Author: Patricia Álvarez

29 November-4 December 2015: Oral Conference of Mariona Coll at 2015 MRS Fall Meeting, Boston, Massachusetts

F15-Logo-Banner-150x132 The 2015 MRS Fall Meeting was held in Boston, Massachusetts, from September 15 to 18 2015 Mariona Coll presented a contributed oral presentation: “Compositional Tuning with Atomic Scale Control of Functional Perovskite Oxide Thin Films by Low Temperature Chemical Deposition Methodologies” Symposium FF—Integration of Functional Oxides with Semiconductors


WORKSHOP on VORTEX PHYSICS OF STRAINED NANOCOMPOSITE FILMS Organizer and Chair: Prof. Teresa Puig 10-11 December 2015 ICMAB-CSIC Agenda Day 1 9:30 Registration 10:00 Laboratories tour 11:30 Coffee break Session I: Vortex physics in PLD nanocomposites Session Chair: Prof. Guy Deutscher, Center for Nanoscience and Nanotechnology, Tel Aviv University. 12:00-12:45 Kaname Matsumoto, Kyushu Institute of Technology, Japan: “Critical current control in REBCO superconductor by using different kinds of artificial pinning centers” 13:00 Lunch 14:00-14:45 Yutaka Yoshida, Kyushu Institute of Technology, Japan: “Jc enhancement in the nanorod-introduced REBCO films on single-crystalline substrates and metal tapes” 14:45-15:30 Satoshi Awaji, Kyushu Institute of Technology, Japan: “Flux pining state and its effect on Jc and Bi properties under the nanorod-introduced REBCO films” 15:30 Coffee Break Session II: Vortex physics in CSD nanocomposites Session Chair: Prof. Kaname Matsumoto, Kyushu Institute of Technology, Japan 16:00-16:45 Mariona Coll, ICMAB-CSIC: “CSD Growth of nanocomposites” 17:00-17:45 Bernat Mundet, ICMAB-CSIC: “Origin, evolution and interaction of structural defects in nanocomposites grown by CSD” 17:45-18:30 Ferran Vallès, ICMAB-CSIC: Tuning vortex pinning landscape and anisotropy of CSD Nanocomposites 18:30 Closing session 19:30 Aperitive 20:30 dinner Restaurante La Marmita – Hotel Campus Vila Universitària Campus de la UAB 08193 Bellaterra (Cerdanyola del Vallès) Taxis will be arranged to go back to Barcelona *All invited talks are of 30 min plus 15 minutes discussion.   Agenda Day 2 Session III: Vortex physics and electronic structure Session Chair: Dr. Anna Palau, ICMAB-CSIC 9:30-10:15 Enrico Silva, Dept. of Engineering, Università Roma Tre: What can we learn from pinning and dissipation of superconducting nanocomposite films with microwaves 10:15-11:00 Guy Deutscher, Center for Nanoscience and Nanotechnology, Tel Aviv University : Lattice strain effects on pair condensation and vortex pinning 11:00-11:30 Coffee break 11:30 General Discussion: Session Chair: Prof. Teresa Puig, ICMAB-CSIC Are the pinning centers of high temperature effective at low temperature? What determines de irreversibility line? What similarities can be gathered between CSD and PLD regarding vortex pinning? Do we have isotropic strain in PLD nanocomposites at low temperature like in CSD? What are the consequences of strain in the electronic density of state? How can we measure the consequences of strain on the DOS or quasiparticles behavior? Can microwave measurements answer some questions regarding the quasiparticles nature in strained regions? 13:00 Lunch 15:00 Discussion and future collaboration initiatives 17:00 Closing of the workshop

Nanocrystalline Ferroelectric BiFeO3 Thin Films by Low-Temperature Atomic Layer Deposition

nanocrystalline ferroelectric

Mariona Coll, Jaume Gazquez, Ignasi Fina, Zakariya Khayat, Andy Quindeau, Marin Alexe, Maria Varela, Susan Trolier-McKinstry, Xavier Obradors, and Teresa Puig;
Chem. Mater., 2015, 27 (18), pp 6322–6328

