Conveners
T3-8 Thin Films I (DSS-DCMMP) / Couches minces I (DSS-DPMCM)
- Mark Gallagher (Lakehead University)
Luca Corbellini
(Institut National de la Recherche Scientifique, Centre EMT, Varennes)
14/06/2016, 16:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
ε-Fe2O3 is a metastable intermediate phase of iron (III) oxide, between maghemite (γ-Fe2O3) and hematite (α-Fe2O3). Epsilon ferrite has been investigated essentially because of its ferrimagnetic ordering with a Curie temperature of circa 500 K. However, given its orthorhombic crystal structure that belongs to the non-centrosymmetric and polar space group *Pna21*, it should exhibit...
Syed Bukhari
(Candian Nuclear Laboratories (CNL))
14/06/2016, 16:30
Surface Science / Science des surfaces (DSS)
Oral (Non-Student) / orale (non-étudiant)
Neutron Reflectometry (NR) is an ideal technique to study chemical reactions at surfaces and interfaces because it is a non-destructive technique which can determine in-situ the chemical profile in a film with nanometre resolution. Therefore, NR can provide information on the metal and oxide layer thickness and the changing interfaces between metal and oxide layer as well as oxide layer and an...
Dr
Syed Bukhari
(Canadian Nuclear Laboratories)
14/06/2016, 16:45
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
It is a common fact about alloys that surface chemical composition varies from the bulk in terms of elemental ratio and chemical state of the elements which can affect their material performances. That’s why deposition of alloy films is very challenging. We prepared CuNi (90/10) alloy thin films by D.C. magnetron sputtering on Si(111) substrates and studied the effect of deposition times and...
Jean-Michel Guay
(University of Ottawa)
14/06/2016, 17:00
Surface Science / Science des surfaces (DSS)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We report the creation of angle independent colors on silver due to plasmonic effects arising from random nanoparticle distributions induced by picosecond laser exposure. The color is determined by the total accumulated fluence on the surface. This is valid for all combinations of laser parameters producing the same total accumulated fluence. Both spectral and extra-spectral colors can be...
John Wei
(University of Toronto)
14/06/2016, 17:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Non-Student) / orale (non-étudiant)
Thin films of transition-metal oxides, by virtue of their high surface-to-volume ratio, tend to have very different thermodynamic phase stability than in bulk form. When these films are grown epitaxially on perovskite substrates, the heteroepitaxial mismatch can also induce strong interfacial strains resulting in intergrowths of novel lattice defects [1]. We apply these two concepts of...
