Enhancement of superconductivity of Sr2RuO4 to 3 K by embedded metallic microdomains

被引：154

作者：

Maeno, Y ^{[1
]}

Ando, T ^{[1
]}

Mori, Y ^{[1
]}

Ohmichi, E ^{[1
]}

Ikeda, S ^{[1
]}

NishiZaki, S ^{[1
]}

Nakatsuji, S ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.81.3765

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have found that the quasi-two-dimensional superconductor Sr2RUO4 With the intrinsic transition temperature T-c = 1.5 K exhibits a remarkable enhancement in T-c up to 3 K, if lamellar microdomains of ruthenium metal are embedded. Measurements of the anisotropy in the upper critical fields indicate that the 3-K superconductivity is sustained essentially in the layered structure of Sr2RUO4 We suggest that the enhanced interlayer coherence provided via metallic Ru plays a key role in the doubling of T-c. [S0031-9007(98)07463-8].

引用

页码：3765 / 3768

页数：4

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