Tuning magnetic response of epitaxial iron-silicide nanoislands by controlled self-assembled growth

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
I. Goldfarb ◽  
Y. Camus ◽  
M. Dascalu ◽  
F. Cesura ◽  
R. Chalasani ◽  
...  
Keyword(s):  
Iron Silicide ◽  
Magnetic Response ◽  
Self Assembled

scholarly journals Tuning the Size, Shape and Density of γ′-GayFe4−yN Nanocrystals Embedded in GaN

Crystals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 50 ◽  
Author(s):  
Andrea Navarro-Quezada ◽  
Thibaut Devillers ◽  
Tian Li ◽  
Alberta Bonanni
Keyword(s):  
Growth Parameters ◽  
Vapour Phase ◽  
Spatial Density ◽  
Magnetic Response ◽  
Vapour Phase Epitaxy ◽  
Size And Shape ◽  
On Demand ◽  
Metalorganic Vapour Phase Epitaxy ◽  
Self Assembled ◽  
Magnetic Nanocrystal

Phase-separated semiconductor systems hosting magnetic nanocrystal (NCs) are attracting increasing attention, due to their potential as spintronic elements for the next generation of devices. Owing to their morphology- and stoichiometry-dependent magnetic response, self-assembled γ ’-Ga y Fe 4 − y N NCs embedded in a Fe δ -doped GaN matrix, are particularly versatile. It is studied and reported here, how the tuning of relevant growth parameters during the metalorganic vapour phase epitaxy process affects the crystalline arrangement, size, and shape of these self-assembled nanostructures. In particular, it is found that the Ga-flow provided during the δ -doping, determines the amount of Fe incorporated into the layers and the spatial density of the NCs. Moreover, the in-plane dimensions of the NCs can also be controlled via the Ga-flow, conditioning the aspect-ratio of the embedded nanostructures. These findings are pivotal for the design of nanocrystal arrays with on-demand size and shape, essential requirements for the implementation into functional devices.

Impacts of structural asymmetry on the magnetic response of excitons and biexcitons in single self-assembled In(Ga)As quantum rings

2009 ◽  
Vol 80 (8) ◽  
Author(s):  
Ta-Chun Lin ◽  
Chia-Hsien Lin ◽  
Hong-Shi Ling ◽  
Ying-Jhe Fu ◽  
Wen-Hao Chang ◽  
...  
Keyword(s):  
Magnetic Response ◽  
Quantum Rings ◽  
Structural Asymmetry ◽  
Self Assembled

Self-Assembled Plasmonic Metamolecules Exhibiting Tunable Magnetic Response at Optical Frequencies

2017 ◽  
Vol 121 (29) ◽  
pp. 15915-15921 ◽  
Author(s):  
Marc R. Bourgeois ◽  
Alice T. Liu ◽  
Michael B. Ross ◽  
Jacob M. Berlin ◽  
George C. Schatz
Keyword(s):  
Magnetic Response ◽  
Self Assembled

scholarly journals Magnetic Response of Hydrothermally Prepared Self-Assembled Co3O4 Nano-platelets

2014 ◽  
Vol 44 (1) ◽  
pp. 1-5 ◽  
Author(s):  
M.A. Dar ◽  
S.H. Nam ◽  
J.Y. Kim ◽  
I. Ahmad ◽  
B.K. Cho ◽  
...  
Keyword(s):  
Magnetic Response ◽  
Self Assembled

scholarly journals Enhanced magnetic response of fluids using self-assembled petal-like iron oxide particles

2010 ◽  
Vol 96 (12) ◽  
pp. 121905 ◽  
Author(s):  
You-Hwan Son ◽  
Jung-Kun Lee ◽  
Yee Soong ◽  
Donald Martello ◽  
Minking Chyu
Keyword(s):  
Iron Oxide ◽  
Magnetic Response ◽  
Iron Oxide Particles ◽  
Oxide Particles ◽  
Self Assembled

scholarly journals Hydrogen-plasma-induced magnetocrystalline anisotropy ordering in self-assembled magnetic nanoparticle monolayers

2013 ◽  
Vol 4 ◽  
pp. 164-172
Author(s):  
Alexander Weddemann ◽  
Judith Meyer ◽  
Anna Regtmeier ◽  
Irina Janzen ◽  
Dieter Akemeier ◽  
...  
Keyword(s):  
Treatment Duration ◽  
Magnetic Nanoparticle ◽  
Magnetocrystalline Anisotropy ◽  
Hydrogen Plasma ◽  
Magnetic Moments ◽  
Hysteresis Loops ◽  
Magnetic Response ◽  
Two Dimensional ◽  
Spatial Aspect ◽  
Self Assembled

Self-assembled two-dimensional arrays of either 14 nm hcp-Co or 6 nm ε-Co particle components were treated by hydrogen plasma for various exposure times. A change of hysteretic sample behavior depending on the treatment duration is reported, which can be divided in two time scales: oxygen reduction increases the particle magnetization during the first 20 min, which is followed by an alteration of the magnetic response shape. The latter depends on the respective particle species. Based on the Landau–Lifshitz equations for a discrete set of magnetic moments, we propose a model that relates the change of the hysteresis loops to a dipole-driven ordering of the magnetocrystalline easy axes within the particle plane due to the high spatial aspect ratio of the system.

Self-Assembled FeCo/Gelatin Nanospheres with Rapid Magnetic Response and High Biomolecule-Loading Capacity

Small ◽  
2009 ◽  
pp. NA-NA ◽  
Author(s):  
Lijie Dong ◽  
Shuhua Liu ◽  
Haitao Gao ◽  
Ning Ding ◽  
Wolfgang Tremel ◽  
...  
Keyword(s):  
Magnetic Response ◽  
Loading Capacity ◽  
Self Assembled

Morphological and electrical properties of self-assembled iron silicide nanoparticles on Si(0 0 1) and Si(1 1 1) substrates

2015 ◽  
Vol 357 ◽  
pp. 573-582
Author(s):  
G. Molnár ◽  
L. Dózsa ◽  
R. Erdélyi ◽  
Z. Vértesy ◽  
Z. Osváth
Keyword(s):  
Electrical Properties ◽  
Iron Silicide ◽  
Self Assembled
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