Comment on "Long Range Ordering in Magnetite below the Verwey Transition"
Joaquin Garcia (1), Gloria Subias (1, 2), Javier Blasco (1) and, Maria Grazia Proietti (1) ((1) ICMA, CSIC (University of Zaragoza) Spain, (2), ESRF, Grenoble, France)
TL;DR
This paper critiques a recent study on magnetite's structure below the Verwey transition, arguing that the original interpretation of long-range charge ordering is unsupported by their crystallographic data.
Contribution
It provides a critical reanalysis of previous diffraction data, challenging claims of long-range charge order in magnetite below the Verwey transition.
Findings
Crystallographic data do not support long-range charge order
Original interpretation of the data is unsupported
Magnetite lacks atomic long-range charge ordering below TV
Abstract
In a recent letter, J. P. Wright et al [Phys. Rev. Lett. 87,266401 (2001) and cond-mat/0111119] have investigated the crystal structure of magnetite below the Verwey transition temperature (TV) by means of X-ray and neutron powder diffraction. We show that the interpretation given by J. P. Wright et al. is unsupported by their own crystallographic data which demonstrate, instead, the lack of atomic long-range CO in magnetite below the Verwey transition.
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Taxonomy
TopicsIron oxide chemistry and applications · Magnetic Properties and Synthesis of Ferrites · Bauxite Residue and Utilization