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Title: Magnetic, transport, and structural properties of SrRuO{sub 3} thin films

Thin films of the oxide ferromagnetic metal SrRuO{sub 3} (SRO) are studied, in view of their potential use within oxide-based spin electronic devices. Here, their epitaxial growth on Si-compatible SrTiO{sub 3} substrates is demonstrated by pulsed laser deposition. Detail on their initial, structural, magnetic, and magnetotransport characterisation is also provided. In particular, resistivity and Hall data are interpreted within a two/three carrier model, above T{sub C.} Below T{sub C}, some information about the anisotropy of the Fermi surface effective elipsoids (∼1:4) is recovered. The low-temperature saturation magnetisation approaches 1 μ{sub B}/Ru, with an uniaxial anisotropy of above 0.6 MJm{sup –3}. Despite its low T{sub C} = 160 K, and in view of its relatively low carrier mobility, it is reasoned that SRO could be utilized as the electrode layer in low-temperature all-oxide-MTJ (Magnetic Tunnel Junction) demonstrators and as a seed layer for other ferromagnetic oxides, at and above room temperature.
Authors:
 [1] ;  [2] ; ; ;  [1]
  1. School of Physics and CRANN, Trinity College, Dublin 2 (Ireland)
  2. (Poland)
Publication Date:
OSTI Identifier:
22273749
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ANISOTROPY; CARRIER MOBILITY; ENERGY BEAM DEPOSITION; EPITAXY; FERMI LEVEL; FERROMAGNETIC MATERIALS; LASER RADIATION; LAYERS; MAGNETIZATION; MAGNETORESISTANCE; PULSED IRRADIATION; RUTHENIUM OXIDES; SPIN; STRONTIUM TITANATES; SUBSTRATES; TEMPERATURE DEPENDENCE; THIN FILMS; TUNNEL EFFECT