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We investigate the complex conductivity of superconductors under a DC bias based on the Keldysh-Eilenberger formalism of nonequilibrium superconductivity. This framework allows us to account for the Higgs mode and impurity scattering…

Superconductivity · Physics 2024-10-21 Takayuki Kubo

The polymer (PBDTTT-c) p-doped with the molecular dopant (Mo(tfd-COCF3)3) exhibits a decline in transport properties at high doping concentrations, which limits the performance attainable through organic semiconductor doping. Scanning…

Based on the $t-t'-U-V$ model with proper chosen parameters for describing the cuprate superconductors, it is found that near the optimal doping at low temperature ($T$), only the pure d-wave superconductivity ($d$SC) prevails and the…

Superconductivity · Physics 2009-11-10 Hong-Yi Chen , C. S. Ting

Semiconductor integrated circuits operated at cryogenic temperature will play an essential role in quantum computing architectures. These can offer equivalent or superior performance to their room-temperature counterparts while enabling a…

Mesoscale and Nanoscale Physics · Physics 2025-07-18 Jonathan Eastoe , Grayson M. Noah , Debargha Dutta , Alessandro Rossi , Jonathan D. Fletcher , Alberto Gomez-Saiz

The transition metal dichalcogenide (TMD) $1T$-TaS$_{2}$ exhibits a rich set of charge density wave (CDW) orders. Recent investigations suggested that using light or electric field can manipulate the commensurate (C) CDW ground state. Such…

Strongly Correlated Electrons · Physics 2016-09-15 D. F. Shao , R. C. Xiao , W. J. Lu , H. Y. Lv , J. Y. Li , X. B. Zhu , Y. P. Sun

We present a new technique for measuring the critical temperature Tc in the high pressure, high Tc electron-phonon-driven superconducting hydrides. This technique does not require connecting leads to the sample. In the multiphonon region of…

Superconductivity · Physics 2018-08-01 J. P. Carbotte , E. J. Nicol , T. Timusk

We report the transmission over a wide frequency range (far infrared - visible) of pristine and hole-doped, free-standing carbon nanotube films at temperatures between 50 K and 300 K. Optical constants are estimated by Kramers-Kronig…

Materials Science · Physics 2013-05-29 F. Borondics , K. Kamaras , M. Nikolou , D. B. Tanner , Z. H. Chen , A. G. Rinzler

The superconducting properties of a recently proposed phenomenological model for a weakly doped antiferromagnet are analyzed, taking into account fluctuations of the phase of the order parameter. In this model, we assume that the doped…

Superconductivity · Physics 2009-11-11 V. M. Loktev , V. M. Turkowski

Doping is one of the most prominent techniques to alter properties of a given material. Herein, the influence of the electron- and hole-doping on the selected superconducting properties of graphene are considered. In details, the…

Superconductivity · Physics 2023-04-12 Ewa A. Drzazga-Szczęśniak , Adam Z. Kaczmarek

Lately, there has been much interest in high temperature superconductors, and more recently hydrogen-based superconductors. This work offers a simple model which explains the behavior of the superconducting gap based on BCS theory, and…

Superconductivity · Physics 2018-07-04 Daniel Kaplan , Yoseph Imry

Results of detailed simulations of the charge transfer inefficiency of a prototype serial readout CCD chip are reported. The effect of radiation damage on the chip operating in a particle detector at high frequency at a future accelerator…

Instrumentation and Detectors · Physics 2009-11-13 Andre Sopczak

The development of advanced diagnostic systems to measure and optimize emerging energetic material performance is critical for the defeat of Chemical Warfare Agents (CWA). This study presents an integrated multi-spectroscopic approach to…

Chemical Physics · Physics 2026-01-01 Preetom Borah , Elif Irem Senyurt , Rohit Berlia , Jesse Grant , Edward Dreizin , Timothy P Weihs

Doping of semiconductors is essential in modern electronic and photonic devices. While doping is well understood in bulk semiconductors, the advent of carbon nanotubes and nanowires for nanoelectronic and nanophotonic applications raises…

Materials Science · Physics 2015-05-18 Catalin D. Spataru , François Léonard

Capacitive-coupled Low-Gain Avalanche Diode (AC-LGAD) sensors are being developed for high-energy particle physics experiments as a detector which provides fast time information with fine spatial resolution. This paper describes…

Instrumentation and Detectors · Physics 2023-01-25 Sayuka Kita , Koji Nakamura , Tatsuki Ueda , Ikumi Goya , Kazuhiko Hara

The dependence of the superconducting gaps in epitaxial Ba(Fe_{1-x}Co_{x})_2As_2 thin films on the nominal doping x (0.04 \leq x \leq 0.15) was studied by means of point-contact Andreev-reflection spectroscopy. The normalized conductance…

Superconductivity · Physics 2013-12-10 P. Pecchio , D. Daghero , G. A. Ummarino , F. Kurth , B. Holzapfel , K. Iida , R. S. Gonnelli

We derive a model for the highest occupied molecular orbital band of a C60 crystal which includes on-site electron-electron interactions. The form of the interactions are based on the icosahedral symmetry of the C60 molecule together with a…

Superconductivity · Physics 2009-11-07 M. Granath , S. Ostlund

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

We propose to raise the critical temperature $T_c$ for superconductivity in doped C$_{60}$ molecular crystals by increasing the electronic density of states at the Fermi level $N(E_F)$ and thus the electron-phonon coupling constant in…

Superconductivity · Physics 2018-04-18 Dogan Erbahar , Dan Liu , Savas Berber , David Tomanek

The effects of the oxidation atmosphere and crystal faces on the interface-trap density was examined by using constant-capacitance deep-level transient spectroscopy to clarify the origin of them. By comparing the DLTS spectra of the…

Simultaneously optimizing performances, processability and fabrication cost of organic electronic materials is the continual source of compromise hindering the development of disruptive applications. In this work, we identified a strategy…

Materials Science · Physics 2020-03-11 Khaoula Ferchichi , Ramzi Bourguiga , Kamal Lmimouni , Sebastien Pecqueur
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