Magnetic ordering in the pyrochlore Ho2CrSbO7 determined from neutron diffraction, and the magnetic properties of other RE2CrSbO7 phases (RE=Y, Tb, Dy, Er)

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

Abstract

The magnetic structure of the pyrochlore Ho2CrSbO7, which orders magnetically below 13 K, has been studied using neutron powder diffraction. Ho2CrSbO7 is found to form an “ordered spin-ice structure” where the magnetic moments are constrained along the 111 axes, but with a ferromagnetic moment in one direction. The Cr3+ ions order ferromagnetically and this is thought to lift the degeneracy of the x, y and z directions in the cubic structure causing the ferromagnetic component from the Ho3+ ions to align. The pyrochlores RE2CrSbO7 where RE=Y, Tb, Dy and Er have also been prepared and studied using SQUID magnetometry.

Details

Original languageEnglish
Pages (from-to)171-175
JournalJournal of Solid State Chemistry
Volume215
Early online date8 Apr 2014
Publication statusPublished - 1 Jul 2014

Keywords

  • Pyrochlore, Neutron diffraction, Magnetic structure, Spin-ice, Holmium