The crystal structures of RbMnP2O7

Authors

  • R. Lavryk ,

Abstract

         The crystal and magnetic structures of RbMnP2O7have been determined. The crystal structure (a=7.3672(2), b=9.6782(2), c=8.6467(2)Å, β=105.488(1)0 space group P21/c, was determined from X-ray and neutron powder diffraction, and was found to be isostructural with RbFeP2O7. Magnetic susceptibility measurements showed that RbMnP2O7 behaves as a Curie-Weiss paramagnet at high temperatures and orders antiferromagnetically bellow a Neel temperature of 20K. From low temperature neutron diffraction, the magnetic structure was found to be commensurate with the nuclear cell, with a magnetic symmetry group P21¯/c.

Interestingly, this magnetic structure was found to consist of both antiferromagnetic and ferromagnetic exchange interactions mediated through Mn-O-Mn-O pathways.

Downloads

Issue

Vol. 7 No. 1-2 (2015): (англ)

Section

Статті

License

Relationship between right holders and users shall be governed by the terms of the license Creative Commons  Attribution – non-commercial – Distribution On Same Conditions 4.0 international (CC BY-NC-SA 4.0):https://creativecommons.org/licenses/by-nc-sa/4.0/deed.uk

Authors who publish with this journal agree to the following terms:

  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).