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The dynamics of a two-dimensional superconductor under a constant electric field $E$ is studied by using the gauge/gravity correspondence. The pair breaking current induced by $E$ first increases to a peak value and then decreases to a…

High Energy Physics - Theory · Physics 2017-03-01 Hua-Bi Zeng , Yu Tian , Zheyong Fan , Chiang-Mei Chen

Electric transport measurements of the charge frustrated LuFe2O4, in which the charge ordering (CO) and electronic ferroelectricity are found, reveal strong nonlinear electric conduction upon application of electrical field in both single…

Strongly Correlated Electrons · Physics 2009-11-13 L. J. Zeng , H. X. Yang , Y. Zhang , H. F. Tian , C. Ma , Y. B. Qin , Y. G. Zhao , J. Q. Li

We report temperature-dependent polarized optical conductivity [$\sigma(\omega)$] spectra of CeFe$_2$Al$_{10}$, which is a reference material for CeRu$_2$Al$_{10}$ and CeOs$_2$Al$_{10}$ with an anomalous magnetic transition at 28 K. The…

Strongly Correlated Electrons · Physics 2015-05-20 Shin-ichi Kimura , Yuji Muro , Toshiro Takabatake

We report the superconducting transition temperature of 6Li between 16-26 GPa, the lightest system to exhibit superconductivity to date. The superconducting phase diagram of 6Li is compared to that of 7Li through simultaneous measurement in…

Superconductivity · Physics 2015-06-22 Anne Marie J. Schaeffer , Scott R. Temple , Jasmine K. Bishop , Shanti Deemyad

Recent observations of superconducting like transition at 286 K in Ag and Ag nanostructures by Thapa et al. (arxiv: 1807.08572) have rekindled the hope for room temperature superconductivity under ambient conditions. We also investigated…

Superconductivity · Physics 2019-06-04 M. K. Hooda , P. Kumar , Viswanath Balakrishnan , C. S. Yadav

The upper critical field Hc2 anisotropy of Ca10(PtnAs8)(Fe2-xPtxAs2)5 (n = 3, 4) single crystals with long FeAs interlayer distance (d) was studied by angular dependent resistivity measurements. A scaling of the angular dependent…

Superconductivity · Physics 2015-07-13 F. F. Yuan , Y. Sun , W. Zhou , X. Zhou , Q. P. Ding , K. Iida , R. Huehne , L. Schultz , T. Tamegai , Z. X. Shi

Transitions to immeasurably small electrical resistance in thin films of Ag/Au nanostructure-based films have generated significant interest because such transitions can occur even at ambient temperature and pressure. While the zero-bias…

The thermodynamic parameters of the superconducting state, that induces in ${\rm Si_{2}H_{6}}$ under the pressure at 275 GPa, have been calculated. In the framework of the Eliashberg formalism, it has been shown that the critical…

Superconductivity · Physics 2015-06-11 R. Szczȩśniak , A. P. Durajski

The ac electrical transport properties of polycrystalline Pr$_2$MgZrO$_6$ (PMZ) have been investigated using conductivity and impedance spectroscopic techniques. The crystal structure of PMZ has been determined to be monoclinic through a…

Materials Science · Physics 2023-07-26 Moumin Rudra , T. P. Sinha

Recent experimental data (H. Nam et al., Phys. Rev. B 100, 094512 (2019)) of critical temperature and gaps measured on superconductor/normal metal heterostructure Pb/Ag, epitaxially grown, shown a interesting not usual behaviour. The…

Superconductivity · Physics 2020-01-29 G. A. Ummarino

The superconducting properties of polycrystalline Sr0.6K0.4Fe2As2 were strongly influenced by Ag doping (Supercond. Sci. Technol. 23 (2010) 025027). Ag addition is mainly dominated by silver diffusing, so the annealing process is one of the…

Superconductivity · Physics 2010-07-06 Zhiyu Zhang , Lei Wang , Yanpeng Qi , Zhaoshun Gao , Dongliang Wang , Xianping Zhang , Yanwei Ma

In electrochemical systems, an understanding of the underlying transport processes is required to aid in their better design. This includes knowledge of possible near-electrode convective mixing that can enhance measured currents. Here, for…

Fluid Dynamics · Physics 2021-09-15 Nakul Pande , Jeffery A. Wood , Guido Mul , Detlef Lohse , Bastian T. Mei , Dominik Krug

Linear magnetoelectric effect is an attractive phenomenon in condensed matters and provides indispensable technological functionalities. Here a colossal linear magnetoelectric effect with diagonal component alfa_33 reaching up to ~480 ps/m…

Materials Science · Physics 2023-10-09 Yuting Chang , Yakui Weng , Yunlong Xie , Bin You , Junfeng Wang , Liang Li , Jun-Ming Liu , Shuai Dong , Chengliang Lu

The electric conductivity of Dirac electrons in the organic conductor $\alpha$-STF$_2$I$_3$ (STF = bis(ethylenedithio)diselenadithiafulvalene), which has an isostructure of ET(=bis(ethylenedithio)tetrathiafulvalene), has been theoretically…

Mesoscale and Nanoscale Physics · Physics 2022-04-28 Yoshikazu Suzumura , Toshio Naito

We have studied the effect of thermal effects on the structural and transport response of Ag atomic-size nanowires generated by mechanical elongation. Our study involves both time-resolved atomic resolution transmission electron microscopy…

Materials Science · Physics 2012-06-13 M. J. Lagos , P. A. S. Autreto , D. S. Galvao , D. Ugarte

Various types of defects in MoS2 monolayers and their influence on the electronic structure and transport properties have been studied using the Density-Functional based Tight-Binding method in conjunction with the Green's Function…

Materials Science · Physics 2014-03-04 Mahdi Ghorbani-Asl , Andrey N. Enyashin , Agnisezka Kuc , Gotthard Seifert , Thomas Heine

We investigated the superconducting and transport properties in FeTe$_{1-x}$Se$_{x}$ (0.1 $\leq$ $x$ $\leq$ 0.4) single crystals prepared by O$_2$-annealing. Sharp superconducting transition width observed in magnetization measurement and…

Superconductivity · Physics 2015-02-17 Yue Sun , Toshihiro Taen , Tatsuhiro Yamada , Yuji Tsuchiya , Sunseng Pyon , Tsuyoshi Tamegai

We reported a controllable way of removing excess Fe in Fe1+yTe0.6Se0.4 by annealing in a fixed amount of O2. Compared with the weak superconductivity induced by dilute acids, O2 annealing can successfully induce bulk superconductivity.…

Superconductivity · Physics 2013-04-08 Yue Sun , Toshihiro Taen , Yuji Tsuchiya , Qingping Ding , Sunsen Pyon , Zhixiang Shi , Tsuyoshi Tamegai

Piezoresistance, the change of a material's electrical resistance ($R$) in response to an applied mechanical stress ($\sigma$), is the driving principle of electromechanical devices such as strain gauges, accelerometers, and cantilever…

Strongly Correlated Electrons · Physics 2022-07-20 S. Ghosh , C. Lane , F. Ronning , E. D. Bauer , J. D. Thompson , J. -X. Zhu , P. F. S. Rosa , S. M. Thomas

Chromium (Cr) is a transition metal element with 3$d$ orbital electrons. In most compounds containing Cr, due to the correlation effect, twofold features of localization and itinerancy are expected. The localization gives rise to a magnetic…

Superconductivity · Physics 2022-10-10 Zhengyan Zhu , Ying-Jie Zhang , Yiwen Li , Qing Li , Wen Duan , Hai-Hu Wen