Models of charge transport in electron-beam irradiated insulators

Autor: Guilherme Fontes Leal Ferreira, M.T. Figueiredo, Gerhard M. Sessler

Publikováno v: IEEE Transactions on Dielectrics and Electrical Insulation. 11:192-202

Charge transport in electron-beam irradiated insulators can be studied with various theoretical models based on different assumptions concerning generation, drift, trapping, and recombination of the charge carriers. In the past, two models have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51989d4d4c5d7d4da1221de67ad829af
https://doi.org/10.1109/tdei.2004.1285887

Thermally stimulated depolarizations: disclosing an approximate universality

Autor: M.T. Figueiredo, G. F. Leal Ferreira, R A Moreno Alfaro

Publikováno v: Journal of Physics D: Applied Physics. 29:3117-3121

This paper presents an approximate universality displayed by thermally stimulated depolarization currents ruled by stretched exponential relaxations when properly re-scaled. A visually perfect universality occurs especially when the energy and the he

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3971bc18445ae5254973190682c04a79
https://doi.org/10.1088/0022-3727/29/12/027

Potential buildup in samples charged by successive low-energy pulses

Autor: M.T. Figueiredo, G. F. Leal Ferreira

Publikováno v: IEEE Transactions on Dielectrics and Electrical Insulation. 1:563-568

We present a calculation for the charging of a dielectric sample submitted in open circuit to a series of consecutive, identical, electron pulses of low energy. The calculation is based on deep trap kinematics and takes full account of space charge e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::340e95bb3fe836c8198144d6930279dc
https://doi.org/10.1109/94.311698

A eletrostática na corrente elétrica em fios

Autor: Guilherme Fontes Leal Ferreira, M.T. Figueiredo

Publikováno v: Revista Brasileira de Ensino de Física v.25 n.4 2003
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Vol 25, Iss 4, Pp 374-377
Revista Brasileira de Ensino de Física, Vol 25, Iss 4, Pp 374-377 (2003)
Revista Brasileira de Ensino de Física, Volume: 25, Issue: 4, Pages: 374-377, Published: DEC 2003

O artigo refere-se à questão 'Quem cria o campo elétrico que move as cargas na corrente elétrica em fios?'. Através de modelo simples, mostra-se que uma distribuição de cargas, variando linearmente ao longo do fio e depositada na sua superfici

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4da089e0469b5cd8f57becc4efad6329
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172003000400006

TSDC study on VDF/TrFE copolymers

Autor: J M Guimaraes Neto, M.T. Figueiredo, Roberto Mendonça Faria

Publikováno v: [1991 Proceedings] 7th International Symposium on Electrets (ISE 7).

TSDC measurements were carried out with samples of 60:40 and 70:30 molar ratios of VDF/TrFE (vinylidene fluoride-trifluoroethylene) copolymers. The 60(VDF):40(TrFE) copolymer presented a current peak around 90 degrees C, associated with its ferroelec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31f3e95c135a6a4f4786997f2f952e73
https://doi.org/10.1109/ise.1991.167260