of homoepitaxial metal organic vapor phase (MOVPE) grown, silicon doped $\beta$-Ga$_2$O$_3$ thin films was measured relative to aluminum. For room temperature we found the relative…

An experimental setup was developed for the measurement of the thermoelectric power (TEP, Seebeck coefficient) in the temperature range from 2 to 350 K and magnetic fields up to 140 kOe. The system was built to fit in a commercial cryostat…

Instrumentation and Detectors · Physics 2015-05-18 Eundeok Mun , Sergey L. Bud'ko , Milton S. Torikachvili , Paul C. Canfield

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…

Materials Science · Physics 2019-09-11 Maxime Markov , Emad Rezaei , Safoura Nayeb Sadeghi , Keivan Esfarjani , Mona Zebarjadi

At the ultra-thin film limit, quantum confinement strongly improves thermoelectric figure of merit in materials such as Sb$_2$Te$_3$ and Bi$_2$Te$_3$. These high quality films have only been realized using well controlled techniques such as…

At the ultra-thin limit below 20 nm, a film's electrical conductivity, thermal conductivity, or thermoelectricity depends heavily on its thickness. In most studies, each sample is fabricated one at a time, potentially leading to…

Mesoscale and Nanoscale Physics · Physics 2023-06-22 Kien Trung Nguyen , Giang Bui-Thanh , Hong Thi Pham , Thuat Nguyen-Tran , Chi Hieu Hoang , Hung Q. Nguyen

The application of a temperature gradient to an extended system generates an electromotive force that induces an electric current in conductors and a macroscopic polarization in insulators. The ratio of the electromotive force to the…

Materials Science · Physics 2024-02-01 Enrico Drigo , Stefano Baroni

Whilst there have been several reports of the spin Seebeck effect to date, comparison of the absolute voltage(s) measured, in particular for thin films, is limited. In this letter we demonstrate normalization of the spin Seebeck effect for…

Mesoscale and Nanoscale Physics · Physics 2018-07-24 K. Morrison , A. J Caruana , C. Cox

The Seebeck coefficient of a metal is expected to display a linear temperature-dependence in the zero-temperature limit. To attain this regime, it is often necessary to cool the system well below 1K. We put under scrutiny the magnitude of…

Strongly Correlated Electrons · Physics 2007-05-23 Kamran Behnia , Didier Jaccard , Jacques Flouquet

We present the design and construction of an apparatus that measures the Seebeck coefficient of single crystals under in-situ tunable strain at cryogenic temperatures. A home-built three piezostack apparatus applies uni-axial stress to a…

Strongly Correlated Electrons · Physics 2021-03-26 Tiema Qian , Joshua Mutch , Lihua Wu , Preston Went , Jihui Yang , Jiun-Haw Chu

Thermoelectric effects, measured by the Seebeck coefficients, refer to the phenomena in which a temperature difference or gradient imposed across a thermoelectric material induces an electrical potential difference or gradient, and vice…

Materials Science · Physics 2018-12-05 Yi Wang , Yong-Jie Hu , Shun-Li Shang , Bi-Cheng Zhou , Zi-Kui Liu , Long-Qing Chen
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