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María Jesús Martínez-Lope

Researcher at Spanish National Research Council

Publications -  234
Citations -  6772

María Jesús Martínez-Lope is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Neutron diffraction & Crystal structure. The author has an hindex of 40, co-authored 234 publications receiving 6164 citations. Previous affiliations of María Jesús Martínez-Lope include Complutense University of Madrid & University of Edinburgh.

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Journal ArticleDOI

Evolution of the Jahn-Teller distortion of MnO6 octahedra in RMnO3 perovskites (R = Pr, Nd, Dy, Tb, Ho, Er, Y): a neutron diffraction study.

José Antonio Alonso, +3 more
- 11 Feb 2000 - 
TL;DR: All of the perovskites show a distortion of the MnO6 octahedra due to the orbital ordering characteristic of the Jahn-Teller effect of Mn3+ cations, and the stability of the crystal structure is also discussed in light of bond-valence arguments.
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Charge Disproportionation in R NiO 3 Perovskites: Simultaneous Metal-Insulator and Structural Transition in YNiO 3

J. A. Alonso, +5 more
- 10 May 1999 - 
TL;DR: The first observation of changes in the crystal symmetry at the metal-insulator transition in perovskites was made in this article, where the authors reported the presence of two alternating NiO octahedra with expanded (Ni1) and contracted (Ni2) Ni-O bonds and a magnetic structure.
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Magnetic structure of hexagonal R MnO 3 ( R = Y , Sc ) : Thermal evolution from neutron powder diffraction data

Ángel Muñoz, +5 more
- 01 Oct 2000 - 
TL;DR: In this article, the magnetic structures of the hexagonal oxides of the space group (P6}-3cm) have been studied by neutron-diffraction experiments on powder samples, and it has been complemented with magnetic susceptibility and specific heat measurements.
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Finding universal correlations between cationic disorder and low field magnetoresistance in FeMo double perovskite series.

Mar García-Hernández, +4 more
- 12 Mar 2001 - 
TL;DR: The presence of a moderate level of antisite disorder is at the very root of low field magnetoresistance although effects such as disorder distribution, connectivity, or morphology add their contribution.
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Charge ordering as alternative to jahn-teller distortion

Igor Mazin, +9 more
- 26 Apr 2007 - 
TL;DR: In this paper, the Mott transition in orbitally degenerate systems can be lifted via a novel intermediate phase with a charge (rather than orbital) ordering, which can be viewed as an alternative to a Jahn-Teller distortion.