Anomalous exchange mechanism in Gd monopnictides

T. Kasuya, D. X. Li

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Nearest and next nearest neighbor exchange constants I1 and I2 were obtained for Gd monopnictides GdXp. Even though relative energy levels are different substantially, lattice constant dependences, as well as the absolute values, are nearly equal to those in Eu chalcogenides EuXC. In particular, strong ferromagnetic I1 in GdN similar to EuO was explained by the process involving 4f8 configuration. On the other hand, contrary to electron doped EuXC, no ferromagnetic effect is observed in GdXp due to semimetallic carriers. This is also seen as a weak spin disorder scattering. This anomalous behavior was explained as cancellation of intra and intersite d-f scatterings characteristic to GdXp.

Original languageEnglish
Pages (from-to)472-474
Number of pages3
JournalPhysica B: Condensed Matter
Volume230-232
DOIs
Publication statusPublished - 1997 Feb

Keywords

  • Ferromagnetic interaction
  • Gd monopnictides
  • Mixing mechanism
  • d-f exchange interaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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