Phase diagram of the NdFe1-xRhxAsO superconductor

Autor:	Shi, H. Y., Wang, X. L., Xia, T. -L., Zhang, Q. M., Wang, X. Q., Zhao, T. -S.
Rok vydání:	2010
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Materials Science
Zdroj:	Phys. Status Solidi RRL 4, No.3-4, 67-69 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1002/pssr.201004008
Popis:	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 Tc = 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 xc = 0.045 is observed in the present phase diagram. The value for the upper critical field Hc2(0) is estimated to be about 26 T for the x = 0.10 sample by using the WHH theory. Comment: 6 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1002.0877 Zobrazit plný text záznamu View this record from Arxiv