Matches in SemOpenAlex for { <https://semopenalex.org/work/W2094367049> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2094367049 abstract "A numerical model has been developed for simulating magnetic domain configurations, remanence, and viscosity curves in systems with strong perpendicular anisotropy and strong disorder, starting from internal switching field distributions for pinning and nucleation processes in the slow dynamics regime. In the considered systems, the domains expand in a percolationlike manner and domain configuration displays fractal properties. The simulations show that even in the case of pinning not governed by nucleation an abrupt avalanche propagation of reversed domains occurs. It is moreover evidenced that a decrease of viscosity coefficients can coexist with lowered energy barrier heights. The model has been applied to perpendicular FePt thin films with granular morphology and corresponding exchange-coupled Fe/FePt bilayers, by exploiting magnetic force microscopy, dc demagnetization (DCD), isothermal remanence, and viscosity data. The comparison between magnetic viscosity phenomena in thin films and exchange-coupled bilayers has been achieved by the definition of an adimensional viscosity coefficient. The addition of the Fe layer causes a decrease of the maximum viscosity coefficient, thus demonstrating that viscosity measures can be utilized to verify the coupling of hard/soft layers. From experiments it is inferred that our samples are mainly influenced by the pinning energy barrier law, the linearity of which allows reconstructing universal viscosity curves starting from DCD data. The calculated activation volumes are comparable to the average grain volume of the FePt layer. The obtained results also demonstrate that the addition of the Fe layer leads to a widening and a shift to lower fields of the pinning field distribution, determining a decrease of both the maximum viscosity and the pinning energy barrier heights and an increase of the demagnetizing effective field." @default.
- W2094367049 created "2016-06-24" @default.
- W2094367049 creator A5012693212 @default.
- W2094367049 creator A5032868825 @default.
- W2094367049 creator A5047244787 @default.
- W2094367049 creator A5048195910 @default.
- W2094367049 creator A5069226754 @default.
- W2094367049 creator A5070793574 @default.
- W2094367049 date "2008-11-24" @default.
- W2094367049 modified "2023-10-14" @default.
- W2094367049 title "Modeling and characterization of irreversible switching and viscosity phenomena in perpendicular exchange-spring Fe-FePt bilayers" @default.
- W2094367049 cites W1639155496 @default.
- W2094367049 cites W1865525050 @default.
- W2094367049 cites W1968643756 @default.
- W2094367049 cites W1977281417 @default.
- W2094367049 cites W1981040167 @default.
- W2094367049 cites W1981893650 @default.
- W2094367049 cites W1985536299 @default.
- W2094367049 cites W1987227200 @default.
- W2094367049 cites W1987518099 @default.
- W2094367049 cites W1988564298 @default.
- W2094367049 cites W2000551275 @default.
- W2094367049 cites W2004090844 @default.
- W2094367049 cites W2013767151 @default.
- W2094367049 cites W2023185294 @default.
- W2094367049 cites W2042149181 @default.
- W2094367049 cites W2046079689 @default.
- W2094367049 cites W2051949438 @default.
- W2094367049 cites W2068495198 @default.
- W2094367049 cites W2092201757 @default.
- W2094367049 cites W2098649480 @default.
- W2094367049 cites W2101074512 @default.
- W2094367049 cites W2144797072 @default.
- W2094367049 cites W2165095321 @default.
- W2094367049 doi "https://doi.org/10.1103/physrevb.78.184434" @default.
- W2094367049 hasPublicationYear "2008" @default.
- W2094367049 type Work @default.
- W2094367049 sameAs 2094367049 @default.
- W2094367049 citedByCount "19" @default.
- W2094367049 countsByYear W20943670492012 @default.
- W2094367049 countsByYear W20943670492013 @default.
- W2094367049 countsByYear W20943670492014 @default.
- W2094367049 countsByYear W20943670492015 @default.
- W2094367049 countsByYear W20943670492016 @default.
- W2094367049 countsByYear W20943670492018 @default.
- W2094367049 countsByYear W20943670492020 @default.
- W2094367049 countsByYear W20943670492023 @default.
- W2094367049 crossrefType "journal-article" @default.
- W2094367049 hasAuthorship W2094367049A5012693212 @default.
- W2094367049 hasAuthorship W2094367049A5032868825 @default.
- W2094367049 hasAuthorship W2094367049A5047244787 @default.
- W2094367049 hasAuthorship W2094367049A5048195910 @default.
- W2094367049 hasAuthorship W2094367049A5069226754 @default.
- W2094367049 hasAuthorship W2094367049A5070793574 @default.
- W2094367049 hasConcept C115260700 @default.
- W2094367049 hasConcept C121332964 @default.
- W2094367049 hasConcept C127172972 @default.
- W2094367049 hasConcept C155058782 @default.
- W2094367049 hasConcept C159985019 @default.
- W2094367049 hasConcept C192562407 @default.
- W2094367049 hasConcept C26873012 @default.
- W2094367049 hasConcept C2780320949 @default.
- W2094367049 hasConcept C32546565 @default.
- W2094367049 hasConcept C32938098 @default.
- W2094367049 hasConcept C61048295 @default.
- W2094367049 hasConcept C62520636 @default.
- W2094367049 hasConcept C97355855 @default.
- W2094367049 hasConceptScore W2094367049C115260700 @default.
- W2094367049 hasConceptScore W2094367049C121332964 @default.
- W2094367049 hasConceptScore W2094367049C127172972 @default.
- W2094367049 hasConceptScore W2094367049C155058782 @default.
- W2094367049 hasConceptScore W2094367049C159985019 @default.
- W2094367049 hasConceptScore W2094367049C192562407 @default.
- W2094367049 hasConceptScore W2094367049C26873012 @default.
- W2094367049 hasConceptScore W2094367049C2780320949 @default.
- W2094367049 hasConceptScore W2094367049C32546565 @default.
- W2094367049 hasConceptScore W2094367049C32938098 @default.
- W2094367049 hasConceptScore W2094367049C61048295 @default.
- W2094367049 hasConceptScore W2094367049C62520636 @default.
- W2094367049 hasConceptScore W2094367049C97355855 @default.
- W2094367049 hasIssue "18" @default.
- W2094367049 hasLocation W20943670491 @default.
- W2094367049 hasOpenAccess W2094367049 @default.
- W2094367049 hasPrimaryLocation W20943670491 @default.
- W2094367049 hasRelatedWork W1941859001 @default.
- W2094367049 hasRelatedWork W1978239280 @default.
- W2094367049 hasRelatedWork W2009011416 @default.
- W2094367049 hasRelatedWork W2053865850 @default.
- W2094367049 hasRelatedWork W2059527580 @default.
- W2094367049 hasRelatedWork W2069057171 @default.
- W2094367049 hasRelatedWork W2074194146 @default.
- W2094367049 hasRelatedWork W2083429908 @default.
- W2094367049 hasRelatedWork W2188979517 @default.
- W2094367049 hasRelatedWork W827810408 @default.
- W2094367049 hasVolume "78" @default.
- W2094367049 isParatext "false" @default.
- W2094367049 isRetracted "false" @default.
- W2094367049 magId "2094367049" @default.
- W2094367049 workType "article" @default.