About

The Instituto de Ciencia de Materiales de Madrid (ICMM) is an institute of the Consejo Superior de Investigaciones Cientificas (CSIC) (Spanish National Research Council) founded in December 1986, that belongs to the Area of Science and Technology of Materials, one of the eight Areas in which the CSIC divides its research activities.

 

Our mission is to create new fundamental and applied knowledge in materials of high technological impact, their processing and their transfer to the productive sectors at local, national and European scales (the true value of materials is in their use), the training of new professionals, and the dissemination of the scientific knowledge.

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Forthcoming Events

APR24/12:00

¿Contar la Ciencia a Profanos?
Por qué, Cómo y un Ejemplo.

Dr. Joaquín Sevilla Moróder   read more

APR27/12:00

THEORETICAL SIMULATIONS OF CARBON NANOSTRUCTURES: ENDOHEDRAL AND EXOHEDRAL FULLERENES
Manuel Alcamí  read more

MAY04/12:00

Fermi velocity renormalization of graphene (RELOADED)
Tobias Stauber  read more

News

Premio Nacional de la Academia de Ciencias de Cuba 2016. Colaboración del ICMM, Eduardo Ruiz-Hitzky y Pilar Aranda

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Jose S. Moya and José F. Bartolomé, ICMM, develops damage-tolerant, fatigue-resistant, and biocompatible ceramic–metal composite

The American Ceramic Society Read more

 

LaMn3Ni2Mn2O12: An A- and B-Site Ordered Quadruple Perovskite with A-Site Tuning Orthogonal Spin Ordering

Yun-Yu Yin, Min Liu, Jian-Hong Dai, Xiao Wang, Long Zhou, Huibo Cao, Clarina dela Cruz, Chien-Te Chen, Yuanji Xu, Xi Shen, Richeng Yu, José Antonio Alonso, Angel Muñoz, Yi-Feng Yang, Changqing Jin†, Zhiwei Hu, and Youwen Long

A new oxide, LaMn3Ni2Mn2O12, was prepared by high-pressure and high-temperature synthesis methods. The compound crystallizes in an AA?3B2B?2O12-type A?-site and B-site ordered quadruple perovskite structure. The charge combination is confirmed to be LaMn3+3Ni2+2Mn4+2O12, where La and Mn3+ are 1:3 ordered at the A and A? sites and the Ni2+ and Mn4+ are also distributed at the B and B? sites in an orderly fashion in a rocksalt-type manner, respectively. A G-type antiferromagnetic ordering originating from the A?-site Mn3+ sublattice is found to occur at TN ? 46 K. Subsequently, the spin coupling between the B-site Ni2+ and B?-site Mn4+ sublattices leads to an orthogonally ordered spin alignment with a net ferromagnetic component near TC ? 34 K. First-principles calculations demonstrate that the A?-site Mn3+ spins play a crucial role in determining the spin structure of the B and B? sites. This LaMn3Ni2Mn2O12 provides a rare example that shows orthogonal spin ordering in the B and B? sites assisted by ordered A-site magnetic ions in perovskite systems.

Chem. Mater., 2016

Crystal structure of both A- and B-site ordered AA'3B2B'2O12-type quadruple perovskite with Pn3 symmetry. Atomic positions: A 2a (0.25, 0.25, 0.25), A? 6d (0.25, 0.75, 0.75), B 4b (0, 0, 0), B? 4c (0.5, 0.5, 0.5), and O 24h (x, y, z).

Publications Highlights

ICMM-2017 - Sor Juana Inés de la Cruz, 3, Cantoblanco, 28049 Madrid, Spain. Tel: +34 91 334 9000. Fax: +34 91 372 0623. info@icmm.csic.es