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arXiv · 1203.4131

Boron isotope effect in single crystals of ErNi$_2$B$_2$C superconductor

Halyna Hodovanets·Sheng Ran·Paul C. Canfield·Sergey L. Bud'ko
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Abstract

The influence of local moment magnetism on the boron isotope effect of T$_c$ was studied on single crystals of ErNi$_2$B$_2$C. Values of the partial isotope effect exponent of $α_B$=0.10$\pm$0.02 and $α_B$=0.10$\pm$0.04 were obtained based on two different criteria applied to extract $T_c$. No significant change in the partial isotope effect exponent compared to the ones obtained for LuNi$_2$B$_2$C was observed. Based on this result we conclude that pair-breaking due to the Er local magnetic moment appears to have no detectable influence on boron isotope effect of T$_c$.

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Halyna Hodovanets, Sheng Ran, Paul C. Canfield, Sergey L. Bud'ko. 2012-11-11. Boron isotope effect in single crystals of ErNi$_2$B$_2$C superconductor. https://doi.org/10.1080/14786435.2012.750769

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