Oxygen Isotope Exponent as a Function of the Numbers of CuO2 Layers in Optimally Doped Superconductors Bi2Sr2Ca n-1Cu n O2n+4+δ (n=1, 2, 3)

被引：2

作者：

Askerzade, I. N. ^{[1
,2
,3
]}

Askerbeyli, R. T. Tagiyeva ^{[4
]}

机构：

[1] Ankara Univ, Dept Comp Engn, TR-06100 Ankara, Turkey

[2] Ankara Univ, Ctr Excellence Superconduct Res, TR-06100 Ankara, Turkey

[3] Azerbaijan Natl Acad Sci, Inst Phys, H Cavid 33, AZ-1143 Baku, Azerbaijan

[4] Karabuk Univ, Dept Business Adm, Demircelik Campus, TR-05780 Karabuk, Turkey

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2018年 / 31卷 / 04期

关键词：

Cuprate superconductors; Isotope effect; Electron-phonon coupling; Coulomb repulsion; CRITICAL-TEMPERATURE; TRANSITION-TEMPERATURE; COULOMB REPULSION;

D O I：

10.1007/s10948-017-4303-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, we carried out an analysis of the oxygen isotope exponent in optimally doped Bi2Sr2Ca (n-1) Cu (n) O2n+4 + delta ( n = 1,2,3). The expression in the strong electron-phonon coupling approach for the isotope exponent taking into account numbers of CuO2 layers in the unit cell was obtained. It is shown that increasing numbers of CuO2 layers lead to the decreasing of the isotope exponent, which is in agreement with available experimental data.

引用

页码：1043 / 1046

页数：4

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