Jump to main content
Jump to site search

Issue 27, 2011
Previous Article Next Article

Structural phase transitions and magnetic order in SrTcO3

Author affiliations

Abstract

The structure of the perovskite SrTcO3 has been investigated using both synchrotron X-ray and neutron powder diffraction. At room temperature SrTcO3 is orthorhombic as a consequence of cooperative tilting of the corner sharing TcO6 octahedra. The tilts are sequentially removed as the sample is heated with the oxide displaying the sequence of structres PnmaImmaI4/mcmPm[3 with combining macron]m. Neutron powder diffraction data collected in the temperature range 4–1023 K indicate that SrTcO3 has G-type antiferromagnetic structure, in which each Tc moment is antiparallel to its six nearest neighbours, below ∼1000 K. The magnetic structure is collinear antiferromagnetic with the technetium moments parallel to c-axis and can be described by the propagation vector k = [0,0,0] and the basis vector (0,0,Az). The same magnetic structure is observed in each of the four crystal structures.

Graphical abstract: Structural phase transitions and magnetic order in SrTcO3

Back to tab navigation

Publication details

The article was received on 16 Mar 2011, accepted on 13 May 2011 and first published on 08 Jun 2011


Article type: Paper
DOI: 10.1039/C1DT10445D
Citation: Dalton Trans., 2011,40, 7228-7233
  •   Request permissions

    Structural phase transitions and magnetic order in SrTcO3

    G. J. Thorogood, M. Avdeev, M. L. Carter, B. J. Kennedy, J. Ting and K. S. Wallwork, Dalton Trans., 2011, 40, 7228
    DOI: 10.1039/C1DT10445D

Search articles by author

Spotlight

Advertisements