Physics of low-carrier system detected by neutron and X-ray scattering: Ce-monopnictides case

M. Kohgi, K. Iwasa, T. Osakabe

Research output: Contribution to journalConference articlepeer-review

25 Citations (Scopus)

Abstract

The origin of the unusual magnetic properties of Ce-monopnictide, CeX (X = P,As,Sb,Bi), whose carrier density is very low, is discussed on the basis of the physical picture obtained from recent neutron and X-ray scattering experiments. It is revealed that the unusual properties of the compounds originate from the appearance of Γ8-like Ce ions, the moment value of which is about 2 μB, among Ce ions with Γ7 crystal field ground state. The 2 μB Ce ions appear in the form of ferromagnetic sheets of (0 0 1) planes, which form stacking magnetic structures of various sequences with sandwiching Γ7 Ce planes depending on the carrier density. The formation of the ferromagnetic sheets of 2 μB Ce in the Γ7 Ce lattice is ascribed to the combined effects of strong p-f mixing and carrier localization due to the low-carrier density.

Original languageEnglish
Pages (from-to)417-422
Number of pages6
JournalPhysica B: Condensed Matter
Volume281-282
DOIs
Publication statusPublished - 2000 Jun 1
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
Duration: 1999 Aug 241999 Aug 28

ASJC Scopus subject areas

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

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