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

 

Resonant electron tunnelling assisted by charged domain walls in multiferroic tunnel junctions

G. Sanchez-Santolino, J. Tornos, D. Hernandez-Martin, J. I. Beltran, C. Munuera, M. Cabero, A. Perez-Muñoz, J. Ricote, F. Mompean, M.Garcia-Hernandez, Z. Sefrioui, C. Leon, S. J. Pennycook, M.Carmen Muñoz, M. Varela and J. Santamaria

The peculiar features of domain walls observed in ferroelectrics make them promising active elements for next-generation non-volatile memories, logic gates and energy-harvesting devices. Although extensive research activity has been devoted recently to making full use of this technological potential, concrete realizations of working nanodevices exploiting these functional properties are yet to be demonstrated. Here, we fabricate a multiferroic tunnel junction based on ferromagnetic La0.7Sr0.3MnO3 electrodes separated by an ultrathin ferroelectric BaTiO3 tunnel barrier, where a head-to-head domain wall is constrained. An electron gas stabilized by oxygen vacancies is confined within the domain wall, displaying discrete quantum-well energy levels. These states assist resonant electron tunnelling processes across the barrier, leading to strong quantum oscillations of the electrical conductance.

Nature Nanotechnology 2017

a, Sketch of the sample structure for perpendicular transport measurements. b, Tunnelling current as a function of applied bias measured at 14 K for parallel (P, blue curve) and antiparallel (AP, red curve) alignment of the magnetic moments of the electrodes. c, Junction resistance versus applied magnetic field sweeping from 4,000 Oe to 4,000 Oe (blue) and from 4,000 Oe to 4,000Oe (red) at 14 K, measured at 800 mV. d–h, Differential conductance obtained as the numerical derivative of the current versus voltage for parallel (blue curve) and antiparallel (red curve) magnetic states at 14 K (d), 40 K (e), 60 K (f), 80 K (g) and 100 K (h).

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