Magnetoresistance in nanostructured Tb/Ti and Tb/Si multilayers
- Dpto. Electricidad y Electronica, Universidad del Pais Vasco (UPV-EHU), 48080 Bilbao (Spain)
- Ural State University A.M. Gorky, 620083 Ekaterinburg (Russian Federation)
- Center for Advanced Research and Technology, University of North Texas, Denton, Texas 76203-5017 (United States)
Magnetic, magnetoresistive and structural properties were studied for [Tb/Ti]{sub n} and [Tb/Si]{sub n} multilayers which were prepared by rf-sputtering. The thickness of the Tb layers varied from 1.5 to 12 nm. The thickness of 2 nm nonmagnetic spacers of Ti or Si was kept constant. Both anisotropic and isotropic magnetoresistance was observed in [Tb/Ti]{sub n} and [Tb/Si]{sub n} multilayers. A decrease in the thickness of the terbium layers led to a decrease in the anisotropic contribution to the total magnetoresistance. The negative isotropic magnetoresistanse in [Tb/Ti]{sub n} and [Tb/Si]{sub n} multilayers can be attributed to the giant magnetoresistance (GMR) and/or high field isotropic magnetoresistance. The structure of the samples of both types enabled the existence of the GMR effect.
- OSTI ID:
- 21538050
- Journal Information:
- Journal of Applied Physics, Vol. 109, Issue 2; Other Information: DOI: 10.1063/1.3544043; (c) 2011 American Institute of Physics; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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ANISOTROPY
CRYSTAL STRUCTURE
DEPOSITION
ELECTROMAGNETIC FIELDS
INTERACTIONS
LAYERS
MAGNETORESISTANCE
MATERIALS
NANOSTRUCTURES
SILICON
SPUTTERING
TERBIUM
THICKNESS
TITANIUM
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
METALS
PHYSICAL PROPERTIES
RARE EARTHS
SEMIMETALS
TRANSITION ELEMENTS