Tunneling spectra of Cu1Ba2Ca3Cu4Oy (cu-1234)

J. W. Kane, K. W. Ng, K. Tokiwa, A. Iyo, H. Ihara, H. L. Luo

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We have measured and studied the first tunneling spectra of the recently discovered [1] high Tc material 1Ba2Ca3Cu4Oy (Cu-1234). This material has four Cu-O2 layers and a Tc of 116 K. The tunneling spectra show sharp peaks indicative of the superconducting gap at 27 meV to 30 meV, giving a value of 2Δ/kTc of 5.4 to 6.0. We will discuss and compare features of the tunneling spectra taken from Cu-1234 with those taken from the n=2 member of the Bi-based cupratcs (Bi-2212), which has a similar crystal structure.

Original languageEnglish
Pages (from-to)1343-1344
Number of pages2
JournalCzechoslovak Journal of Physics
Issue numberSUPPL. 3
StatePublished - 1996

ASJC Scopus subject areas

  • General Physics and Astronomy


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