Tunneling spectroscopy on an electron-doped Pr1-xLaCe xCuO4 with x 0.11

N. Miyakawa, M. Minematsu, K. Ogata, M. Fujita, K. Yamada

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We present point contact tunneling conductances measured on single crystals of an electron-doped cuprate, Pr0.89LaCe0.11CuO 4 (PLCCO) with Tc∼26K, which is nearly optimally-doped regime. The tunneling conductances on PLCCO measured at 4.2K exhibit reproducible superconducting gap peaks at ∼6.09 0.47mV on the V-shaped background conductance, where the subgap-shape is cusplike, and the model with the nonmonotonic d-wave energy gap is in good agreement with the experimental tunneling conductance for PLCCO. Furthermore we observed a fine structure beyond the gap peak, which would reflect a bosonic mode for pairing, such like phonon for conventional superconductors.

Original languageEnglish
Article number052163
JournalJournal of Physics: Conference Series
Volume150
Issue number5
DOIs
Publication statusPublished - 2009 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Tunneling spectroscopy on an electron-doped Pr<sub>1-x</sub>LaCe <sub>x</sub>CuO<sub>4</sub> with x 0.11'. Together they form a unique fingerprint.

Cite this