Search: WFRF:(Poulopoulos Panagiotis) >
Naturally Produced ...
Naturally Produced Co/CoO Nanocrystalline Magnetic Multilayers : Structure and Inverted Hysteresis
-
- Santarossa, Francesca (author)
- Univ Patras, Sch Engn, Lab High Tech Mat, Patras 26504, Greece.;Univ Patras, Dept Mat Sci, Patras 26504, Greece.
-
- Pappas, Spyridon D. (author)
- Uppsala universitet,Materialfysik
-
- Delimitis, Andreas (author)
- Ctr Res & Technol Hellas CERTH, CPERI, Thessaloniki 57001, Greece.
-
show more...
-
- Sousanis, Andreas (author)
- Univ Patras, Sch Engn, Lab High Tech Mat, Patras 26504, Greece.;Univ Patras, Dept Mat Sci, Patras 26504, Greece.
-
- Poulopoulos, Panagiotis (author)
- Univ Patras, Sch Engn, Lab High Tech Mat, Patras 26504, Greece.;Univ Patras, Dept Mat Sci, Patras 26504, Greece.
-
show less...
-
Univ Patras, Sch Engn, Lab High Tech Mat, Patras 26504, Greece;Univ Patras, Dept Mat Sci, Patras 26504, Greece. Materialfysik (creator_code:org_t)
- American Scientific Publishers, 2016
- 2016
- English.
-
In: Journal of Nanoscience and Nanotechnology. - : American Scientific Publishers. - 1533-4880 .- 1533-4899. ; 16:5, s. 4960-4967
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Cobalt-based multilayers with excellent sequencing are grown via radiofrequency magnetron sputtering with the use of one Co target and natural oxidation. The Co layers are continuous, fully textured {111} and have the face centered cubic structure. At the end of deposition of each Co layer air is let to flow into the vacuum chamber via a fine (leak) valve. The top of Co is oxidized. The oxidized layers consist of cubic CoO crystallites. Near the film surface hexagonal Co(OH)(2) is also detected. Magneto-optical Kerr effect hysteresis loops show in-plane magnetized films. The magnetic saturation field in the out-of-plane measurements is large exceeding 12 kOe. This observation supports indirectly the fact that Co is face centered cubic; if it was c-axis textured hexagonal the magnetocrystalline anisotropy would be large resulting in smaller values of the saturation field. As the Co-layer thickness decreases the in-plane loops show reduced remanence, slow approach to magnetic saturation and the out-of-plane loops show inverted hysteresis and/or crossing loop features with sizeable remanence. The effects are discussed with respect to the enhanced orbital magnetic moment of Co and the antiferromagnetic coupling between Co spins at the Co/CoO interface.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Magnetic Multilayers
- Cobalt
- Cobalt Oxide
- Inverted Hysteresis
- Thin Films
- Sputtering
- Natural Oxidation
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database