Impedance spectroscopy study of the electrical conductivity and dielectric constant of polycrystalline S Lanfredi, ACM Rodrigues
Journal of applied physics 86 (4), 2215-2219, 1999
211 1999 Electric conductivity and relaxation in fluoride, fluorophosphate and phosphate glasses: analysis by impedance spectroscopy S Lanfredi, PS Saia, R Lebullenger, AC Hernandes
Solid State Ionics 146 (3-4), 329-339, 2002
186 2002 Ferroelectric state analysis in grain boundary of ceramic MAL Nobre, S Lanfredi
Journal of applied physics 93 (9), 5557-5562, 2003
151 2003 Dielectric spectroscopy on Bi3Zn2Sb3O14 ceramic: an approach based on the complex impedance MAL Nobre, S Lanfredi
Journal of Physics and Chemistry of Solids 64 (12), 2457-2464, 2003
124 2003 Phase transition in sodium lithium niobate polycrystal: an overview based on impedance spectroscopy MAL Nobre, S Lanfredi
Journal of Physics and Chemistry of Solids 62 (11), 1999-2006, 2001
116 2001 Dielectric properties of Bi3Zn2Sb3O14 ceramics at high temperature MAL Nobre, S Lanfredi
Materials Letters 47 (6), 362-366, 2001
116 2001 Dense ceramics of NaNbO3 produced from powders prepared by a new chemical route S Lanfredi, L Dessemond, ACM Rodrigues
Journal of the European Ceramic Society 20 (7), 983-990, 2000
113 2000 Grain boundary electric characterization of semiconducting ceramic: A negative temperature coefficient thermistor MAL Nobre, S Lanfredi
Journal of applied physics 93 (9), 5576-5582, 2003
112 2003 Crystallographic properties of KSr2Nb5O15 S Lanfredi, CX Cardoso, MAL Nobre
Materials Science and Engineering: B 112 (2-3), 139-143, 2004
105 2004 Structural characterization and Curie temperature determination of a sodium strontium niobate ferroelectric nanostructured powder S Lanfredi, DHM Gênova, IAO Brito, ARF Lima, MAL Nobre
Journal of Solid State Chemistry 184 (5), 990-1000, 2011
94 2011 Dielectric loss and phase transition of sodium potassium niobate ceramic investigated by impedance spectroscopy MAL Nobre, S Lanfredi
Catalysis Today 78 (1-4), 529-538, 2003
85 2003 Electric and dielectric properties of single crystals S Lanfredi, JF Carvalho, AC Hernandes
Journal of Applied Physics 88 (1), 283-287, 2000
84 2000 Phase transition at low temperature in ceramic S Lanfredi, MH Lente, JA Eiras
Applied physics letters 80 (15), 2731-2733, 2002
82 2002 Negative temperature coefficient thermistor based on ceramic: An oxide semiconductor at high temperature MAL Nobre, S Lanfredi
Applied physics letters 82 (14), 2284-2286, 2003
73 2003 Thermistor ceramic with negative temperature coefficient based on An inverse spinel-type phase MAL Nobre, S Lanfredi
Applied physics letters 81 (3), 451-453, 2002
69 2002 Temperature‐dependent Raman scattering studies in NaNbO3 ceramics RJC Lima, PTC Freire, JM Sasaki, AP Ayala, FEA Melo, J Mendes Filho, ...
Journal of Raman Spectroscopy 33 (8), 669-674, 2002
59 2002 Phase transitions and interface phenomena in the cryogenic temperature domain of a niobate nanostructured ceramic S Lanfredi, C Darie, FS Bellucci, CV Colin, MAL Nobre
Dalton Transactions 43 (28), 10983-10998, 2014
55 2014 New evidence of grain boundary phenomenon in Zn7Sb2O12 ceramic: an analysis by impedance spectroscopy MAL Nobre, S Lanfredi
Materials Letters 50 (5-6), 322-327, 2001
54 2001 Dark conductivity, photoconductivity, and light-induced absorption in photorefractive sillenite crystals L Mosquera, I de Oliveira, J Frejlich, AC Hernandes, S Lanfredi, ...
Journal of Applied Physics 90 (6), 2635-2641, 2001
52 2001 Impedance spectroscopy analysis of high-temperature phase transitions in sodium lithium niobate ceramics MAL Nobre, S Lanfredi
Journal of Physics: Condensed Matter 12 (35), 7833, 2000
50 2000