Neutron Diffraction Study of the Magnetic and Structural Phase Transitions in BaFe2As2

Download
  1. (PDF, 608 KB)
  2. Get@NRC: Neutron Diffraction Study of the Magnetic and Structural Phase Transitions in BaFe2As2 (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titlePhysical review. B, Condensed matter and materials physics
Volume79
Pages184519-1184519-10; # of pages: 10
AbstractWe present the results of an investigation of both the magnetic and structural phase transitions in a high quality single crystalline sample of the undoped iron pnictide compound BaFe2As2. Both phase transitions are characterized via neutron diffraction measurements which reveal simultaneous, continuous magnetic and structural orderings with no evidence of hysteresis, consistent with a single second-order phase transition. The onset of long-range antiferromagnetic order can be described by a simple power-law dependenceT21−T TN 2 with=0.1030.018; a value near the=0.125 expected for a two-dimensional Ising system. Biquadratic coupling between the structural and magnetic order parameters is also inferred along with evidence of threedimensional critical scattering in this system.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Canadian Neutron Beam Centre
Peer reviewedYes
NPARC number14791085
Export citationExport as RIS
Report a correctionReport a correction
Record identifier7313522f-14dd-4239-854d-ae2facf93b9c
Record created2011-02-15
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)