Lutetium-doped EuO films grown by molecular-beam epitaxy

Journal Article · Mon May 28 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4723570· OSTI ID:22025572

Melville, A; Heeg, T ^[1]; Mairoser, T; Schmehl, A ^[2]; Shai, D E; Monkman, E J; Harter, J W ^[3]; Hollaender, B; Schubert, J ^[4]; Shen, K M ^[3]; Mannhart, J ^[5]; Schlom, D G ^[1]

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1. Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853 (United States)
2. Zentrum fuer elektronische Korrelationen und Magnetismus, Universitaet Augsburg, Universitaetsstrasse 1, D-86159 Augsburg (Germany)
3. Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853 (United States)
4. Peter Gruenberg Institute, PGI 9-IT, JARA-FIT, Research Centre Juelich, D-52425 Juelich (Germany)
5. Max Planck Institute for Solid State Research, D-70569 Stuttgart (Germany)

The effect of lutetium doping on the structural, electronic, and magnetic properties of epitaxial EuO thin films grown by reactive molecular-beam epitaxy is experimentally investigated. The behavior of Lu-doped EuO is contrasted with doping by lanthanum and gadolinium. All three dopants are found to behave similarly despite differences in electronic configuration and ionic size. Andreev reflection measurements on Lu-doped EuO reveal a spin-polarization of 96% in the conduction band, despite non-magnetic carriers introduced by 5% lutetium doping.

• OSTI ID: 22025572
• Journal Information: Applied Physics Letters, Vol. 100, Issue 22; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
CHARGE CARRIERS
CRYSTAL GROWTH
CURIE POINT
DOPED MATERIALS
ELECTRONIC STRUCTURE
EUROPIUM OXIDES
FERROMAGNETIC MATERIALS
GADOLINIUM
KERR EFFECT
LANTHANUM
LAYERS
LUTETIUM
MAGNETIC PROPERTIES
MOLECULAR BEAM EPITAXY
POLARIZATION
REFLECTION
SPIN ORIENTATION
THIN FILMS