Alicia de Andrés

Ph. D in Physics from the Autonomous University of Madrid in 1987.

Research Professor at the Materials Science Institute of Madrid (CSIC)

In charge of the Optical Spectroscopies Lab..

 Promoción Física 1982 UAM

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• Research lines
• Selected publications
• Funded projects
• PhD thesis

 

Research lines

From most recent to oldest:

• Organic-inorganic materials for OLED (Organic Light Emitting Diodes) OFETs (organic field effect transistors).
• Magnetic semiconductor oxides, transparent conductive oxides.
• Oxides with colossal magnetoresistance: bulk materials, thin films and heterostructures: structure, magneto-transport, electroresistance, electronic structure, network dynamics, electron-phonon coupling and piezoelectric-magnetic coupling.
• Lattice dynamics, optical spectroscopy in rare earth materials. Optical spectroscopy under high pressure.
• Metallic and magnetic superlattices and nanostructures.
• Lattice dynamics in ordered and disordered materials.

International large facilities regular user

• Thin film diffraction: epitaxial, polycrystalline and amorphous, ESRF
• X-ray absorption spectroscopy LURE and ESRF synchrotrons
• X-ray Photoemission Spectroscopy. LURE
• Anomalous diffraction of hard and soft X-rays, LURE Synchrotron.

Selected publications  1999-2009

  Colossal magnetoresistive oxides and magnetic semiconductors

Mecanisms of the magnetoresistance, phase coexistance and segregation, inhomogeneities, distortions and local structure of magnetic oxides. Phonons and electron-phonon interactions.

Ultra thin films and heterostructures of manganese perovskites and insulating oxides. Structure, interfases, substrate effects. Effects in the magnetic and transport properties related to the nanometric scale.

