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The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device. The observed thermal conductivity is more than 3000 W/K m at room temperature, which is two orders of…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 P. Kim , L. Shi , A. Majumdar , P. L. McEuen

The temperature dependencies of specific heat and spin susceptibility of a coupled $d_{x^2-y^2} +id_{xy}$ superconductor in the presence of a weak $d_{xy}$ component are investigated in the tight-binding model (1) on square lattice and (2)…

Superconductivity · Physics 2009-10-31 Angsula Ghosh , Sadhan K. Adhikari

This letter reports thermopower and conductivity measurements through the metal-insulator transition for 2-dimensional electron gases in high mobility Si-MOSFET's. At low temperatures both thermopower and conductivity show critical behavior…

Disordered Systems and Neural Networks · Physics 2007-05-23 R. Fletcher , V. M. Pudalov , A. D. B. Radcliffe , C. Possanzini

Determination of the molecular Kondo temperature $T_K$ poses a challenge in most cases when the experimental temperature cannot be tuned to a sufficient extent. We show how this ambiguity can be resolved if additional control parameters are…

The thermopower of mesoscopic normal metal/superconductor structures has been measured at low temperatures. Effect of supercurrent present in normal part of the structure was studied in two cases: when it was created by applied external…

Superconductivity · Physics 2007-05-23 J. Zou , I. Sosnin , P. Virtanen , M. Meschke , V. T. Petrashov , T. T. Heikkila

We propose a scheme to realize the single-photon transport affected by the temperature. The scheme is composed by a waveguide-atom interacting structure linked to a thermal bath. The single-photon reflection coefficient can be tuned by…

Quantum Physics · Physics 2023-08-16 Wei-Bin Yan , Zhong-Xiao Man , Ying-Jie Zhang , Yun-Jie Xia

Our research efforts in displacement measurement interferometry focused on long-term drifts initiated an extended experimental investigation in the interferometric assemblies of our design. We aimed to analyze, characterize and tackle the…

Instrumentation and Detectors · Physics 2024-08-14 Simon Rerucha , Miroslava Hola , Ondrej Cip , Josef Lazar , Jindrich Oulehla , Bretislav Mikel

A polycrystalline sample of the MgB_2 superconductor was investigated by measurements of the electrical resistivity, the thermopower and the thermal conductivity in the temperature range between 1.8K and 300K in zero magnetic field. The…

We report a detailed scaling analysis of resistivity \rho(T,n) measured for several high-mobility 2D electron systems in the vicinity of the 2D metal-insulator transition. We analyzed the data using the two parameter scaling approach and…

Strongly Correlated Electrons · Physics 2013-03-08 D. A. Knyazev , O. E. Omel'yanovskii , V. M. Pudalov , I. S. Burmistrov

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…

Materials Science · Physics 2010-11-09 A. G. Petukhov , Igor Zutic , Steven C. Erwin

We study the temperature and gate voltage dependence of the conductance of the single electron transistor focusing on highly conducting devices. Electron tunneling is treated nonperturbatively by means of path integral Monte Carlo…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Georg Goeppert , Bruno Huepper , Hermann Grabert

We investigate the electron transport properties of a model magnetic molecule formed by two magnetic centers whose exchange coupling can be altered with a longitudinal electric field. In general we find a negative differential conductance…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Sujeet K. Shukla , Stefano Sanvito

We present a superconducting microresonator thermometer based on two-level systems (TLS) that is drop-in compatible with cryogenic microwave systems. The operational temperature range is 50-1000~mK (which may be extended to 5~mK), and the…

Instrumentation and Detectors · Physics 2020-11-16 J. Wheeler , M. R. Vissers , M. Malnou , J. Hubmayr , J. N. Ullom , J. Gao

Superconducting circuits provide a versatile and controllable platform for studies of fundamental quantum phenomena as well as for quantum technology applications. A conventional technique to read out the state of a quantum circuit or to…

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…

Two-dimensional (2D) semiconductors have demonstrated great potential for next-generation electronics and optoelectronics. However, the current 2D semiconductors suffer from intrinsically low carrier mobility at room temperature, which…

Materials Science · Physics 2023-03-08 Chenmu Zhang , Ruoyu Wang , Himani Mishra , Yuanyue Liu

We present a qualitative model study of energy and temperature dependence of hot electron magnetotransport. This model calculations are based on a simple argument that the inelastic scattering strength of hot electrons is strongly spin and…

Condensed Matter · Physics 2009-11-07 Jisang Hong

Linear temperature dependence of transport coefficients in metals is often ascribed to non-Fermi-liquid physics. Here we demonstrate the $T$-linear behavior of nonlocal conductivity in a clean 2D electron fluid, where carrier collisions…

Mesoscale and Nanoscale Physics · Physics 2025-02-11 Serhii Kryhin , Qiantan Hong , Leonid Levitov

Correlating structure with electronic functionality is central to the engineering of quantum materials and devices whose properties depend sensitively on disorder. Transmission electron microscopy (TEM) offers high spatial resolution…

Recent experiments strongly indicate deep connections between transports of strange metal and high $T_c$ superconductors. For instance, it is known that the dependence of the zero-temperature phase stiffness on the critical superconducting…

High Energy Physics - Theory · Physics 2025-02-18 Zhenguo Wang , Xian-Hui Ge , Shuta Ishigaki