| A polaronic stacking fault defect model for CaCu3Ti4O12 material: an approach for the origin of the huge dielectric constant and semiconducting coexistent features PR Bueno, R Tararan, R Parra, E Joanni, MA Ramirez, WC Ribeiro, ... Journal of Physics D: Applied Physics 42 (5), 055404, 2009 | 179 | 2009 |
| Non-Ohmic and dielectric properties of a Ca2Cu2Ti4O12 polycrystalline system MA Ramírez, PR Bueno, JA Varela, E Longo Applied Physics Letters 89 (21), 2006 | 130 | 2006 |
| Influence of mineralizer agents on the growth of crystalline CeO2 nanospheres by the microwave-hydrothermal method RC Deus, M Cilense, CR Foschini, MA Ramirez, E Longo, AZ Simões Journal of Alloys and Compounds 550, 245-251, 2013 | 97 | 2013 |
| Photoluminescence properties of cerium oxide nanoparticles as a function of lanthanum content RC Deus, JA Cortés, MA Ramirez, MA Ponce, J Andres, LSR Rocha, ... Materials Research Bulletin 70, 416-423, 2015 | 89 | 2015 |
| Microwave-hydrothermal synthesis of barium strontium titanate nanoparticles AZ Simões, F Moura, TB Onofre, MA Ramirez, JA Varela, E Longo Journal of Alloys and Compounds 508 (2), 620-624, 2010 | 77 | 2010 |
| Evaluation of the effect of the stoichiometric ratio of Ca/Cu on the electrical and microstructural properties of the CaCu3Ti4O12 polycrystalline system MA Ramírez, PR Bueno, R Tararam, AA Cavalheiro, E Longo, JA Varela Journal of Physics D: Applied Physics 42 (18), 185503, 2009 | 74 | 2009 |
| Evolution of CaCu3Ti4O12 varistor properties during heat treatment in vacuum VPB Marques, A Ries, AZ Simoes, MA Ramirez, JA Varela, E Longo Ceramics International 33 (7), 1187-1190, 2007 | 74 | 2007 |
| Lanthanum-doped Bi4Ti3O12 prepared by the soft chemical method: Rietveld analysis and piezoelectric properties AZ Simões, BD Stojanovic, MA Ramirez, AA Cavalheiro, E Longo, ... Ceramics International 34 (2), 257-261, 2008 | 68 | 2008 |
| Dielectric spectroscopy analysis of CaCu3Ti4O12 polycrystalline systems PR Bueno, MA Ramírez, JA Varela, E Longo Applied Physics Letters 89 (19), 2006 | 68 | 2006 |
| Towards carbon monoxide sensors based on europium doped cerium dioxide PP Ortega, LSR Rocha, JA Cortés, MA Ramirez, C Buono, MA Ponce, ... Applied Surface Science 464, 692-699, 2019 | 54 | 2019 |
| Improvement of the properties and the adherence of DLC coatings deposited using a modified pulsed-DC PECVD technique and an additional cathode G Capote, MA Ramírez, PCS Da Silva, DC Lugo, VJ Trava-Airoldi Surface and Coatings Technology 308, 70-79, 2016 | 52 | 2016 |
| Comparative Electrical Behavior at Low and High Current of SnO2‐ and ZnO‐Based Varistors MA Ramírez, W Bassi, R Parra, PR Bueno, E Longo, JA Varela Journal of the American Ceramic Society 91 (7), 2402-2404, 2008 | 52 | 2008 |
| Correlation Between Photoluminescence and Structural Defects in Ca1+xCu3−xTi4O12 Systems LH Oliveira, EC Paris, W Avansi, MA Ramirez, VR Mastelaro, E Longo, ... Journal of the American Ceramic Society 96 (1), 209-217, 2013 | 50 | 2013 |
| Importance of oxygen atmosphere to recover the ZnO-based varistors properties MA Ramírez, AZ Simoes, PR Bueno, MA Márquez, MO Orlandi, JA Varela Journal of materials science 41, 6221-6227, 2006 | 50 | 2006 |
| Conventional and microwave sintering of CaCu3Ti4O12/CaTiO3 ceramic composites: non-ohmic and dielectric properties MA Ramírez, PR Bueno, E Longo, JA Varela Journal of Physics D: Applied Physics 41 (15), 152004, 2008 | 49 | 2008 |
| Low-temperature synthesis of nanosized bismuth ferrite by the soft chemical method EC Aguiar, MA Ramirez, F Moura, JA Varela, E Longo, AZ Simoes Ceramics International 39 (1), 13-20, 2013 | 47 | 2013 |
| Comparative degradation of ZnO-and SnO2-based polycrystalline non-ohmic devices by current pulse stress MA Ramirez, W Bassi, PR Bueno, E Longo, JA Varela Journal of Physics D: Applied Physics 41 (12), 122002, 2008 | 47 | 2008 |
| Dielectric behaviour of CaCu3Ti4O12-epoxy composites LA Ramajo, MA Ramírez, PR Bueno, MM Reboredo, MS Castro Materials Research 11, 85-88, 2008 | 47 | 2008 |
| Tuning structural, optical, and gas sensing properties of ceria-based materials by rare-earth doping PP Ortega, B Hangai, H Moreno, LSR Rocha, MA Ramírez, MA Ponce, ... Journal of Alloys and Compounds 888, 161517, 2021 | 45 | 2021 |
| Elastic modulus and hardness of CaTiO3, CaCu3Ti4O12 and CaTiO3/CaCu3Ti4O12 mixture MA Ramírez, R Parra, MM Reboredo, JA Varela, MS Castro, L Ramajo Materials Letters 64 (10), 1226-1228, 2010 | 45 | 2010 |
