Possible charge order structure of stoichiometric YbFe2O4. (19th May 2017)

• Record Type: Journal Article
• Authors: Fujiwara, Kosuke; Karasudani, Tomoyuki; Fukunaga, Mamoru; Kobayashi, Hiroyuki; Kano, Jun; Janolin, Pierre-Eymeric; Kiat, Jean-Michel; Nogami, Yoshio; Kondo, Ryusuke; Ikeda, Naoshi
• Is Part Of: Ferroelectrics. Volume 512(2017)
• Page Start: 85
• Page End: 91
• Publication Date: 2017-05-19
• Subjects: Electric ferroelectricity -- charge order -- YbFe2O4; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2017.1349945
• Languages: English
• ISSNs: 0015-0193

Abstract

ABSTRACT: We report a possible charge ordering model of triangular mixed valence material YbFe2 O4 . It was found that a crystal synthesized with high stoichiometry on iron vacancy shows new and simple extinction rule in the superlattice reflections. The Laue class of the diffraction signal is expressed as 2/m. With the consideration of the charge neutrality and the superlattice signal of (1/3 1/3 0), we derived 5 possible charge ordering models of this material.