Journal ArticleDOI
Crystal symmetry of the low temperature phase of magnetite
M. Iizumi,Gen Shirane +1 more
TLDR
In this article, a neutron diffraction study of magnetite below the Verwey transition (123 K) reveals that the superlattice reflections are observed for (hhl), with l = integers + 1 2 but not for hl, which implies that only one of the doubly degenerate modes, proposed by Yamada, condenses at the transition.About:
This article is published in Solid State Communications.The article was published on 1975-08-15. It has received 65 citations till now. The article focuses on the topics: Charge ordering & Glide plane.read more
Citations
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First-principles calculations of the electronic structure and spectra of strongly correlated systems: the LDA+ U method
TL;DR: In this paper, a generalization of the Local Density Approximation (LDA) method for the systems with strong Coulomb correlations is presented which gives a correct description of the Mott insulators.
Journal ArticleDOI
The Verwey transition - a topical review
TL;DR: The story of the Verwey transition in magnetite over a period of about 90 years, from its discovery up to the present, can be subdivided into three eras as mentioned in this paper.
Journal Article
First-principles calculations of electronic structure and spectra of strongly correlated systems: the LDA+U method
TL;DR: In this paper, a generalization of the Local Density Approximation (LDA) method for the systems with strong Coulomb correlations is presented which gives a correct description of the Mott insulators.
Journal ArticleDOI
The Verwey transition: a new perspective
Joaquín García,Gloria Subías +1 more
TL;DR: In this article, the authors re-analyse the most relevant experiments used to study the Verwey transition from the point of view of their degree of agreement with the proposed Fe2+Fe3+ charge ordering model.
Journal ArticleDOI
Magnetic after-effects in Fe3O4and vacancy-doped magnetite
TL;DR: In this paper, the authors investigated the magnetic relaxation spectrum of stoichiometric and vacancy-doped magnetite in the temperature range between 4·2 and 130 K. The observed relaxation processes are classified as short and long-range rearrangements of Fe2+ and Fe3+ ionic states within domain walls.
References
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Journal ArticleDOI
Electronic conductivity and transition point of magnetite (“Fe3O4”)
E.J.W. Verwey,P.W. Haayman +1 more
TL;DR: In this article, an einigen gesinterten Stabchen aus Magnetit (Fe 3 O 4 ) wird festgestellt dass sich der elektrische Widerstand bei Uberschreitung eines Umwandlungpunktes in der Umgebung von 100-200°K sprunghaft andert.
Journal ArticleDOI
Physical Properties and Cation Arrangement of Oxides with Spinel Structures II. Electronic Conductivity
TL;DR: In this paper, the relationship between the electronic conductivity of certain spinels and the arrangement of the cations in the crystal structure was studied, and it was shown that the activation energy of the spinels is lowest for those cases in which the electrons can travel along the Fe of the 16-fold position.
Journal ArticleDOI
Neutron diffraction investigation of the 119 k transition in magnetite
TL;DR: In this article, a least squares fit was made to the intensities of the cubic phase at 296\ifmmode^\circ\else\text degree\fi{}K; a value of $u=0.0002$ was obtained for the oxygen parameter in the spinel structure.
Journal ArticleDOI
Magnetic and electric properties of magnetite at low temperatures
TL;DR: The low-temperature transition in magnetite is due to the ordering of the ferrous and ferric ions in the octahedral interstices of the spinel lattice as mentioned in this paper.
Journal ArticleDOI
Neutron Scattering from Magnetite below 119°K
TL;DR: In this article, it was shown that the low-temperature structure of magnetite gives rise to weak extra neutron diffraction lines that can be indexed as (h, k, l±½) in cubic indices.
Related Papers (5)
Electronic conductivity and transition point of magnetite (“Fe3O4”)
E.J.W. Verwey,P.W. Haayman +1 more