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相关论文: Response to tilted magnetic fields in Bi2Sr2CaCu2O…

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The transverse Meissner effect (TME) in the highly layered superconductor $Bi_2Sr_2CaCu_2O_{8+y}$ with columnar defects is investigated by transport measurements. We present detailed evidence for the persistence of the Bose glass phase for…

超导电性 · 物理学 2007-05-23 V. Ta Phuoc , E. Olive , R. De Sousa , A. Ruyter , L. Ammor , J. C. Soret

We investigate the vortex phase diagram in untwinned YBaCuO single crystals with columnar defects. These randomly distributed defects, produced by heavy ion irradiation, are expected to induce a ``Bose Glass'' phase of localized vortices…

超导电性 · 物理学 2009-10-31 A. W. Smith , H. M. Jaeger , T. F. Rosenbaum , A. M. Petrean , W. K. Kwok , G. W. Crabtree

The statistical mechanics of thermally excited vortex lines with columnar defects can be mapped onto the physics of interacting quantum particles with quenched random disorder in one less dimension. The destruction of the Bose glass phase…

无序系统与神经网络 · 物理学 2009-11-11 Gil Refael , Walter Hofstetter , David R. Nelson

Monolayers of a prototypical cuprate high transition-temperature ($T_C$) superconductor $Bi_2Sr_2CaCu_2O_{8+\delta}$ (Bi2212) was recently found to show $T_C$ and other electronic properties similar to those of the bulk. The robustness of…

High-temperature superconductors (high-Tc SCs) host a rich landscape of electronic phases encompassing the pseudogap, strange metal, superconducting, antiferromagnetic insulating, and Fermi-liquid regimes. The superconducting phase is…

We study moving periodic structures in presence of correlated disorder using renormalisation group. We find that the effect of disorder persists at all velocities resulting at zero temperature in a Moving Bose Glass phase with transverse…

凝聚态物理 · 物理学 2009-10-31 Pascal Chauve , Pierre Le Doussal , Thierry Giamarchi

Interface-induced superconductivity has recently been achieved by stacking a magnetic topological insulator layer on an antiferromagnetic FeTe layer. However, the mechanism driving this emergent superconductivity remains unclear. Here, we…

The hole concentration (p)(delta), the transition temperature Tc, the intragrain penetration depth lambda, and the Meissner effect were measured for annealed RuSr2(Gd,Ce)2Cu2O10+delta samples. The intragrain superconducting transition…

超导电性 · 物理学 2009-11-07 Y. Y. Xue , B. Lorenz , A. Baikalov , D. H. Cao , Z. G. Li , C. W. Chu

We report on transport measurements in a Bi-2212 single crystal with columnar defects parallel to the c-axis. The tilt of the magnetic field away from the direction of the tracks is studied for filling factors f=B_z/B_phi<1. Near the Bose…

超导电性 · 物理学 2007-05-23 V. Ta Phuoc , A. Ruyter , R. de Sousa , L. Ammor , E. Olive , J. C. Soret

The introduction of a large density of columnar defects in %underdoped Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ crystals does not, at sufficiently low vortex densities, increase the irreversibility line beyond the first order transition…

We report the discovery of a low-temperature phase transition in Bi_2Sr_2Ca(Ni_xCu_{1-x})_20_8 high temperature superconductor. This transition manifests itself as a sharp reduction of the thermal conductivity of the samples at a…

超导电性 · 物理学 2008-02-03 R. Movshovich , M. A. Hubbard , M. B. Salamon , A. V. Balatsky , R. Yoshizaki , J. L. Sarrao

We report on magnetization measurements performed on a single crystal of Bi{2+x}Sr{2-x}CuO{6+\delta} with Tc\sim7 K for H||c-axis. The isofield M(T) curves show a large reversible region, with a pronounced rounding effect as M approaches…

Columnar defects provide effective pinning centers for magnetic flux lines in high--$T_{\rm c}$ superconductors. Utilizing a mapping of the statistical mechanics of directed lines to the quantum mechanics of two--dimensional bosons, one…

凝聚态物理 · 物理学 2011-12-07 Uwe C. Täuber

The observance of vortex and anti-vortex effects in bulk crystals can prove the existence of phase-disordered superconductivity in the bulk. To gain insights into the mechanisms that govern superconducting transition in copper oxide…

A scaling theory of vortex motion in Bose glass superconductors with currents parallel to the common direction of the magnetic field and columnar defects is presented. Above the Bose-glass transition the longitudinal DC resistivity…

凝聚态物理 · 物理学 2009-10-28 David R. Nelson , Leo Radzihovsky

There is growing evidence that the superconducting semimetal FeSe ($T_c\sim8$ K) is in the crossover regime between weak-coupling Bardeen-Cooper-Schrieffer (BCS) and strong-coupling Bose-Einstein-condensate (BEC) limits. We report on…

We used a micromechanical torsional oscillator to measure the magnetic response of a twinned YBa$_2$Cu$_3$O$_{7-\delta}$ single crystal disk near the Bose glass transition. We observe an anomaly in the temperature dependence of the…

无序系统与神经网络 · 物理学 2015-07-22 D. J. Pérez-Morelo , E. Osquiguil , A. B. Kolton , G. Nieva , I. W. Jung , D. López , H. Pastoriza

2H-NbSe2 is the prototype and most frequently studied of the well-known transition metal dichalcogenide (TMDC) superconductors. Widely acknowledged to be a conventional superconductor, its transition temperature to the superconducting state…

超导电性 · 物理学 2017-03-28 Huixia Luo , Judyta Strychalska-Nowak , Jun Li , Jing Tao , Tomasz Klimczuk , Robert J. Cava

Advances in creating stable dipolar Bose systems, and ingenious box traps have generated tremendous interest. Theory study of dipolar bosons at finite temperature (T) has been limited. Motivated by these, we study 2D dipolar bosons at…

量子气体 · 物理学 2021-04-21 Pengtao Shen , Khandker F. Quader

Using ultrafast optical techniques, we probe the hole-doping dependence of the electron-boson coupling constant $\lambda$ in Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$. In the overdoped region, we observe a correlation between ($\lambda$) and…

超导电性 · 物理学 2008-06-18 Jian-Xin Zhu , Elbert E. M. Chia , T. Tamegai , H. Eisaki , Kyu-Hwan Oh , S. -I. Lee , A. J. Taylor
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