Lygia Christina de Moura Walmsley

• Abstract

  The goal of this project is to continue the study of transport and magnetic properties of organic and inorganic correlated systems. We want to advance the study of doped plasticized polyanilines, BiMn2O5 and start the study single crystals of Fe3O2BO3 and Ba0.96K0.04BiO3. In doped (protonated) plasticized polyanilines obtained from a collaboration with researchers of the CEA, Grenoble, o…

  Study of organic and inorganic correlated systems, AP.R

• Abstract

  The main purpose of the Center for Excellence in Electrochemically Synthesized Nanostructures (ESNAS) is the use of electrochemical techniques to produce electronic, magnetic and optical materials. Due to the innumerable possibilities available for manufacturing materiaIs using electrochemical procedures, which include control on the nanometric scale, almost every type of material, includ…

  Center for Excellence in Electrochemically Synthesized Nanostructures, AP.PRNX.TEM
• Kinetics of crystallization in conducting polymers observed from electron spin resonance., PUB.ART

(Only some records are available in English at this moment)

• Abstract

  The transition metal oxides have been intensively studied in the last decade, not only for their potential technological applications but by the challenge physics. Several of them crystallize in the double perovskite structure. The structural, electronic and magnetic properties are interconnected. The a.c. conductivity in the double perovskites Ca2-xLaxFeIrO6 e Sr2-xLaxFeIrO6 can give inf…

  Electron spin resonance (ESR) in plastdoped polyanilines and AC conductivity and ESR in oxides., BP.MS

• Abstract

  Samples of conductive plastdoped polianiline, obtained by the collaboration with researchers from CEA, Grenoble, France, will be the focus of this work. Electrical measurements, including a.c. and d.c. techniques will be performed at the Laboratory of Electrical Measurements, at UNESP, in Rio Claro, under coordination of Dr. Lygia Walmsley (advisor). Magnetoresistance measurements will be…

  Study of electrical properties in organic and inorganic correlated systems, BP.MS

• Abstract

  Perform measurements of dc and ac conductivity and to get electrical and magnetic information on doped plastized polyanilines using Electron Paramagnetic Resonance.

  Electrical measurements in strongly correlated systems and conection with magnetic properties: Electric and magnetic information in doped plastized polyanilines., BP.IC

(Only some records are available in English at this moment)

• Abstract

  In our master's studies, we have been investigating the electric and magnetic behavior of double perovskites through ac conductivity and the polaronic defect structure of doped polianilines through Electron Spin Resonance (EPR). Another interesting kind of defects which can be studied through EPR spectroscopy is that due to oxygen vacancies in oxide materials. Multiferroics are a very int…

  Investigation by EPR of defects in polycrystalline samples of BiMn2O5, BE.EP.MS