Thin films and heterostructures of magnetic oxides and semiconductors

• A. de Andrés, M. García-Hernández, J.L. Martínez, and C. Prieto. “Low temperature magnetoresistance of polycrystalline manganites: connectivity versus grain size”. Appl. Phys. Lett. 74, 3884 (1999)
• A. de Andrés, M. García-Hernández, J.L. Martínez “Conduction channels and magnetoresistance in polycrystalline manganites”. Phys. Rev. B 60, 7328-7334 (1999)
• M. García-Hernández , F. Guinea, A. de Andrés, .L. Martínez, C. Prieto and L. Vázquez. “Coulomb blockade and intergrain conductance in magnetoresistive manganite materials” Phys. Rev. B. 61, 9549-9552 (2000)
• L. Martín-Carrón and  A. de Andrés. “Melting of the cooperative Jhan-Teller distortion in LaMnO₃ single crystal studied by Raman spectroscopy ”  Eur. Phys. J. B 22, 11-16 (2001)
• A. de Andrés, S. Taboada,  J. M. Colino, R. Ramírez, M. García-Hernández and J.L. Martínez. “Low field magnetoresistance at the metal-insulator transition in epitaxial manganite thin films”. Appl. Phys. Lett. 81, 319, (2002)
• L. Martín-Carrón, A. de Andrés, M.T. Casais, M.J. Martínez-Lope and J.A. Alonso. “Raman phonons as a probe of disorder, fluctuations and local structure in doped and undoped orthorhombic and rhombohedral manganites”. Phys. Rev B 66, 174308-1 a 8 (2002), Cond-Mat/0209156
• P. Velasco, J.A. Alonso, V.G. Tissen, W.G. Marshall, M.T. Casais, M.J. Martínez-Lope,  A. de Andrés, C. Prieto and J.L. Martínez. “Pressure effect in the structure, transport properties and magnetic interactions of Tl₂Mn₂O₇ pyrochlore derivatives”. Phys. Rev. B 67, 104403 (2003)
• J. Sánchez-Benítez, J.A. Alonso, M.J. Martínez-Lope, M.T. Casais, J.L. Martínez, A. de Andrés, and M. T. Fernández-Díaz. “Preparation, Crystal and Magnetic Structure, and Magnetotransport Properties of the Double Perovskite CaCu_2.5Mn_4.5O₁₂” Chem. Mater. 15, 2193 (2003)
• M Garcia-Hernandez, A Mellergård, FJ Mompeán, D Sánchez-Soria, A de Andrés, RL McGreevy and J. L. Martínez.“Disorder induced phase segregation in  La_2/3Ca_1/3MnO₃ Manganites”. Phys. Rev. B 68, 94411-1 a 6 (2003). Cond-Mat/0201436.
• A. de Andrés, J. Rubio,  S. Taboada, G. Castro, J.L. Martínez, J. Colino. “Structural and magnetic properties of ultrathin epitaxial La_0.7Ca_0.3MnO₃ manganite films: strain versus finite size effects.”  Appl. Phys. Lett. 83, 713 (2003).
• J. A. Alonso, J. Sánchez-Benítez, A. de Andrés, M.J. Martínez-Lope, M.T. Casais, “Enhanced magnetoresistance in the complex perovskite LaCu₃Mn₄O₁₂.”  Appl. Phys. Lett. 83, 2623 (2003)
• L. Martín-Carrón and A. de Andrés, “Excitations of the orbital order in RMnO3: Light scattering experiements” Phys. Rev. Lett. 92, 175501 (2004)
• J. Sánchez.Benítez, A. de Andrés, C. Prieto,J. Ávila, L. Martín-Carrón, J.L. Martínez, J.A. Alonso, M.J. Martínez-Lope and M.T. Casais. “Doping effects on the valence band of Tl₂Mn₂O₇ pyrochlores: relation to magnetoresistance. Appl. Phys. Lett. 84, 4209 (2004)
• J. Sánchez-Benítez, C. Prieto, A. de Andrés, , J.A. Alonso, M.J. Martínez-Lope, M.T. Casais.. “Coexistence of two Manganese states in magnetoresistive  Ca₂Cu₃Mn₄O₁₂ perovskite derivatives ”. Phys. Rev. B. 70, 024419 (2004)
• J.M. Colino and A. de Andrés “Huge magnetoresistance in ultrathin La0.7Ca0.3MnO3 films: The role of superparamagnetic clusters and domain walls” Appl. Phys. Lett 87 Art. No. 142509 (2005)
• N. Biskup, A. de Andrés, J.L. Martínez and C. Perca. « Origin of the Colossal dielectric response of Pr_0.6Ca_0.4MnO₃» Phys. Rev. B. 72, 024115 (2005)
• J. Sanchez-Benitez, Alonso JA, de Andres A, et al. “Peculiar magnetic behavior of the TbCu3Mn4O12 complex perovskite “, Chem Mat 17, 5070-5076 (2005)
• J. Sanchez-Benitez, Alonso JA, Falcon H, Martinez-Lope MJ, de Andres A, Fernandez-Diaz MT, “Preparation under high pressures and neutron diffraction study of new ferromagnetic RCu₃Mn₄O₁₂ (R = Pr, Sm, Eu, Gd, Dy, Ho, Tm, Yb) perovskites “, J. Phys. Cond. Matt. 17 S3063-S3068 (2005).
• F. Rivadulla , M. Otero-Leal, A. Espinosa , A. de Andrés , C. Ramos , J. Rivas and J. B.Goodenough. “Suppression of Ferromagnetic Double Exchange by Vibronic Phase Segregation” Phys. Rev. Lett. 96, 016402 (2006).
• N. Biskup, A. de Andrés, I. M. Ochando, and M. T. Casais  “Nonlinear electrical characteristics of the low-bandwidth manganites R1–xCaxMnO3 (R= Pr, Nd, Ho, Er; x=0.3–0.5) “ Phys. Rev. B 73, 184404 (2006).
• N. Biskup and A. de Andrés “Electroelasticity in charge ordered Pr_5/8Ca_3/8MnO₃” Phys. Rev. B 74, 184403 (2006)
• N. Biskup,  A. de Andrés, N. M. Nemes, M. García-Hernández, K. V. Glazyrin and Y. M. Mukovskii. “Colossal electroresistance without colossal magnetoresistance in La_0.9Sr_0.1MnO₃”, Appl. Phys. Lett. 90. 222502 (2007).
• E. Céspedes, J. Garcia-Lopez, M. García-Hernández, A. de Andrés and C. Prieto. “Correlation between Mn oxidation state and magnetic behaviour in Mn/ZnO multilayers prepared by sputtering.” J. Appl. Phys. 102, 033907  (2007)
• A. Espinosa, E. Céspedes, C. Prieto, M. García-Hernández, J. Rubio-Zuazo and A. de Andrés. “Interface and Mn valence effects in ferromagnetic insulating multilayers based on Mn and tin oxide”. J. Appl. Phys. 109, 07D129 (2008)
• S. Lambert-Milot, C. Lacroix, D. Menard, R.A. Masut, P. Desjardins, M. García-Hernández, A. de Andrés.  “Metal-organic vapor phase epitaxy of crystallographically oriented MnP magnetic nanoclusters embedded in GaP(001)” J. Appl. Phys. 104, 083501 (2008)
• E. Cespedes, G. R. Castro, F. Jimenez-Villacorta, A. de Andres, C. Prieto. “Mn local order in room temperature ferromagnetic Mn/ZnO multilayers “ J. Phys.- Cond. Mat. 20, 095207 (2008)  
• N. Biskup, A. de Andrés, M. García-Hernández, “Persistent ferromagnetism in antiferromagnetic Pr_0.6Ca_0.4MnO₃” Phys. Rev. B, 78, 184435 (2008)
• E. Céspedes, Y. Huttel, A. de Andrés, M. Vila, N. D. Telling, G. van der Laan, and C. Prieto, “X-ray absorption and magnetic circular dichroism characterization of a novel ferromagnetic MnN_x phase in Mn-Si₃N₄ multilayers”, Appl. Phys. Lett., 93 252506 (2008).
• A. de Andrés, N. Biskup, M. García-Hernández and Y.M. Mukovsky. “Magnetic anisotropy, orbital order and colossal electro-resistance in La_0.9Sr_0.1MnO₃ single crystals.”  Phys. Rev. B  79, 014437   (2009)
• A. Espinosa, M. García-Hernández, N. Menéndez, C. Prieto and A. de Andrés, “Ferromagnetism in SnO2 based multilayers: clustering of defects induced by doping” Phys. Rev B 81, 0644419 (2010).

