Hc2 of MgCNi3 determined from the specific heat and resistivity measurements

Jiunn-Yuan Lin*, P. H. Lin, P. L. Ho, H. L. Huang, Y. L. Zhang, R. C. Yu, C. Q. Jin, H. D. Yang

*Corresponding author for this work

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Abstract

Hc2 of MgCNi3 has been determined from the specific heat C and resistivity ρ measurements in the same sample. The results from ρ are nearly identical with those determined from the anomaly in C. Furthermore, utilizing the relation γ (H) ∝ H and the value of dγ/dH, the obtained value of Hc2 is the same as that by the WHH model, if the spin paramagnetic effect and the spin-orbit interaction are taken into account. The results of this comparison have strong implications on the order parameter of MgCNi3.

Original languageEnglish
Pages (from-to)485-488
Number of pages4
JournalJournal of Superconductivity and Novel Magnetism
Volume15
Issue number5
DOIs
StatePublished - 1 Dec 2002

Keywords

  • H
  • MgCNi
  • Mixed state
  • Order parameter
  • Specific heat

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    Lin, J-Y., Lin, P. H., Ho, P. L., Huang, H. L., Zhang, Y. L., Yu, R. C., Jin, C. Q., & Yang, H. D. (2002). Hc2 of MgCNi3 determined from the specific heat and resistivity measurements. Journal of Superconductivity and Novel Magnetism, 15(5), 485-488. https://doi.org/10.1023/A:1021023725468