IS ND2-XCEXCUO4 A HIGH-TEMPERATURE SUPERCONDUCTOR

被引：106

作者：

STADLOBER, B ^{[1
]}

KRUG, G ^{[1
]}

NEMETSCHEK, R ^{[1
]}

HACKL, R ^{[1
]}

COBB, JL ^{[1
]}

MARKERT, JT ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT PHYS,AUSTIN,TX 78712

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.74.4911

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Single-crystalline Nd1.84Ce0.16CuO4 with a superconducting transition temperature of 19.3 K has been studied above and below Tc using polarized Raman scattering. Electronic, crystal-field, and vibrational excitations have been detected. In the superconducting state, the formation of an almost isotropic gap 2Δ is observed which varies between 4.1 and 4.9 in units of kTc. This indicates that Nd1.84Ce0.16CuO4 is different from the other cuprate systems. © 1995 The American Physical Society.

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页码：4911 / 4914

页数：4

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