Physics of Complex Materials Group

Complutense University of Madrid

ICMM-CSIC Associate Unit: Laboratory of heterostructures for Spintronics applications

Major research lines

Quantum matter. Correlated Oxides. nanoestructures and heterostructures, interface phenomena. Magnetism. Superconductivity.
Ion transport, oxygen vacancies. Dielectric Spectroscopy with emphasis on the study of magnetoelectric coupling.
Spintronics. Magnetic Tunnel Junctions based on Transition Metal Oxides. Domain Wall engineering: nanowires.

Recent news and updates

Apr 09, 2018   New Book

View on springer.com

Dynamics of Glassy, Crystalline and Liquid Ionic Conductors: Experiments, Theories, Simulations published by Springer-Nature in 2016.

Authors: Junko Habasaki, Carlos León & Kia Ngai.

Apr 09, 2018   Modified magnetic anisotropy at LaCoO3/La0.7Sr0.3MnO3 interfaces

View on aip.scitation.org

M. Cabero, K. Nagy, F. Gallego, A. Sander, M. Rio, F.A. Cuellar, J.Tornos, D. Hernandez-Martin, N.M. Nemes, F. Mompean, M. Garcia-Hernandez, A. Rivera-Calzada, Z. Sefrioui, N. Reyren, T. Feher, M. Varela, C. Leon y J. Santamaria. APL Materials 5, 096104 (2017). doi: 10.1063/1.5002090

Apr 09, 2018   Resonant electron tunnelling assisted by charged domain walls in multiferroic tunnel junctions

View on nature.com

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. C. Muñoz, M. Varela, J. Santamaria Nat Nano 12, 655 (2017). doi: 10.1038/nnano.2017.51

Feb 02, 2017   New publication in PNAS

In operando evidence of deoxygenation in ionic liquid gating of YBa2Cu3O7-X

Ana M. Perez-Muñoz, Pedro Schio, Roberta Poloni, Alejandro Fernandez-Martinez, Alberto Rivera-Calzada, Julio C. Cezar, Eduardo Salas-Colera, German R. Castro, Joseph Kinney, Carlos Leon, Jacobo Santamaria, Javier Garcia-Barriocanal, and Allen M. Goldman

Note

Research highlights

The group started in 1998. In the last 10 years we have put a continued effort on the physics of complex oxides interfaces. Materials include colossal magnetoresistance manganites, high Tc superconducting cuprates, Mott and band insulators, and solid electrolytes. Structures and devices are superlattices, magnetic tunnel junctions, and planar nanostructures for lateral transport fabricated by optical and e-beam lithography.

RESONANT ELECTRON TUNNELLING ASSISTED BY CHARGED DOMAIN WALLS IN MULTIFERROIC TUNNEL JUNCTIONS

Nat Nano 12, 655 (2017). doi: 10.1038/nnano.2017.51.

IN OPERANDO EVIDENCE OF DEOXYGENATION IN IONIC LIQUID GATING OF YBa2Cu3O7-x

Proc. Natl. Acad. Sci. USA 114, 215 (2017). doi: 10.1073/pnas.1613006114.

INSIGHT INTO SPIN TRANSPORT IN OXIDE HETEROSTRUCTURES FROM INTERFACE-RESOLVED MAGNETIC MAPPING

Nat. Commun. 6:6306 DOI: 10.1038/ncomms7306 (2015)

COMPETITION BETWEEN COVALENT BONDING AND CHARGE TRANSFER AT COMPLEX-OXIDE INTERFACES

Physical Review Letters 112, 196802 DOI: 10.1103/PhysRevLett.112.196802 (2014)

REVERSIBLE ELECTRIC-FIELD CONTROL OF MAGNETIZATION AT OXIDE INTERFACES

Nature Commun. 5:4215 DOI: 10.1038/ncomms5215 (2014)

ELECTRON DOPING BY CHARGE TRANSFER AT LAFEO 3/SM 2CUO 4 EPITAXIAL INTERFACES

Adv. Mat. 25, 1468 (2013)

EQUAL-SPIN ANDREEV REFLECTION AND LONG RANGE COHERENT TRANSPORT IN HIGH-TEMPERATURE SUPERCONDUCTOR/HALF-METALLIC FERROMAGNET JUNCTIONS

Nature Physics 8, 539 DOI:10.1038/nphys2318 (2012)

TAILORING INTERFACE STRUCTURE IN HIGHLY STRAINED YSZ/STO HETEROSTRUCTURES

Adv. Mat. 23, 5268 (2011)

INTERFACE RECONSTRUCTION AT LCMO/YBCO/LCMO HETEROSTRUCTURES

Phys. Rev. B 84, 060405 (R) (2011)

LOW DIMENSIONAL MAGNETISM DUE TO SPIN AND ORBITAL ELECTRONIC RECONSTRUCTION IN LAMNO 3/SRTIO 3 INTERFACES

Nature Comm. 1: 82, (2010)

SPIN TRANSPORT IN ALL-MANGANITE MAGNETIC TUNNEL JUNCTIONS

Advanced Materials 22, 5029 (2010)

ENHANCED IONIC CONDUCTIVITY AT YSZ/STO INTERFACES

Science 321, 676 (2008)