Engineering of magnetic properties using ultrathin metallic structures prepared by Molecular Beam Epitaxy
Article Abstract:
Magnetic properties have been engineered through the use of ultrathin metallic structures prepared by Molecular Beam Epitaxy. The effect of interface magnetostriction and interface magnetic anisotropy have been described based on a given model. The change in the sign of the interface anisotropy coming from replacing copper atoms with palladium atoms is caused in the main by the enhanced role of the spin-orbit interaction in the cobalt-palladium interaction and in the tendency of palladium to pick up significant magnetic moment near ferromagnetic atoms. Interface lattice separations have an important role. The balance between the two magnetoelastic terms determines the total magnetoelastic contribution to the interface energy.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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Optical and electrical properties of fluorene-based pi-conjugated polymers
Article Abstract:
Putting alternating thiophene and phenyl moieties into fluorine-based pi-conjugated polymers has made possible preparation of photoactive and electroactive materials that can be tuned and processed. The copolymers from fluorines have been made from palladium-catalyzed Suzuki couplings and the electrical and optical properties studied. The polymers have reversible electroactivity when reduced and oxidized. Some emit strongly in the green region and in the blue region. The good electrical transport of n-type and p-type charge carriers and the excellent luminescence they have should together make development of efficient light-emitting devices possible.
Publication Name: Canadian Journal of Chemistry
Subject: Chemistry
ISSN: 0008-4042
Year: 1998
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