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

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

doi:10.1080/14786435.2012.750769

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

Superconductivity 2015-06-04 v2

Authors: 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 $\alpha_B$ =0.10 $\pm$ 0.02 and $\alpha_B$ =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 $_c$ .

Keywords

boron isotope effect superconductor ErNi2B2C local magnetic moment pair-breaking

Cite

@article{arxiv.1203.4131,
  title  = {Boron isotope effect in single crystals of ErNi$_2$B$_2$C superconductor},
  author = {Halyna Hodovanets and Sheng Ran and Paul C. Canfield and Sergey L. Bud'ko},
  journal= {arXiv preprint arXiv:1203.4131},
  year   = {2015}
}

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7 pages, 3 figures

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

Abstract

Keywords

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