DOI: 10.1021/acs.chemmater.5b02093

In this work, ferroelectricity is identified in nanocrystalline BiFeO3 (BFO) thin films prepared by low-temperature atomic layer deposition. A combination of X-ray diffraction, reflection high energy electron diffraction, and scanning transmission electron microscopy analysis indicates that the as-deposited films (250 °C) consist of BFO nanocrystals embedded in an amorphous matrix. Postannealing at 650 °C for 60 min converts the sample to a crystalline film on a SrTiO3substrate. Piezoelectric force microscopy demonstrates the existence of ferroelectricity in both as-deposited and postannealed films. The ferroelectric behavior in the as-deposited stage is attributed to the presence of nanocrystals. Finally, a band gap of 2.7 eV was measured by spectroscopic ellipsometry. This study opens broad possibilities toward ferroelectric oxides on 3D substrates and also for the development of new ferroelectric perovskites prepared at low temperature.

Candy Fu

长城照片 Hi! My name is Candy Fu. I come from Wuhan, China. At this moment , I felt lucky and excited to commence my Ph.D study at ICMAB, a tremendously developed platform.  I’ve joined in the group of Superconducting Materials and Nanostructure at Large Scale under the supervision of Narcis Mestres. I am fond of dancing, running, and travelling.

11-15 May 2015: Oral Conference of Narcis Mestres at 2015 E-MRS Fall Meeting, Warsaw

Logo E_MRS fall (1)Picture_NM Oct_2015 The 2015 E-MRS Fall Meeting and Exhibit will was held in Warsaw University of Technology, from September 15 to 18 2015 Narcis Mestres presented a contributed oral presentation: “Confined Sol-Gel route to epitaxial integration of ferromagnetic nanowires on Silicon” In two different Symposia Simposium O: Alternative semiconductor integration in Si microelectronics: materials, techniques & applications Symposium L: Towards Oxide-Based Electronics: growth and applications of oxide thin films and heterostructures

September 2015: SUMAN group at EUCAS 2015 in Lyon

eucas_final logo_eucas The 12th European Conference on Applied Superconductivity EUCAS 2015 will be held from the 6th to the 10th of September 2015. Cornelia Pop, at Materials – YBCO Thin films, presented a contributed oral conference: “Thick superconducting YBCO films and coated conductors at high growth rate by inkjet printing deposition of low fluorine solutions” Anna Palau, at Materials – Vortex flux pinning I, presented a contributed oral conference: “New nano-scale engineering strategies of solution grown YBCO nanocomposites for tuning vortex pinning landscape” Susana Ricart, at Materials – Vortex flux pinning I, presented a contributed oral conference: “Solution design for ReBCO CSD-MOD films and nanocomposites” Ferran Valles, at Materials – Vortex flux pinning II, presented a contributed oral conference: “Pinning and relaxation of vortices in CSD YBCO nanocomposites” Xavier Granados, at Large Scale – Superconducting machines, presented a contributed oral conference: “Stacks based superconducting motor: towards lightweight, efficient and simple propulsion systems” Xavier Obradors, at MaterialsYBCO films II, presented a poster: “In-situ monitoring of oxygenation kinetics in solution derived YBCO films by electrical resistivity”

Cristiano Matricardi

Cristiano Matricardi Hi there, I’m Cristiano, I’ve got my master degree in Supramolecular chemistry in Italy at the University of Pavia. I’ve joined the ICMAB on July as a scholarship holder. Right now I’m working in the Superconducting Materials and Nanostructures at Large scale Group. My work deals with polymer assisted deposition of magnetic oxide films. see you around then!!!

Guilherme Sotelo

My name is Guilherme Sotelo and I was born in Rio de Janeiro, Brazil. I work at Fluminense Federal University (UFF) as Assistant Professor since 2009. I work with large scale applications of superconductors, more specifically in the electrical power applications using coated conductors. I have the degree of Doctor in Science in Electrical Engineering from Federal University of Rio de Janeiro (2007). At ICMAB I have joined the Group of Superconducting Materials & Large Scale Nanostructured, to stay here in my Sabbatical year under the supervision of Dr. Xavier Granados. IMG_20150419_162845

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