scholarly journals Three dimensional magnetic nanowires grown by focused electron-beam induced deposition

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Amalio Fernández-Pacheco ◽  
Luis Serrano-Ramón ◽  
Jan M. Michalik ◽  
M. Ricardo Ibarra ◽  
José M. De Teresa ◽  
...  
Keyword(s):  
Electron Beam ◽  
Three Dimensional ◽  
Magnetic Nanowires ◽  
Electron Beam Induced Deposition

Creation of Patterned Gold Nanostructures via Electron-Beam-Induced Deposition

2013 ◽  
Vol 1546 ◽  
Author(s):  
Anastasia V. Riazanova ◽  
Johannes J. L. Mulders ◽  
Lyubov M. Belova
Keyword(s):  
Electron Beam ◽  
Three Dimensional ◽  
Area Ratio ◽  
Ex Situ ◽  
Geometrical Shape ◽  
Local Electron ◽  
Post Annealing ◽  
Treatment Conditions ◽  
Heat Treated ◽  
Electron Beam Induced Deposition

ABSTRACTOne of the methods to grow nanoscale three-dimensional (3D) Au patterns is to perform local electron-beam-induced deposition (EBID) using the Me2Au(acac) precursor inside the chamber of a scanning electron microscope (SEM). However, due to the organometallic nature of the chemical, the concentration of the metallic constituent in the as-deposited structure is dramatically low, at around 10 at. % of Au. Ex-situ post-annealing of Me2Au(acac) EBIDs is a very promising purification approach, resulting in an Au content of > 92 at. % after annealing at 600 °C. However, in most of the cases it also distorts the geometrical shape of the heat-treated structure, preserving of which is essential for the application. In this paper we present a systematic study of the dependence between the annealing parameters and resulting purity in combination with the shape of the Au structure. Optimized heat treatment conditions for the creation of well-purified high aspect ratio Au pillar array are presented; and for planar continuous structures, the importance of the parameter height to area ratio is identified.

scholarly journals Pattern generation for direct-write three-dimensional nanoscale structures via focused electron beam induced deposition

2018 ◽  
Vol 9 ◽  
pp. 2581-2598 ◽  
Author(s):  
Lukas Keller ◽  
Michael Huth
Keyword(s):  
Electron Beam ◽  
3D Structure ◽  
Three Dimensional ◽  
Pattern Generation ◽  
Proximity Effects ◽  
Writing Strategies ◽  
Direct Write ◽  
Nanoscale Structures ◽  
Geometrical Description ◽  
Electron Beam Induced Deposition

Fabrication of three-dimensional (3D) nanoarchitectures by focused electron beam induced deposition (FEBID) has matured to a level that highly complex and functional deposits are becoming available for nanomagnetics and plasmonics. However, the generation of suitable pattern files that control the electron beam’s movement, and thereby reliably map the desired target 3D structure from a purely geometrical description to a shape-conforming 3D deposit, is nontrivial. To address this issue we developed several writing strategies and associated algorithms implemented in C++. Our pattern file generator handles different proximity effects and corrects for height-dependent precursor coverage. Several examples of successful 3D nanoarchitectures using different precursors are presented that validate the effectiveness of the implementation.

Focused-electron-beam-induced deposition of freestanding three-dimensional nanostructures of pure coalesced copper crystals

2002 ◽  
Vol 81 (17) ◽  
pp. 3245-3247 ◽  
Author(s):  
I. Utke ◽  
A. Luisier ◽  
P. Hoffmann ◽  
D. Laub ◽  
P. A. Buffat
Keyword(s):  
Electron Beam ◽  
Three Dimensional ◽  
Electron Beam Induced Deposition ◽  
Copper Crystals

Magnetic nanowires grown by focused electron beam-induced deposition

2015 ◽  
pp. 147-171
Author(s):  
A. Fernández-Pacheco ◽  
L.E. Serrano-Ramón ◽  
R. Córdoba ◽  
M.R. Ibarra ◽  
J.M. De Teresa
Keyword(s):  
Electron Beam ◽  
Magnetic Nanowires ◽  
Electron Beam Induced Deposition

scholarly journals Influence of the shape and surface oxidation in the magnetization reversal of thin iron nanowires grown by focused electron beam induced deposition

2015 ◽  
Vol 6 ◽  
pp. 1319-1331 ◽  
Author(s):  
Luis A Rodríguez ◽  
Lorenz Deen ◽  
Rosa Córdoba ◽  
César Magén ◽  
Etienne Snoeck ◽  
...  
Keyword(s):  
Electron Beam ◽  
Magnetization Reversal ◽  
Surface Oxidation ◽  
Surface Oxide Layer ◽  
Magnetic Nanowires ◽  
Micromagnetic Simulations ◽  
Transmission Electron ◽  
Fe Content ◽  
Electron Beam Induced Deposition ◽  
Iron Nanowires

Iron nanostructures grown by focused electron beam induced deposition (FEBID) are promising for applications in magnetic sensing, storage and logic. Such applications require a precise design and determination of the coercive field (H C), which depends on the shape of the nanostructure. In the present work, we have used the Fe2(CO)9 precursor to grow iron nanowires by FEBID in the thickness range from 10 to 45 nm and width range from 50 to 500 nm. These nanowires exhibit an Fe content between 80 and 85%, thus giving a high ferromagnetic signal. Magneto-optical Kerr characterization indicates that H C decreases for increasing thickness and width, providing a route to control the magnetization reversal field through the modification of the nanowire dimensions. Transmission electron microscopy experiments indicate that these wires have a bell-type shape with a surface oxide layer of about 5 nm. Such features are decisive in the actual value of H C as micromagnetic simulations demonstrate. These results will help to make appropriate designs of magnetic nanowires grown by FEBID.

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