Results 141 to 150 of about 66,245 (182)
Some of the next articles are maybe not open access.
High-Temperature Superconductors
Science, 1997Developing new approaches for improving the critical current density ( J c) in bulk high-temperature superconductors is important to the commercialization of these materials in power transmission cables and other applications ([1][1]). I. Chong et al . (Reports,[2 May, p.
Charles M. Lieber, Peidong Yang
openaire +2 more sources
High-temperature superconductors
2011This chapter is dedicated to the study of the superconductor–insulator transition in high temperature superconductors. We saw, in Sect.1.3.3, that metal superconductors were not so interesting from the point of view of critical phenomena. This is because their coherence length at T=0 is of the order of a micron, so the critical region is around 10−14K,
Annick Lesne, Michel Laguës
openaire +2 more sources
High Temperature Superconductors
2023In this article, we describe the phenomenology of the superconducting state in condensed matter. We start introducing the main properties and experimental signatures of conventional superconductivity in elemental metals and metallic alloys. Next, we focus on unconventional high temperature superconductivity in copper oxides and on the highly complex ...
Pietro Carretta, Giacomo Prando
openaire +2 more sources
High-Temperature Superconductors
Journal of Applied Physics, 1968Superconductors with the highest known transition temperatures to date occur in β-tungsten phases which are rich in Nb3Al. It has been found possible to raise the temperature of Nb3Al (Tc=18.5°K) to above 20°K by replacing some of the Al with Ge.1 The low values found for the electronic-heat-capacity co-efficient, and the almost temperature-independent
openaire +1 more source
High-Temperature Superconductors
2007Chapter 8 covers the various properties of high-temperature superconductors. These superconductors show significant anisotropy due to the two-dimensional crystal structure composed of superconducting CuO2 layers and insulating block layers. This makes the states of flux lines extremely complicated.
Sean E. Barrett, Charles P. Slichter
openaire +2 more sources
High-temperature superconductors
1993Abstract Since, as in other superconductors, the current carriers are bosons, in the case of the p-type materials paired holes, to understand many of their properties we need to consider the behaviour of bosons in a non-crystalline environment.
openaire +2 more sources
High-temperature superconductors
2006The discovery by J. G. Bednorz and K. A. Muller in 1986 that the superconducting state can exist in oxides at temperatures above 30 K stimulated research in the field of superconductivity and opened a new field of research. Within a few years a large number of cuprate superconductors with transition temperatures well above the boiling point of liquid ...
openaire +2 more sources
QUASIPARTICLES IN HIGH-TEMPERATURE SUPERCONDUCTORS
International Journal of Modern Physics B, 2003We study the quantum criticality effects induced by a singular charge vertex on the quasiparticle spectral function of an extended single-band Hubbard model. It is shown that the spectral intensity computed in a strong-coupling approach, reproduces the Momentum Distribution Curve (MDC) and the Energy Distribution Curve (EDC) of ARPES experiments on Bi
CITRO, Roberta +2 more
openaire +1 more source
High Temperature Superconductors
2016Abstract This chapter begins by describing the discovery of cuprate superconductors. In 1986 Bednorz and Müller discovered a material with a composition La2−x3+Bax+2Cu+2O4 (referred to as 214 for short) and a transition temperature of approximately 35 K.
openaire +1 more source
Chemistry of High-Temperature Superconductors
Science, 1988Spectacular advances in superconductors have taken place in the past two years. The upper temperature for superconductivity has risen from 23 K to 122 K, and there is reason to believe that the ascent is still ongoing. The materials causing this excitement are oxides.
openaire +2 more sources