Phase diagram of the NdFe1-xRhxAsO superconductor

被引：2

作者：

Shi, H. Y. ^{[1
]}

Wang, X. L. ^{[1
]}

Xia, T. -L. ^{[1
]}

Zhang, Q. M. ^{[1
]}

Wang, X. Q. ^{[1
]}

Zhao, T. -S. ^{[1
]}

机构：

[1] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2010年 / 4卷 / 3-4期

关键词：

pnictides; Fe-based; superconductivity; phase diagram; SPIN;

D O I：

10.1002/pssr.201004008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polycrystalline samples with a nominal composition of NdFe1-xRhxAsO (0 <= x <= 0.25) were synthesized using a solid state reaction method. Bulk superconductivity with a maximum T-C = 13 K is observed in the x = 0.1 sample. A temperature composition phase diagram is established for the NdFe1-xRhxAsO system based on the electrical resistivity and magnetization measurements. A first-order-like transition from an antiferromagnetic state to the superconducting state at a critical Rh-doping point x(C) approximate to 0.045 is observed in the present phase diagram. The value for the upper critical field mu H-0(c2)(0) is estimated to be about 26 T for the x = 0.10 sample by using the Werthamer-Helfand-Hohenberg theory. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：67 / 69

页数：3

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