نتایج جستجو برای: high temperature superconductor
تعداد نتایج: 2388762 فیلتر نتایج به سال:
We investigate the possibility of spin texture in bilayer cuprate superconductor $\rm Bi_2Sr_2CaCu_2O_{8+\delta}$ using cluster dynamical mean field theory (CDMFT). The one-band Hubbard model with a small interlayer hopping and Rashba spin-orbit coupling is used to describe material. $d$-wave order parameter not much affected by presence coupling, but triplet component appears. find circulating...
We examine the effect of an impurity on the nearby tunneling conductance in an anisotropically-gapped superconductor. The variation of the conductance has pronounced spatial dependence which depends strongly on the Fermi surface location of gap extrema. In particular, different gap symmetries produce profoundly different spatial features in the conductance. These effects may be detectable with ...
An extensive interlaboratory comparison was conducted on high temperature superconductor (HTS) critical-current measurements. This study was part of an international cooperative effort through the Versailles Project on Advanced Materials and Standards (VAMAS). The study involved six U.S. laboratories that are recognized leaders in the field of HTS. This paper includes the complete results from ...
This paper reports results of the test of HTS conductor manufactured by Intermagnetics General Corporation (IGC). The HTS version of the CESR dual bore quadrupole magnet has been analyzed using data obtained in this test. 1 HTS test The main purpose of the experiments described below was to obtain HTS characteristics needed for magnet design. The prime goal was to measure the HTS performance de...
We present a microscopic model of the high temperature superconductors which provides evidence for non-Fermi liquid behaviour. Starting from the Anderson Lattice model, we derive a three-band model of a CuO2 plane. We show that the popular t-J model is a subset of our model under certain assumptions which we show to be unphysical. We study the three-band model on the CuO chain. Using two exact ...
A superconducting state is characterized by the gap in the electronic density of states, which vanishes at the superconducting transition temperature T(c). It was discovered that in high-temperature superconductors, a noticeable depression in the density of states, the pseudogap, still remains even at temperatures above T(c). Here, we show that a pseudogap exists in a conventional superconducto...
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