Organic-inorganic materials for optoelectronic applications.

• C. Cascales,  J. Sánchez-Benítez and A. de Andrés, “High pressure effects on the luminescence spectra of Eu(SO4)2·NH4 catalytic microcrystals: anisotropically induced structural distortions” J. Chem. Phys. A 112, 1464-1472 (2008)
•  A. de Andrés, J.Sánchez-Benítez, C. Cascales., N. Snejko, M.A. Monge, E. Gutiérrez-Puebla “Pressure induced structural transformations in catalytically active Eu(SO₄)₂•NH₄ studied by light scattering.” Chem. Phys. Lett. 451, 106-110 (2008).
• F. Gándara, A. de Andrés, B. Gómez-Lor, E. Gutiérrez-Puebla, M. Iglesias, M. A. Monge, D. M. Proserpio,  N.Snejko. “Rare Earth MOF Materials: Fascinating Structure, Efficient Catalysts, Luminescent Properties.” Cyrst. Growth & Design. 8, 378-380 (2008).
• M.L. Cerrada, C. Serrano, M. Sánchez-Chaves, M. Fernández-García, F. Fernández- Martín, A. de Andrés, R. J. Jiménez Riobóo, A. Kubacka, C. Ferrer, M. Fernández-Garcia. “Self-sterilized EVOH-TiO₂ nanocomposites: effect of TiO₂ content on biocidal properties”  Adv. Func. Mat. 18, 1-12 (2008)
• C.Coya , A. de Andrés, R. Gómez, C. Seoane and JL. Segura. “On the blue emission of a novel stilbenoid dendrimer in thin films for OLED displays”. J. Appl. Phys. 105, 044510 (2009)
• E.M. García-Frutos, E. Gutiérrez-Puebla, M.A. Monge, R. Ramirez, P. de Andrés, A. de Andrés, R. Ramirez, and B. Gómez-Lor. “Crystal Structure and Charge-Transport Properties of N-Trimethyltriindole: A promising candidate as p-type organic semiconductor”.  Organic Electronics 10, 643 (2009).

Funded research projects  1999-2009

Responsible of the following projects since 1999:

• “Preparación de sistemas nanoestructurados de perovskitas y optimización de su magnetorresistencia” CAM07N/0027/99, ICMM. 2000.
• “Desarrollo y puesta a punto de un espectrómetro Raman portátil y una opción de microsonda para caracterización de materiales.” CICyT PETRI 95-0457-OP ICMM – Lasing S.A, 2000-2002
• “Sensores Magnetorresistivos de óxidos y metales magnéticos” CICyT MAT2000-1384 . Instituto de Ciencia de Materiales de Madrid., 28-12-2000 a 28-12-2003
• “Magnetorresistencia en óxidos cerámicos y heteroestructuras: materiales y mecanismos” CAM 07N/0080/2002 . Enero 2003-diciembre 2004. Proyecto coordinado ICMM  – UCM. Coordinator
• “Láminas delgadas y heteroestructuras para dispositivos magneto-electrónicos y acusto-electrónicos: efectos de tamaño finito, de substrato y de intercara en sus propiedades. MCyT MAT2003-01880.  
• “Sistema nanocompuesto TiO₂ -polímero para autoesterilización de materiales de envasado de alimentos”. Proyecto Intramural de Frontera CSIC. 200560F102, ICP, ICTP, IF, ICMM Nov. 2005- Nov. 2007.
• “Development of new semiconducting materials for spintronics”. International cooperation with Canada (École Polytechnique de Montréal). May 2006-September 2008.
• “Materiales híbridos avanzados para aplicaciones fotónicas” Programa de I + D entre grupos de investigación de la Comunidad de Madrid. S2009/MAT-1756. Coordinador C. López. IP ICMM: A. de Andrés.

Direction of PhD Thesis

Susana Taboada Rodríguez, “Fonones Ópticos y Transiciones de Campo Cristalino en R₂BaMO₅ (R= Y o Lantánido, M= Co, Ni, Cu o Zn)” Universidad Autónoma de Madrid. 1998

Laura Martín Carrón. “Fonones ópticos e interacción electrón-fonón en  perovskitas de manganeso con magnetorresistencia colosal” Universidad Autónoma de Madrid, 2003.

Javier Sánchez Benítez “Caracterización de las perovskitas complejas derivadas de CaCu₃Mn₄O₁₂ con propiedades magnetorresistivas. Universidad Autónoma de Madrid, 2006. Codirection with J.A. Alonso.

Ana Espinosa de los Monteros “Ferromagnetismo en láminas y hetroestructuras basadas en óxido de estaño”. Universidad Autónoma de Madrid. February 2010.