Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/16414
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dc.contributor.authorRahman, M. S.en
dc.contributor.authorEvangelou, E. K.en
dc.contributor.authorDimoulas, A.en
dc.contributor.authorMavrou, G.en
dc.contributor.authorGalata, S.en
dc.date.accessioned2015-11-24T18:31:01Z-
dc.date.available2015-11-24T18:31:01Z-
dc.identifier.issn1071-1023-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16414-
dc.rightsDefault Licence-
dc.subjectinduced leakage currenten
dc.subjectthin-filmsen
dc.subjecttransporten
dc.subjectmosfetsen
dc.titleCurrent instabilities in rare-earth oxides-HfO(2) gate stacks grown on germanium based metal-oxide-semiconductor devices due to Maxwell-Wagner instabilities and dielectrics relaxationen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1116/1.3532946-
heal.identifier.secondary<Go to ISI>://000286679400074-
heal.identifier.secondaryhttp://link.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JVTBD900002900000101AB06000001-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.publicationDate2011-
heal.abstractThe authors report the current instabilities in rare-earth oxides-HfO(2) gate stacks grown on Ge (001) based metal-oxide-semiconductor devices under constant voltage stress (CVS). The devices have been subjected to CVS and show relaxation effect and charge accumulation/trapping at the interface of the high-k bilayers known as Maxwell-Wagner (MW) polarization; both cause current instabilities (i.e., current decay). The experimental data can only be explained when co-occurrent effects of MW instability and dielectric relaxation are taken into consideration. On the contrary, any single effect alone is unable to fit and/or explain the results completely. It is interesting that these effects show field dependent behavior; that is, at low CVS, the authors observe the current instabilities (follow J similar to t(-n) law), whereas at higher field, the charge trapping and/or the creation of new defects in the oxides, which eventually lead to breakdown, are significant. These results are also confirmed by capacitance-voltage (C-V(g)) measurements in respective conditions. (c) 2011 American Vacuum Society. [DOI: 10.1116/1.3532946]en
heal.journalNameJournal of Vacuum Science & Technology Ben
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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