+44-1518-081136At the interface between nitride compounds and quantum materials
2nd International Conference on Biomaterials and Nanomaterials & Materials Physics and Materials Science
May 20-21, 2019 | Vienna, Austria
Alberta Bonanni
Johannes Kepler University Linz, Austria
Posters & Accepted Abstracts : Mater Sci Nanotechnol
Abstract:
Semiconductor nitride compounds own their relevance,
not only to state-of-the-art applications in opto- and
high-power-electronics, but also to a number of features
particularly attractive for spintronics and spin-orbitronics,
enabling, e.g., spin-charge interconversion via spin-orbit
coupling associated with inversion asymmetry and leading to
a sizable Rashba field and piezoelectric properties. Through
the addition of magnetic dopants fostering the formation of
magnetic complexes or driving the system to the state of a
condensed magnetic semiconductor, these materials open
wide perspectives in both fundamental and applicationoriented
research.
An overview is provided here on how, by controlling the
fabrication parameters and establishing a comprehensive
protocol of characterization involving also synchrotronradiation-
based methods, we have unraveled and can now
control a number of relevant features of these systems.
Particularly significant in this context is the generation of
pure spin current at room temperature in nitride-based
bilayers, pointing at these systems as efficient spin current
generators. Besides controlling the self-aggregation and
performance of embedded functional magnetic nanocrystals
and of optically active complexes, we have proved that the
magnetization of dilute III-nitrides doped with transition
metals may be controlled electrically. In this way, the
piezoelectricity of wurtzite semiconductors and electrical
magnetization switching have been bridged. Prospects
for proximity-induced topological superconductivity in
heterostructures combining graded and Rashba III-nitrides
with layered s-wave superconductors are also discussed.
Biography:
E-mail:
alberta.bonanni@jku.atPDF HTML