arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.0649cond-mat.supr-concond-mat.mtrl-sci
收藏

铜酸盐中CuO2晶面数对Tc振荡的影响

Oscillation of Tc depending on the number of CuO2 planes in the cuprates

A. Messad

摘要:

利用BCS给出的Tc公式,结合剪切模量随平面数的变化,我们可以证明Tc随铜酸盐平面数的变化而振荡。在这些振荡的Tc的最大值出现在三个平面,而不管铜酸盐家庭。与实验数据的比较表明,良好的协议,并表明,电子-声子耦合占主导地位的这些材料的超导电性。该模型预测,这种振荡也可以发生在许多其他物理量,取决于Tc。新的Tc公式显示了室温超导体的有趣前景。

英文摘要:

Using the Tc formula given by BCS, together with a shear modulus varying with the numbering of planes, we can demonstrate that Tc oscillates depending on the number of the cuprate planes. The maximum of Tc in these oscillations appears for three planes irrespective of the cuprate family. Comparison with experimental data shows good agreement and suggests that the electron-phonon coupling predominate in the superconductivity of these materials. This model predicts that such oscillations can also occur in many others physical quantities that depend on Tc. The new Tc formula shows interesting prospects towards room temperature superconductors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