logo icmab ochoa 02 01 logo icmab ochoa 02 01
  • NEWS

Evidence of a minority monoclinic LaNiO2.5 phase in lanthanum nickelate thin films

L. López-Conesa,* J. M. RebledD. PesqueraN. DixF. SánchezG. HerranzJ. FontcubertaC. MagénM. J. CasanoveS. Estradé and  F. Peiró. Phys. Chem. Chem. Phys., 2017,19, 9137-9142. DOI:10.1039/C7CP00902J

LaNiO3 (LNO) thin films of 14 nm and 35 nm thicknesses grown epitaxially on LaAlO3 (LAO) and (LaAlO3)0.3(Sr2TaAlO6)0.7 (LSAT) substrates are studied using High Resolution Transmission Electron Microscopy (HRTEM) and High Angle Annular Dark Field (HAADF) imaging. The strain state of the films is studied using Geometric Phase Analysis (GPA). Results show the successful in-plane adaptation of the films to the substrates, both in the compressive (LAO) and tensile (LSAT) cases. Through the systematic analysis of HRTEM superstructure contrast modulation along different crystal orientations, localized regions of the monoclinic LaNiO2.5 phase are detected in the 35 nm films.

Also on ICMAB...

  • Multiple strain-induced phase transitions in LaNiO3 thin films

    16 September 2016 1693 hit(s)

    M. C. Weber, M. Guennou, N. Dix, D. Pesquera, F. Sánchez, G. Herranz, J. Fontcuberta, L. López-Conesa, S. Estradé, F. Peiró, Jorge Iñiguez, and J. Kreisel. Phys. Rev. B 94. DOI: http://dx.doi.org/10.1103/PhysRevB.94.014118
  • Absence of magnetic proximity effects in magnetoresistive Pt/CoFe2O4 hybrid interfaces

    28 June 2016 2459 hit(s)

    M. Valvidares, N. Dix, M. Isasa, K. Ollefs, F. Wilhelm, A. Rogalev, F. Sánchez, E. Pellegrin, A. Bedoya-Pinto, P. Gargiani, L. E. Hueso, F. Casanova, and J. Fontcuberta. Phys. Rev. B 93, 214415. DOI: Phys Rev B.93.214415
  • Unravelling and controlling hidden imprint fields in ferroelectric capacitors

    02 May 2016 2069 hit(s)

    Fanmao Liu, I. Fina, R. Bertacco, and  J. Fontcuberta. Scientific Reports, 6, 25028  (2016). doi:10.1038/srep25028
  • Magnetismo en superconductores de alta temperatura

    23 March 2016 2452 hit(s)

    Hasta ahora se pensaba que la superconductividad y el magnetismo eran fenómenos excluyentes, pero investigadores del Instituto de Ciencia de Materiales de Barcelona y del Sincrotrón ALBA han encontrado una nueva fuente de magnetismo derivada de defectos puntuales en un tipo de superconductor: los cupratos de alta temperatura. El descubrimiento ayudará a mejorar las propiedades de estos materiales.
  • Artificial chemical and magnetic structure at the domain walls of an epitaxial oxide

    20 November 2014 3267 hit(s)

    S. Farokhipoor*, C. Magén*, S. Venkatesan, J.Íñiguez, C. J. M. Daumont, D. Rubi, E. Snoeck, M. Mostovoy, C. de Graaf, A. Müller, M. Döblinger, C. Scheu, B. NohedaNature, Nov-2014

Trending on ICMAB...

Search

Your experience on this site will be improved by allowing cookies Cookie Settings