Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70957
標題: Coexistence of magnetism and superconductivity in the hole doped FeAs-based superconducting compound
作者: Lu, T.P.
Wu, C.C.
Chou, W.H.
Lan, M.D.
關鍵字: Superconductivity
Hole doped superconductor
FeAs
Paramagnetic
期刊/報告no:: Physica C-Superconductivity and Its Applications, Volume 470, Issue 5-6, Page(s) 357-359.
摘要: The magnetic and superconducting properties of the Sm-doped FeAs-based superconducting compound were investigated under wide ranges of temperature and magnetic field. After the systematical magnetic ion substitution, the superconducting transition temperature decreases with increasing magnetic moment. The hysteresis loop of the La(0.87-x)Sm(x)Sr(0.13)FeAsO sample shows a superconducting hysteresis and a paramagnetic background signal. The paramagnetic signal is mainly attributed to the Sm moments. The experiment demonstrates that the coexistence of magnetism and superconductivity in the hole doped FeAs-based superconducting compounds is possible. Unlike the electron doped FeAs-based superconducting compounds SmFeAsOF, the hole doped superconductivity is degraded by the substitution of La by Sm. The hole-doped and electron-doped sides are not symmetric. (C) 2010 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/70957
ISSN: 0921-4534
文章連結: http://dx.doi.org/10.1016/j.physc.2010.02.004
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