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Recent advances in the synthesis of inorganic and organic nanowires and nanotubes have provided both components for various functional devices and platforms for the study of low- dimensional transport phenomena. However, tremendous…

Mesoscale and Nanoscale Physics · Physics 2015-04-21 Annie Weathers , Li Shi

Thermal diode is a growing technology and important for active thermal flow control. Since the theoretical designing of thermal diode in 2004, various kinds of solid-state thermal diodes have been theoretically and experimentally…

Superconductivity · Physics 2025-10-02 Poonam Rani , Masayuki Mashiko , Keisuke Hirata , Ken-ichi Uchida , Yoshikazu Mizuguchi

We have measured the specific heat and magnetization {\it versus} temperature in a single crystal sample of superconducting La$_{2}$CuO$_{4.11}$ and in a sample of the same material after removing the excess oxygen, in magnetic fields up to…

Strongly Correlated Electrons · Physics 2009-11-10 G. A. Jorge , M. Jaime , L. Civale , C. D. Batista , B. L. Zink , F. Hellman , B. Khaykovich , M. A. Kastner , Y. S. Lee , R. J. Birgeneau

We have studied U_3Si_2 by means of the heat capacity, electrical resistivity, Seebeck and Hall effects, and thermal conductivity in the temperature range 2-300 K and in magnetic fields up to 9 T. All the results obtained point to…

Strongly Correlated Electrons · Physics 2018-07-06 Daniel J. Antonio , Keshav Shrestha , Jason M. Harp , Cynthia A. Adkins , Yongfeng Zhang , Jon Carmack , Krzysztof Gofryk

In this paper, a multilayer thermal infrared detector model has been achieved by finite element method (FEM). All contributions of the thermal conductance were taken into account and calculated. In order to maximize the detector response,…

Applied Physics · Physics 2017-12-08 P. Ramos , A. Andrés , A. López , A. Manzanares

Lattice thermal conductivity of Cu$_2$O was studied using ab initio density functional methods. The performance of generalized gradient approximation, GGA-PBE, and PBE0 exchange-correlation functionals was compared for various electronic…

Materials Science · Physics 2017-08-01 J. Linnera , A. J. Karttunen

Non-equilibrium (NE) molecular dynamics (MD), or NEMD, gives a "direct" simulation of thermal conductivity kappa. Heat H(x) is added and subtracted in equal amounts at different places x. After steady state is achieved, the temperature T(x)…

Materials Science · Physics 2016-12-06 Philip B. Allen , Yerong Li

We have conducted temperature and frequency dependent transport measurements in amorphous Nb_x Si_{1-x} samples in the insulating regime. We find a temperature dependent dc conductivity consistent with variable range hopping in a Coulomb…

Strongly Correlated Electrons · Physics 2009-11-07 Erik Helgren , George Grüner , Martin Ciofalo , David V. Baxter , John P. Carini

The thermal conductivity of suspended single-layer graphene was measured as a function of temperature using Raman scattering spectroscopy on clean samples prepared directly on a prepatterned substrate by mechanical exfoliation without…

Mesoscale and Nanoscale Physics · Physics 2011-03-18 Jae-Ung Lee , Duhee Yoon , Hakseong Kim , Sang Wook Lee , Hyeonsik Cheong

We present the technical details of a broadband microwave spectrometer for measuring the complex conductance of thin films covering the range from 50 MHz up to 16 GHz in the temperature range 300 mK to 6 K and at applied magnetic fields up…

Instrumentation and Detectors · Physics 2015-06-18 Wei Liu , LiDong Pan , N. P. Armitage

Gallium oxide (Ga$_2$O$_3$) has attracted significant interest for its unique potential especially in power electronics. However, its low and anisotropic thermal conductivity poses a major challenge for heat dissipation. Here, we explore an…

Materials Science · Physics 2025-10-01 Wenjiang Zhou , Nianjie Liang , Wei Xiao , Zhaofei Tong , Fei Tian , Bai Song

Purpose: To theoretically and experimentally study implant lead tip heating caused by radiofrequency (RF) power deposition in different wire configurations that contain loop(s). Methods: Maximum temperature rise caused by RF heating was…

Medical Physics · Physics 2024-12-20 Lydia J Bardwell Speltz , Seung-Kyun Lee , Yunhong Shu , Matt A Bernstein

Heat pipe is an efficient heat transfer element based on two-phase natural circulation, which has advantages of simple structure, strong heat transfer ability, and good isothermal performance. Heat pipes are widely used in heat transfer and…

Applied Physics · Physics 2024-11-19 Ziyi Wang , Huang Zhang , Shanfang Huang

We present experimental results for the thermal conductivity $\kappa$ of the pseudo 2-leg ladder material $\rm CaCu_2O_3$. The strong buckling of the ladder rungs renders this material a good approximation to a $S=1/2$ Heisenberg-chain.…

Strongly Correlated Electrons · Physics 2010-10-15 C. Hess , H. ElHaes , A. Waske , B. Büchner , C. Sekar , G. Krabbes , F. Heidrich-Meisner , W. Brenig

Solid-state nanopore gating inspired by biological ion channels is gaining increasing traction due to a large range of applications in biosensing and drug delivery. Integration of stimuli-responsive molecules such as…

Recent experimental results: (i) the measurement of the $T \ln T$ specific heat in cuprates and the earlier such results in some heavy fermion compounds, (ii) the measurement of the single-particle scattering rates, (iii) the density…

Strongly Correlated Electrons · Physics 2020-07-15 Chandra M. Varma

Cold ions trapped in the vicinity of conductive surfaces experience heating of their oscillatory motion. Typically, the rate of this heating is orders of magnitude larger than expected from electric field fluctuations due to thermal motion…

Atomic Physics · Physics 2018-01-17 Ivan A. Boldin , Alexander Kraft , Christof Wunderlich

The thermal conductivity of pionic medium has been evaluated with the help of its standard expression from the relaxation time approximation, where inverse of pion relaxation time or pion thermal width has been obtained from the imaginary…

Nuclear Theory · Physics 2015-07-08 Sabyasachi Ghosh

Thermal conductivity of compacted bentonite is one of the most important properties in the design of high-level radioactive waste repositories where this material is proposed for use as a buffer. In the work described here, a thermal probe…

Geophysics · Physics 2008-11-06 Anh-Minh Tang , Yu-Jun Cui , Trung Tinh Le

This paper consists of two parts. The first part proposes a new methodological framework within which the heat conductivity in 1D lattices can be studied. The total process of heat conductivity is decomposed into two contributions where the…

Chaotic Dynamics · Physics 2011-03-21 T. Yu. Astakhova , V. N. Likhachev , G. A. Vinogradov