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We introduce and solve a model of a thermometric measurement on a driven glassy system in a stationary state. We show that a thermometer with a sufficiently slow response measures a temperature higher than that of the environment, but that…

统计力学 · 物理学 2009-10-31 Raphael Exartier , Luca Peliti

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…

介观与纳米尺度物理 · 物理学 2016-08-16 Olivier Bourgeois , Cristina Macovei , Emmanuel André , Jean-Luc Garden , Jacques Chaussy , Dominique Givord

The reduction of the thermal conductivity in nanostructures opens up the possibility of exploiting for thermoelectric purposes also materials such as silicon, which are cheap, available and sustainable but with a high thermal conductivity…

介观与纳米尺度物理 · 物理学 2018-02-14 G. Pennelli , E. Dimaggio , M. Macucci

A three-way coupled thermo-mechanical fracture model is presented to predict the damage of brittle ceramics, in particular {\alpha}-SiC, over a wide range of temperatures (20-1400 C). Predicting damage over such a range of temperatures is…

材料科学 · 物理学 2026-03-06 Jason Sun , Yu Chen , Joseph J. Marziale , Eric A. Walker , David Salac , James Chen

Noncollinear magnetic moments in antiferromagnets (AFM) lead to a complex behavior of electrical transport, even to a decreasing resistivity due to an increasing temperature. Proper treatment of such phenomena is required for understanding…

材料科学 · 物理学 2020-06-19 David Wagenknecht , Karel Výborný , Karel Carva , Ilja Turek

The gain of silicon photomultipliers (SiPMs) increases with bias voltage and decreases with temperature. To operate SiPMs at stable gain, the bias voltage can be readjusted to compensate for temperature changes. We have tested this concept…

仪器与探测器 · 物理学 2019-05-22 G. Eigen , J. Cvach , J. Kvasnicka , I. Polak , A. Træet , J. Zalieckas

Dynamic magnetic properties and ageing phenomena of the re-entrant ferromagnet (Fe0.20Ni0.80)75P16B6Al3 are investigated by time dependent zero field cooled magnetic relaxation, m (t), measurements. The influence of a temperature cycling…

无序系统与神经网络 · 物理学 2009-10-31 Kristian Jonason , Per Nordblad

We calculate the transition temperature in ultranarrow superconducting wires as a function of wire width, resistance and applied magnetic field. We compare the results of first-order perturbation theory and the non-perturbative resummation…

超导电性 · 物理学 2009-10-31 Robert A Smith , Beccy S Handy , Vinay Ambegaokar

Molecular conduction channels between two ferromagnetic electrodes can produce strong exchange coupling and dramatic effect on the spin transport, thus enabling the realization of novel logic and memory devices. However, fabrication of…

介观与纳米尺度物理 · 物理学 2019-12-04 Pawan Tyagi

We add relaxation mechanisms that mimic the effect of temperature and non-equilibrium driving to the recently-proposed spiral model which jams at a critical density rho_c < 1. This enables us to explore unjamming by temperature or driving…

软凝聚态物质 · 物理学 2010-05-20 Yair Shokef , Andrea J. Liu

We propose a model of carrier-mediated ferromagnetism in semiconductors that accounts for the temperature dependence of the carriers. The model permits analysis of the thermodynamic stability of competing magnetic states, opening the door…

材料科学 · 物理学 2010-11-09 A. G. Petukhov , Igor Zutic , Steven C. Erwin

This paper presents an analysis of the conceptual design of a novel silicon suspension for the cryogenic test-mass mirrors of the low-frequency detector of the Einstein Telescope gravitational-wave observatory. In traditional suspensions,…

Microelectromechanical systems (MEMS) can offer a competitive alternative for conventional technology in electrical precision measurements. This article summarises recent work in development of MEMS solutions for electrical metrology.…

仪器与探测器 · 物理学 2007-07-05 Antti Manninen , Anu Karkkainen , Nadine Pesonen , Aarne Oja , Heikki Seppa

Inspired by some recent experiments and numerical works related to nanoresonators, we perform classical molecular dynamics simulations to investigate the thermal expansion and the ability of the device to act as a strain sensor assisted by…

介观与纳米尺度物理 · 物理学 2016-08-24 Agustín Mancardo Viotti , Alejandro G. Monastra , Mariano F. Moreno , M. Florencia Carusela

In this paper, CFD approach is used to simulate the thermal behavior in a sensitive high-Q gyroscope. The electromagnetically driving wires, in which AC current flows, are treated as Joule heat sources in the model. We found that the…

其他计算机科学 · 计算机科学 2007-11-29 Fei Duan , J. Jiao , Y. Wang

Using a one-dimensional tight-binding Anderson model, we study a disordered nanowire in the presence of an external gate which can be used for depleting its carrier density (field effect transistor device configuration). In this first…

介观与纳米尺度物理 · 物理学 2014-05-01 Riccardo Bosisio , Geneviève Fleury , Jean-Louis Pichard

We study the nonequilibrium dynamics of a mesoscopic metallic ring threaded by a time-dependent magnetic field and coupled to an electronic reservoir. We analyze the relation between the (non-stationary) real-time Keldysh and retarded Green…

介观与纳米尺度物理 · 物理学 2009-11-10 Liliana Arrachea , Leticia F. Cugliandolo

The stability of magnetic skyrmions has been investigated in the past, but mostly in the absence of thermal fluctuations. However, thermal spin fluctuations modify the magnetic properties (exchange stiffness, Dzyaloshinskii-Moriya…

材料科学 · 物理学 2023-10-06 Ioannis Charalampidis , Joseph Barker

We apply the muffin-tin effective medium approximation to calculate the temperature dependence of the resistivity and of the thermopower of amorphous and liquid metals. The results show unambiguously that a large resistivity is accompanied…

凝聚态物理 · 物理学 2009-10-28 Ulrich Werner , Raymond Fresard

The effect of the electron temperature on both the light absorption and the scattering by metal nanoparticles (MNs) with excitation of the surface plasmon electron vibrations is studied in the framework of the kinetic theory. The formulae…

介观与纳米尺度物理 · 物理学 2013-11-25 N. I. Grigorchuk