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Related papers: Modulated-bath AC calorimetry using modified comme…

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Thermoelectric (TE) refrigeration such as Peltier cooler enables a unique opportunity in electric energy to directly convert thermal energy. Here, we propose a TE module with both refrigeration and power generation modes by utilizing…

Materials Science · Physics 2021-01-14 Takahiro Chiba , Takashi Komine

We demonstrated a scalar atomic magnetometer using a micro-fabricated Cs vapor cell. The atomic spin precession is driven by an amplitude-modulated circularly-polarized pump laser resonant on D1 transition of Cs atoms and detected by an…

Atomic Physics · Physics 2019-10-07 Rui Zhang , Terry Dyer , Nathan Brockie , Roozbeh Parsa , Rahul Mhaskar

We use molecular dynamics simulations to study the dynamics of an ensemble of interacting self-propelled semi-flexible polymers in contact with a thermal bath. Our intention is to model complex systems of biological interest. We find that…

Soft Condensed Matter · Physics 2011-05-06 Davide Loi , Stefano Mossa , Leticia F. Cugliandolo

Understanding the microscopic thermal effects of the hydrogel is important for its application in diverse fields, including thermal-related studies in tissue engineering and thermal management for flexible electronic devices. In recent…

We report the temperature dependence of the low-temperature specific heat down to 400 mK of the electron-doped Ba(Fe$_{0.92}$Co$_{0.08}$)$_{2}$As$_{2}$ superconductors. We have measured two samples extracted from the same batch: first…

Superconductivity · Physics 2011-07-20 K. Gofryk , A. S. Sefat , M. A. McGuire , B. C. Sales , D. Mandrus , T. Imai , J. D. Thompson , E. D. Bauer , F. Ronning

AC-specific heat measurements remain as the foremost thermodynamic experimental method to underpin phase transitions in tiny samples. However, its performance under combined extreme conditions of high-pressure, very low temperature and…

Strongly Correlated Electrons · Physics 2020-07-23 Julio Larrea J , V. Martelli , H. M. Rønnow

We describe a compact calorimeter that opens ultra-low temperature heat capacity studies of small metal crystals in moderate magnetic fields. The performance is demonstrated on the canonical heavy Fermion metal YbRh2Si2. Thermometry is…

Instrumentation and Detectors · Physics 2024-07-02 Jan Knapp , Lev V. Levitin , Ján Nyéki , Manuel Brando , John Saunders

In this paper, we investigate the feasibility, robustness and optimization of introducing personal comfort systems (PCS), apparatuses that promises in energy saving and comfort improvement, into a broader range of environments. We report a…

Human-Computer Interaction · Computer Science 2022-12-29 Yi Ju , Xinyuan Ju , Hui Zhang , Bin Cao , Bin Liu , Yingxin Zhu

We describe a heat capacity measurement system for the study of the field-orientation dependence for temperatures down to 50 mK. A "Vector Magnet" combined with a mechanical rotator for the dewar enables the rotation of the magnetic field…

Superconductivity · Physics 2009-11-10 Kazuhiko Deguchi , Takehiko Ishiguro , Yoshiteru Maeno

We report on the first measurement of a temperature dependence of the Casimir-Polder force. This measurement was obtained by positioning a nearly pure 87-Rb Bose-Einstein condensate a few microns from a dielectric substrate and exciting its…

Atomic Physics · Physics 2007-05-23 J. M. Obrecht , R. J. Wild , M. Antezza , L. P. Pitaevskii , S. Stringari , E. A. Cornell

This work introduces a thermoreflectance-based system designed to measure the surface temperature field of activated microelectronic devices at submicron spatial resolution with either a laser or a CCD camera. The article describes the…

Materials Science · Physics 2007-09-13 P. -L. Komarov , M. G. Burzo , P. -E. Raad

Heat dissipation is one of the most serious problems in modern integrated electronics with the continuously decreasing devices size. Large portion of the consumed power is inevitably dissipated in the form of waste heat which not only…

Applied Physics · Physics 2021-07-21 Xue Gong , Ruijie Qian , Huanyi Xue , Weikang Lu , Zhenghua An

A sensor for thermal and thermodynamic measurements of small magnetic systems have been designed and built. It is based on a 5μm-thick suspended polymer membrane, which has a very low heat capacity (≈ 10-6 J/K at nitrogen…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 Olivier Bourgeois , Cristina Macovei , Emmanuel André , Jean-Luc Garden , Jacques Chaussy , Dominique Givord

A quantum thermal device based on three nearest-neighbor coupled spin-1/2 systems controlled by the magnetic field is proposed. We systematically study the steady-state thermal behaviors of the system. When the two terminals of our system…

Quantum Physics · Physics 2024-02-01 Yi-jia Yang , Yu-qiang Liu , Zheng Liu , Chang-shui Yu

We present the design, construction and characterization of Bitter-type electromagnets which can generate high magnetic fields under continuous operation with efficient heat removal for cold atom experiments. The electromagnets are…

Instrumentation and Detectors · Physics 2013-10-29 Dylan Sabulsky , Colin V. Parker , Nathan D. Gemelke , Cheng Chin

We report on the development of an induction based low temperature high frequency ac susceptometer capable of measuring at frequencies up to 3.5 MHz and at temperatures between 2 K and 300 K. Careful balancing of the detection coils and…

Instrumentation and Detectors · Physics 2019-09-04 E. Riordan , J. Blomgren , C. Jonasson , F. Ahrentorp , C. Johansson , D. Margineda , A. Elfassi , S. Michel , F. Dell'ova , G. M. Klemencic , S. R. Giblin

We describe an alternating current method to measure the Nernst effect in superconducting thin films at low temperatures. The Nernst effect is an important tool in the understanding superconducting fluctuations and, in particular, vortex…

Superconductivity · Physics 2020-10-28 Yuxiao Wu , Aviad Frydman , Arnab Roy

A simple and low cost apparatus has been designed and built to measure the electrical resistivity, ($\rho$), of metal and semiconductors in 300-620 K temperature range. The present design is suitable to do measurement on rectangular bar…

General Physics · Physics 2017-04-14 Saurabh Singh , Sudhir K. Pandey

A new DC thermal model of Carbon Nanotube Field Effect Transistors (CNTFETs) is proposed. The model is based on a number of fitting parameters depending on bias conditions by third order polynomials. The model includes three thermal…

Computational Physics · Physics 2015-03-18 Roberto Marani , Anna Gina Perri

Temperature is a fundamental parameter in the study of physical phenomena. At the nanoscale, local temperature differences can be harnessed to design novel thermal nanoelectronic devices or test quantum thermodynamical concepts. Determining…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 Imtiaz Ahmed , Anasua Chatterjee , Sylvain Barraud , John J. L. Morton , James A. Haigh , M. Fernando Gonzalez-Zalba
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