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BaFe9LiO15: A New Layered Antiferromagnetic Ferrite

DOI: 10.1021/ic302433a DOI Help

Authors: Tao Yang (University of Liverpool) , Aziz Daoud-aladine (ISIS Facility) , Michael Thomas (University of Liverpool) , John B. Claridge (University of Liverpool) , Matthew Rosseinsky (University of Liverpool)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Inorganic Chemistry , VOL 52 (9)

State: Published (Approved)
Published: April 2013

Abstract: The new Fe3+ oxide BaFe9LiO15 is isostructural with the magnetically frustrated material BaV10O15, adopting a structure based on the stacking of close-packed pure oxide and BaO7 layers. Neutron diffraction and Mössbauer spectroscopy shows that BaFe9LiO15 is long-range antiferromagnetically ordered with a Néel temperature of 460 K. The magnetic ordering of antiferromagnetically coupled ferromagnetic planes is stabilized by 90° and 180° superexchange interactions between the Fe3+ cations that supersede the frustrated in-plane direct exchange observed in t2g-only systems.

Subject Areas: Chemistry

Instruments: I11-High Resolution Powder Diffraction