Temperature dependences of the upper critical field and the Ginzburg-Landau parameter of Li2Pd3B from magnetization measurements

Details Temperature dependences of the upper critical field and the Ginzburg-Landau parameter of Li2Pd3B from magnetization measurements Temperature dependences of the upper critical field and the Ginzburg-Landau parameter of Li2Pd3B from magnetization measurements

2006-05-12

arxiv.org/abs/cond-mat/0605346v3

Physics

Condensed Matter

Superconductivity

5 pages, 6 figures. Minor changes have been made

Scientific paper

We present temperature dependences of the upper critical magnetic field and the Ginzburg-Landau parameter for a ternary boride superconductor Li_2Pd_3B obtained from magnetization measurements. A specially developed scaling approach was used for the data analysis. The resulting H_c2(T) curve turns out to be surprisingly close to predictions of the BCS theory. The magnetic field penetration depth, evaluated in this work, is in excellent agreement with recent muon-spin-rotation experiments. We consider this agreement as an important proof of the validity of our approach.

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