Mixed state properties of superconducting MgB2 single crystals

M. Zehetmayer; M. Eisterer; H. W. Weber; J. Jun; S. M. Kazakov; J. Karpinski; A. Wisniewski

doi:10.1103/PhysRevB.66.052505

Mixed state properties of superconducting MgB2 single crystals

Superconductivity 2009-11-07 v1

Authors: M. Zehetmayer , M. Eisterer , H. W. Weber , J. Jun , S. M. Kazakov , J. Karpinski , A. Wisniewski

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report on measurements of the magnetic moment in superconducting MgB2 single crystals. We find \mu_0H_{c2}^c(0) = 3.2 T, \mu_0H_{c2}^{ab}(0) = 14.5 T, \gamma = 4.6, \mu_0H_c(0) = 0.28 T, and \kappa(T_c) = 4.7. The standard Ginzburg-Landau and London model relations lead to a consistent data set and indicate that MgB2 is a clean limit superconductor of intermediate coupling strength with very pronounced anisotropy effects.

Keywords

superconductivity MgB2 critical fields Ginzburg-Landau theory anisotropy

Cite

@article{arxiv.cond-mat/0204199,
  title  = {Mixed state properties of superconducting MgB2 single crystals},
  author = {M. Zehetmayer and M. Eisterer and H. W. Weber and J. Jun and S. M. Kazakov and J. Karpinski and A. Wisniewski},
  journal= {arXiv preprint arXiv:cond-mat/0204199},
  year   = {2009}
}

Mixed state properties of superconducting MgB2 single crystals

Abstract

Keywords

Cite

Related papers