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相关论文: Modulated-bath AC calorimetry using modified comme…

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We describe an AC method for the measurement of the longitudinal (Sxx) and transverse (Sxy, i.e. Nernst) thermopower of mm-size single crystal samples at low temperatures (T<1 K) and high magnetic fields (B>30 T). A low-frequency (33 mHz)…

仪器与探测器 · 物理学 2009-11-06 E. S. Choi , J. S. Brooks , J. S. Qualls , Y. S. Song

We demonstrate a method to locally control the temperature of photonic crystal devices via micron-scale electrical heaters. The method is used to control the resonant frequency of InAs quantum dots strongly coupled to GaAs photonic crystal…

光学 · 物理学 2009-04-28 Andrei Faraon , Jelena Vuckovic

There is a great interest in the scientific community to perform calorimetry on samples having mass in the nanogram range. A detailed knowledge of the energy (heat) exchange in the fast growing family of micro- and nano-systems could…

应用物理 · 物理学 2021-12-02 S. Veronesi , T. Papa , Y. Murata , S. Heun

We introduce a nanocalorimetric technique based on microsecond-pulsed heating (\mu s-PHnC) that enables high-sensitivity, quasi-isothermal heat capacity measurements on nanoscale samples. Such resolution is critical for exploring…

When a charge current is applied to a junction comprising two different conductors, its temperature increases or decreases depending on the direction of the charge current. This phenomenon is called the Peltier effect, which is used in…

介观与纳米尺度物理 · 物理学 2016-12-30 Shunsuke Daimon , Ryo Iguchi , Tomosato Hioki , Eiji Saitoh , Ken-ichi Uchida

A detailed description of an isoperibol calorimeter for temperatures between 0.05 and 4 K is presented. The proposed setup can provide absolute values of the heat capacity $C$ of small samples (typically 1 mg). The extremely simple design…

仪器与探测器 · 物理学 2012-02-13 M. Brando

In the present work we study, both theoretically and experimentally, the temperature increase in a bulk high-temperature superconductor subjected to applied AC magnetic fields of large amplitude. We calculate analytically the equilibrium…

超导电性 · 物理学 2015-05-18 P Vanderbemden , P Laurent , J-F Fagnard , M Ausloos , N Hari Babu , D A Cardwell

In order to find a highly efficient, environment-friendly magnetic refrigerant, direct measurements of the adiabatic temperature change $\Delta T_{adb}$ is required. Here, in this work, a simple setup for the $\Delta T_{adb}$ measurement is…

材料科学 · 物理学 2023-07-04 Sagar Ghorai , Daniel Hedlund , Martin Kapuscinski , Peter Svedlindh

High-precision low-temperature thermometry is a challenge for experimental quantum physics and quantum sensing. Here we consider a thermometer modelled by a dynamically-controlled multilevel quantum probe in contact with a bath. Dynamical…

量子物理 · 物理学 2019-12-17 Victor Mukherjee , Analia Zwick , Arnab Ghosh , Xi Chen , Gershon Kurizki

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

We present a thermal rectification device concept based on far-field radiative exchange between two selective emitters. Rectification is achieved due to the fact that one of the selective emitters radiative properties are independent on…

介观与纳米尺度物理 · 物理学 2014-07-14 Elyes Nefzaoui , Jérémie Drevillon , Younès Ezzahri , Karl Joulain

A novel approach to calibrate the sensitivity of a differential thermometer, consisting of several thermocouples connected in series (thermopile), has been developed. The goal of this method is to increase the accuracy of small temperature…

仪器与探测器 · 物理学 2020-12-24 Tim Prangemeier , Iman Nejati , Andreas Müller , Philip Endres , Mario Fratzl , Mathias Dietzel

Cooling nanoelectronic devices below 10 mK is a great challenge since thermal conductivities become very small, thus creating a pronounced sensitivity to heat leaks. Here, we overcome these difficulties by using adiabatic demagnetization of…

介观与纳米尺度物理 · 物理学 2018-01-18 M. Palma , C. P. Scheller , D. Maradan , A. V. Feshchenko , M. Meschke , D. M. Zumbühl

We report highly sensitive specific heat measurement on mesoscopic superconducting loops at low temperature. These mesoscopic systems exhibit thermal properties significantly different from that of the bulk materials. The measurement is…

介观与纳米尺度物理 · 物理学 2009-11-11 O. Bourgeois , F. Ong , S. E. Skipetrov , J. Chaussy

The specific heat C of Ce_{0.8}La_{0.2}Al_{3} has been measured as a function of temperature T in magnetic fields up to 14 T. A large peak in C at 2.3 K has recently been ascribed to an anisotropic Kondo effect in this compound. A 14-T…

强关联电子 · 物理学 2009-10-31 R. Pietri , K. Ingersent , B. Andraka

Cellular metabolic rate is a good indicator of the physiological state of cells and its changes, which can be measured by total heat flux accompanying metabolism. Chip calorimeters can provide label-free and high throughput measurements of…

生物物理 · 物理学 2019-03-13 Jihye Kim , Sumin Seo , Jonghyun Kim , Sungmin Nam , Wonhee Lee

Understanding microstructural evolution under extreme thermal conditions is essential for advancing metal additive manufacturing (AM). This work demonstrates the feasibility of employing micro-electro-mechanical system (MEMS) heating…

材料科学 · 物理学 2026-01-12 C. Koenig , P. Mayr , J. R. Jinschek , A. Bastos Fanta

The coupled transport of charge and heat provide fundamental insights into the microscopic thermodynamics and kinetics of materials. We describe a sensitive ac differential resistance bridge that enables measurements of the temperature…

材料科学 · 物理学 2023-12-13 Zhe Cheng , Yu-Ju Huang , Beniamin Zahiri , Patrick Kwon , Paul V. Braun , David G. Cahill

We describe a low-cost and simple setup for hyperthermia measurements on colloidal solutions of magnetic nanoparticles (ferrofluids) with a frequency-adjustable magnetic field in the range 5-500 kHz produced by an electromagnet. By…

材料科学 · 物理学 2008-10-09 L. -M. Lacroix , J. Carrey , M. Respaud

A superconductor with a gap in the density of states or a quantum dot with discrete energy levels is a central building block in realizing an electronic on-chip cooler. They can work as energy filters, allowing only hot quasiparticles to…

介观与纳米尺度物理 · 物理学 2012-03-26 Juha T. Muhonen , Matthias Meschke , Jukka P. Pekola