Accession Number:

ADA123130

Title:

Preparation and Properties of the Systems Fe(2-x)Cr(x)WO6, Fe(2-x)Rh(x)WO6, and Cr(2-x)Rh(x)WO6.

Descriptive Note:

Technical rept.,

Corporate Author:

BROWN UNIV PROVIDENCE RI DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1983-01-03

Pagination or Media Count:

28.0

Abstract:

Solid solutions of the end members Fe2WO6, Cr2WO6, and Rh2WO6 have been prepared and their crystallographic and magnetic properties have been studied. All solid solutions crystallize with the trirutile structure, and their magnetic behavior is characterized by the existence of antiferromagnetic interactions and effective molar Curie constants corresponding to those expected from contributions of the spin-only moments of high-spin F33, Cr3, and diamagnetic low-spin Rh3 ions. Fe2WO6 crystallizes with the tri-alpha-PbO2 structure and is antiferromagnetic and conducting. The random rutile Rh2WO6 is conducting, and the difference between its magnetic and electric properties and those of the inverse trirutile Cr2WO6 are discussed in terms of possible interactions between Cr33D or Rh34d orbitals and W6 5d orbitals.

Subject Categories:

  • Physical Chemistry
  • Crystallography
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE