Influence of the interplay between helicoidal magnetic ordering and superconductivity on the differential conductance in HoNi(2)B(2)C/Ag junctions

Askerzade İ.

PRAMANA-JOURNAL OF PHYSICS, vol.60, no.6, pp.1287-1291, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 60 Issue: 6
  • Publication Date: 2003
  • Doi Number: 10.1007/bf02704294
  • Journal Name: PRAMANA-JOURNAL OF PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1287-1291
  • Keywords: Andrew reflection, differential conductivity, NS junctions, helicoidal magnetic ordering, BOROCARBIDES, TRANSITION, STATES
  • Ankara University Affiliated: No

Abstract

The point contact spectra of magnetic superconductor HoNi(2)B(2)C/Ag-based junctions is analysed in the framework of Blonder-Tinkham-Klapwijk (BTK) theory. The anomalous behavior in the dI/dV curves above the Neel temperature (T(N) similar to 5 K) is attempted to be explained by the partial suppression of superconducting gap parameter of the prevailing helical incommensurate structure.