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Thermal properties have an outsized impact on efficiency and sensitivity of devices with nanoscale structures, such as in integrated electronic circuits. A number of thermal conductivity measurements for semiconductor nanostructures exist,…

Laser irradiation of materials is most commonly modeled with the two-temperature model (TTM), or its combination with molecular dynamics, TTM-MD. For such modeling, the electronic transport coefficients are required. Here, we calculate the…

Materials Science · Physics 2024-05-14 Nikita Medvedev , Fedor Akhmetov , Igor Milov

In situ thermal transport measurement of flowing fluid could be useful for the characterization and diagnosis of practical thermal systems such as fluid heat exchangers and thermal energy storage systems. Despite abundant reports on the…

Fluid Dynamics · Physics 2021-05-04 Jian Zeng , Ka Man Chung , Sarath Reddy Adapa , Tianshi Feng , Renkun Chen

In this paper, we show that a hybrid method using coupled boundary measurements can determine electrical conductivity, thermal conductivity, and the product of heat capacity and heat density within a bounded domain on the plane uniquely up…

Analysis of PDEs · Mathematics 2017-02-01 Yifan Chang

We present measurements of the low temperature thermal conductivity for materials useful in the construction of cryogenic supports for scientific instrumentation and in the fabrication of flat flexible cryogenic cabling. The materials we…

Instrumentation and Detectors · Physics 2019-01-11 M. Daal , N. Zobrist , N. Kellaris , B. Sadoulet , M. Robertson

We present a one-heater-two-thermometer set-up for measuring thermal conductivity and electric resistivity of a bulk sample at low temperatures down to 0.1 K and in magnetic fields up to 27 Tesla. The design overcomes the difficulties…

Superconductivity · Physics 2009-11-10 P. J. E. M. van der Linden , K. Behnia

The hyperkagome antiferromagnet Na$_{4}$Ir$_3$O$_8$ represents the first genuine candidate for the realisation of a three-dimensional quantum spin-liquid. It can also be doped towards a metallic state, thus offering a rare opportunity to…

Strongly Correlated Electrons · Physics 2015-06-23 B. Fauqué , Xiaofeng Xu , A. F. Bangura , E. C. Hunter , A. Yamamoto , K. Behnia , A. Carrington , H. Takagi , N. E. Hussey , R. S. Perry

This paper presents a study of the thermal transport properties of MgB$_2$ tapes differing in architecture, stabilization and constituent materials. The temperature and field dependence of thermal conductivity, $\kappa(T,B)$, was…

Superconductivity · Physics 2015-10-28 Marco Bonura , Carmine Senatore

Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform…

As power electronics shrinks down to sub-micron scale, the thermal transport from a solid surface to environment becomes significant. Under circumstances when the device works in rare gas environment, the scale for thermal transport is…

Applied Physics · Physics 2018-05-23 Jianshu Gao , Yanan Yue , Danmei Xie , Yangheng Xiong

Thermodynamics and transport properties of a dissipative particle in a tight-binding model are studied through specific heat and optical conductivity. A weak coupling theory is constituted to study the crossover behavior between the…

Statistical Mechanics · Physics 2009-10-30 Takeo Kato , Masatoshi Imada

We present a non-invasive technique for measuring the thermal conductivity of fragile and sensitive materials. In the context of planet formation research, the investigation of the thermal conductivity of porous dust aggregates provide…

Earth and Planetary Astrophysics · Physics 2015-03-17 Maya Krause , Jürgen Blum , Yuri V. Skorov , Mario Trieloff

We report on the first measurement of the thermal conductivity of a suspended single layer graphene. The measurements were performed using a non-contact optical technique. The near room-temperature values of the thermal conductivity in the…

Materials Science · Physics 2008-03-15 A. A. Balandin , S. Ghosh , W. Bao , I. Calizo , D. Teweldebrhan , F. Miao , C. N. Lau

Recent developments of the AC-calorimetric technique adapted for the needs of high pressure experiments are discussed. A semi-quantitative measurement of the specific heat with a Bridgman-type of pressure cell as well as a diamond anvil…

Strongly Correlated Electrons · Physics 2015-06-24 Heribert Wilhelm

To develop next-generation electronics and high efficiency energy-harvesting devices, it is crucial to understand how charge and heat are transported at the nanoscale. Metallic atomic-size contacts are ideal systems to probe the quantum…

Mesoscale and Nanoscale Physics · Physics 2019-05-01 Nico Mosso , Alyssa Prasmusinto , Andrea Gemma , Ute Drechsler , Lukas Novotny , Bernd Gotsmann

Combining equilibrium and non-equilibrium molecular dynamics simulations with accurate carbon potentials, we determine the thermal conductivity $\lambda$ of carbon nanotubes and its dependence on temperature. Our results suggest an…

Materials Science · Physics 2009-10-31 Savas Berber , Young-Kyun Kwon , David Tomanek

A systematic study was performed to measure the effective thermal conductivity of ceramic particle beds, a promising heat transfer and thermal energy storage media for concentrating solar power (CSP). The thermal conductivity of the ceramic…

An instrument has been constructed to measure a large range of magnetostriction and thermal expansion between room temperature and 4 K in a superconductive split-coil magnet, that allows investigation in magnetic fields up to 12 T. The very…

Materials Science · Physics 2015-05-14 B. Kundys , Yu. Bukhantsev , S. Vasiliev , D. Kundys , M. Berkowski , V. P. Dyakonov

Nanoscale engineering and novel materials have created interesting effects in thermal transport. Thermal conductivity can now be different due to physical and heating sizes. Also, highly anisotropic thermal conductivity can result from…

Materials Science · Physics 2019-03-08 Ding Ding , Kedar Hippalgaonkar

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