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


Orbital Selective Physics of Iron Superconductors emerging from strong- and weak-correlated approaches
Laura Fanfarillo  read more


Control of Hole Spin in Lateral Gated Quantum Dot Devices
Marek Korkusinski  read more


Nuestros ojos sufren el exceso de luz por el uso de nuevas tecnologías

Celia Sánchez Ramos  read more


Entrevista a Ramón Aguado, ICMM, en Materia.Ciencia "El Pais", sobre los materiales con los que se fabricarán los ordenadores del futuro.

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¿Qué sabemos de... los riegos de la Nanotecnología?. Entrevista a Pedro Serena, ICMM, y Marta Bermejo, CSIC, en Aragón Radio.

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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).

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