Sökning: id:"swepub:oai:research.chalmers.se:ada2e451-41a1-44ed-bfe9-a7df78315058" >
Epitaxial growth an...
Epitaxial growth and characterization of (001) [NiFe/M]20 (M = Cu, CuPt and Pt) superlattices
-
- Kateb, Movaffaq, 1985 (författare)
- Háskóli Íslands,University of Iceland,Chalmers tekniska högskola,Chalmers University of Technology,Univ Iceland, Sci Inst, Dunhaga 3, IS-107 Reykjavik, Iceland.;Chalmers Univ Technol, Dept Phys, Condensed Matter & Mat Theory Div, S-41296 Gothenburg, Sweden.
-
- Gudmundsson, Jon Tomas, 1965- (författare)
- KTH,Rymd- och plasmafysik,Univ Iceland, Sci Inst, Dunhaga 3, IS-107 Reykjavik, Iceland.,Háskóli Íslands,University of Iceland,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
-
- Ingvarsson, Snorri (författare)
- Háskóli Íslands,University of Iceland,Univ Iceland, Sci Inst, Dunhaga 3, IS-107 Reykjavik, Iceland.
-
(creator_code:org_t)
- Elsevier BV, 2023
- 2023
- Engelska.
-
Ingår i: Surfaces and Interfaces. - : Elsevier BV. - 2468-0230. ; 38
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- We present optimization of [(15 Å) Ni80Fe20/(5 Å) M]20 single crystal multilayers on (001) MgO substrates, with M being Cu, Cu50Pt50 and Pt. These superlattices were characterized by high resolution X-ray reflectivity (XRR) and diffraction (XRD) as well as polar mapping of important crystal planes. It is shown that cube on cube epitaxial relationship can be obtained when depositing at substrate temperature of 100 °C regardless of the lattice mismatch (5% and 14% for Cu and Pt, respectively). At lower substrate temperatures poly-crystalline multilayers were obtained while at higher substrate temperatures {111} planes appear at ∼10° off normal to the film plane. It is also shown that as the epitaxial strain increases, the easy magnetization axis rotates towards the direction that previously was assumed to be harder, i.e. from [110] to [100], and eventually further increase in the strain makes the magnetic hysteresis loops isotropic in the film plane. Higher epitaxial strain is also accompanied with increased coercivity values. Thus, the effect of epitaxial strain on the magnetocrystalline anisotropy is much larger than what was observed previously in similar, but polycrystalline samples with uniaxial anisotropy (Kateb et al. 2021).
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- NiFe
- Microstructure
- Substrate temperature
- Superlattice
- Magnetic anisotropy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas