Matches in SemOpenAlex for { <https://semopenalex.org/work/W2068750087> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2068750087 endingPage "125104" @default.
- W2068750087 startingPage "125104" @default.
- W2068750087 abstract "The magnetization of alloyed Ohmic contact film structures of the form AuGe/Ni/Au deposited on a GaAs/AlGaAs heterostructure substrate are reported as functions of Ni-layer thickness and alloying temperature. The observations are correlated with contact resistance and surface morphology studies. It is found that drops in magnetization, due to conversion of Ni to a non-magnetic phase or alloy, begin at anneal temperatures as low as 100 °C for all Ni-layer thicknesses. The conversion is completed at an anneal temperature, TA, that increases with Ni-layer thickness. TA varies from 100–200 °C to 400–430 °C as Ni-layer thickness is varied from 10 to 100 nm for an AuGe (88 : 12 wt%) layer thickness of 100 nm. The electrical contact formation, however, appears to begin at much higher temperatures than 100 °C. Lowest contact resistance (0.05 ± 0.01 Ω mm) is obtained when Ni thickness is about 25 nm for 100 nm AuGe layer thickness, anneal temperature is 400 °C and anneal duration is 60 s. This contact is non-magnetic. Measurements on samples with other AuGe layer thicknesses suggest that the contact resistances are comparable to this optimum value, if the ratio of AuGe layer thickness to that of Ni is ≥4. Increasing the Ni-layer thickness reduces the roughness of annealed contacts, but also increases contact resistance. The magnetic measurements are suggestive of a transformed Ni-layer thickness proportional to the thickness of the underlying AuGe layer. It is proposed that Ni diffuses into AuGe in a concentration limited diffusive mechanism followed by segregation into Ni3Ge." @default.
- W2068750087 created "2016-06-24" @default.
- W2068750087 creator A5013844777 @default.
- W2068750087 creator A5052560156 @default.
- W2068750087 creator A5058110173 @default.
- W2068750087 date "2009-06-01" @default.
- W2068750087 modified "2023-09-26" @default.
- W2068750087 title "Influence of Nickel layer thickness on the magnetic properties and contact resistance of AuGe/Ni/Au Ohmic contacts to GaAs/AlGaAs heterostructures" @default.
- W2068750087 cites W1542233776 @default.
- W2068750087 cites W1654255923 @default.
- W2068750087 cites W1981003271 @default.
- W2068750087 cites W1981201452 @default.
- W2068750087 cites W1983660342 @default.
- W2068750087 cites W1995843862 @default.
- W2068750087 cites W2003375994 @default.
- W2068750087 cites W2004011734 @default.
- W2068750087 cites W2004454854 @default.
- W2068750087 cites W2006935967 @default.
- W2068750087 cites W2007290941 @default.
- W2068750087 cites W2021331082 @default.
- W2068750087 cites W2030089069 @default.
- W2068750087 cites W2049036404 @default.
- W2068750087 cites W2049239687 @default.
- W2068750087 cites W2056446941 @default.
- W2068750087 cites W2078433307 @default.
- W2068750087 cites W2079706871 @default.
- W2068750087 cites W2089942650 @default.
- W2068750087 cites W2093387032 @default.
- W2068750087 cites W2099374815 @default.
- W2068750087 cites W2115132691 @default.
- W2068750087 cites W2124072949 @default.
- W2068750087 cites W2172247432 @default.
- W2068750087 doi "https://doi.org/10.1088/0022-3727/42/12/125104" @default.
- W2068750087 hasPublicationYear "2009" @default.
- W2068750087 type Work @default.
- W2068750087 sameAs 2068750087 @default.
- W2068750087 citedByCount "12" @default.
- W2068750087 countsByYear W20687500872012 @default.
- W2068750087 countsByYear W20687500872016 @default.
- W2068750087 countsByYear W20687500872019 @default.
- W2068750087 countsByYear W20687500872020 @default.
- W2068750087 countsByYear W20687500872022 @default.
- W2068750087 countsByYear W20687500872023 @default.
- W2068750087 crossrefType "journal-article" @default.
- W2068750087 hasAuthorship W2068750087A5013844777 @default.
- W2068750087 hasAuthorship W2068750087A5052560156 @default.
- W2068750087 hasAuthorship W2068750087A5058110173 @default.
- W2068750087 hasConcept C123671423 @default.
- W2068750087 hasConcept C138230450 @default.
- W2068750087 hasConcept C171250308 @default.
- W2068750087 hasConcept C191897082 @default.
- W2068750087 hasConcept C192562407 @default.
- W2068750087 hasConcept C2779227376 @default.
- W2068750087 hasConcept C49040817 @default.
- W2068750087 hasConcept C504270822 @default.
- W2068750087 hasConcept C79794668 @default.
- W2068750087 hasConceptScore W2068750087C123671423 @default.
- W2068750087 hasConceptScore W2068750087C138230450 @default.
- W2068750087 hasConceptScore W2068750087C171250308 @default.
- W2068750087 hasConceptScore W2068750087C191897082 @default.
- W2068750087 hasConceptScore W2068750087C192562407 @default.
- W2068750087 hasConceptScore W2068750087C2779227376 @default.
- W2068750087 hasConceptScore W2068750087C49040817 @default.
- W2068750087 hasConceptScore W2068750087C504270822 @default.
- W2068750087 hasConceptScore W2068750087C79794668 @default.
- W2068750087 hasIssue "12" @default.
- W2068750087 hasLocation W20687500871 @default.
- W2068750087 hasOpenAccess W2068750087 @default.
- W2068750087 hasPrimaryLocation W20687500871 @default.
- W2068750087 hasRelatedWork W2023167738 @default.
- W2068750087 hasRelatedWork W2029496122 @default.
- W2068750087 hasRelatedWork W2053664353 @default.
- W2068750087 hasRelatedWork W2058676402 @default.
- W2068750087 hasRelatedWork W2078011656 @default.
- W2068750087 hasRelatedWork W2092009779 @default.
- W2068750087 hasRelatedWork W2097673794 @default.
- W2068750087 hasRelatedWork W2139871202 @default.
- W2068750087 hasRelatedWork W2360880627 @default.
- W2068750087 hasRelatedWork W2752947955 @default.
- W2068750087 hasVolume "42" @default.
- W2068750087 isParatext "false" @default.
- W2068750087 isRetracted "false" @default.
- W2068750087 magId "2068750087" @default.
- W2068750087 workType "article" @default.