Growth and properties of epitaxial GdN

Journal Article · Tue Sep 15 00:00:00 EDT 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3211290· OSTI ID:21361841

Ludbrook, B M; Kuebel, M; Ruck, B J; Preston, A R. H.; Trodahl, H J ^[1]; Farrell, I L; Reeves, R J; Durbin, S M ^[2]; Ranno, L ^[3]

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1. MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University, P.O. Box 600, Wellington 6140 (New Zealand)
2. MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Canterbury, Private Bag 4800, Christchurch 8140 (New Zealand)
3. Institut Neel, CNRS/UJF, BP 166, 38042 Grenoble Cedex 9 (France)

Epitaxial gadolinium nitride films with well-oriented crystallites of up to 30 nm have been grown on yttria-stabilized zirconia substrates using a plasma-assisted pulsed laser deposition technique. We observe that the epitaxial GdN growth proceeds on top of a gadolinium oxide buffer layer that forms via reaction between deposited Gd and mobile oxygen from the substrate. Hall effect measurements show the films are electron doped to degeneracy, with carrier concentrations of 4x10{sup 20} cm{sup -3}. Magnetic measurements establish a T{sub C} of 70 K with a coercive field that can be tuned from 200 Oe to as low as 10 Oe.

• OSTI ID: 21361841
• Journal Information: Journal of Applied Physics, Vol. 106, Issue 6; Other Information: DOI: 10.1063/1.3211290; (c) 2009 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARRIER DENSITY
COERCIVE FORCE
CRYSTAL GROWTH
DOPED MATERIALS
ENERGY BEAM DEPOSITION
EPITAXY
FILMS
GADOLINIUM NITRIDES
GADOLINIUM OXIDES
HALL EFFECT
LASER RADIATION
LAYERS
PLASMA
PULSED IRRADIATION
SUBSTRATES
YTTRIUM OXIDES
CHALCOGENIDES
CRYSTAL GROWTH METHODS
DEPOSITION
ELECTROMAGNETIC RADIATION
GADOLINIUM COMPOUNDS
IRRADIATION
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
RADIATIONS
RARE EARTH COMPOUNDS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS