Temperature dependence of the superconductivity-induced collective mode in the c-axis infrared spectra of bilayer cuprate superconductors

被引：0

作者：

Munzar, D. ^{[1
]}

Chaloupka, J. ^{[1
]}

Bernhard, C. ^{[2
,3
]}

Dubroka, A. ^{[2
,3
]}

Vasatko, J. ^{[1
]}

机构：

[1] Masaryk Univ, Fac Sci, Dept Condensed Matter Phys, CS-61137 Brno, Czech Republic

[2] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[3] Fribourg Ctr Nanomat, CH-1700 Fribourg, Switzerland

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷

关键词：

Cuprate superconductors; Infrared response; Collective modes; ANOMALIES; YBA2CU3O7-DELTA; CONDUCTIVITY;

D O I：

10.1016/j.physc.2009.10.094

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The low-temperature spectra of the c-axis infrared conductivity of bilayer high-T(c) cuprate superconductors (HTCS) exhibit two superconductivity-induced modes [Li Yu et al., Phys. Rev. Lett. 100 (2008) 177004: and references therein]. Both can be understood in terms of a microscopic theory developed recently [J. Chaloupka, C. Bernhard, D. Munzar, Phys. Rev. B 79 (2009) 184513]. Here we summarize the elements of the theory and report on the temperature dependence (TD) of the low-energy mode and of the total optical spectral weight (SW). The calculated TO of the mode is consistent with experiment but the trends of the SW are not. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：S75 / S77

页数：3

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