scholarly journals Influence of point defects on magnetic vortex structures

2004 ◽  
Vol 95 (11) ◽  
pp. 6708-6710 ◽  
Author(s):  
M. Rahm ◽  
R. Höllinger ◽  
V. Umansky ◽  
D. Weiss
Keyword(s):  
Point Defects ◽  
Vortex Structures ◽  
Magnetic Vortex

scholarly journals Efficient generation of electron Bessel beams using generic magnetic vortex structures

2016 ◽  
pp. 723-724
Author(s):  
Changlin Zheng ◽  
Timothy C Petersen ◽  
Holm Kirmse ◽  
Wolfgang Neumann ◽  
Joanne Etheridge
Keyword(s):  
Vortex Structures ◽  
Magnetic Vortex ◽  
Bessel Beams ◽  
Efficient Generation

scholarly journals Stochastic formation of magnetic vortex structures in asymmetric disks triggered by chaotic dynamics

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Mi-Young Im ◽  
Ki-Suk Lee ◽  
Andreas Vogel ◽  
Jung-Il Hong ◽  
Guido Meier ◽  
...  
Keyword(s):  
Chaotic Dynamics ◽  
Vortex Structures ◽  
Magnetic Vortex

Nonadiabatic spin-transfer torque of magnetic vortex structures in a permalloy square

2014 ◽  
Vol 89 (17) ◽  
Author(s):  
Stefan Rößler ◽  
Sebastian Hankemeier ◽  
Benjamin Krüger ◽  
Felix Balhorn ◽  
Robert Frömter ◽  
...  
Keyword(s):  
Vortex Structures ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetic Vortex

scholarly journals Direct observation of the thermal demagnetization of magnetic vortex structures in nonideal magnetite recorders

2016 ◽  
Vol 43 (16) ◽  
pp. 8426-8434 ◽  
Author(s):  
Trevor P. Almeida ◽  
Adrian R. Muxworthy ◽  
András Kovács ◽  
Wyn Williams ◽  
Leslei Nagy ◽  
...  
Keyword(s):  
Direct Observation ◽  
Vortex Structures ◽  
Magnetic Vortex ◽  
Thermal Demagnetization

Direct imaging of distorted vortex structures and magnetic vortex annihilation processes in ferromagnetic/antiferromagnetic disk structures

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Sri Sai Phani Kanth Arekapudi ◽  
Benny Böhm ◽  
Lakshmi Ramasubramanian ◽  
Fabian Ganss ◽  
Peter Heinig ◽  
...  
Keyword(s):  
Vortex Structures ◽  
Magnetic Vortex ◽  
Direct Imaging

scholarly journals Three-dimensional Character of the Magnetization Dynamics in Magnetic Vortex Structures: Hybridization of Flexure Gyromodes with Spin Waves

2016 ◽  
Vol 117 (3) ◽  
Author(s):  
Matthias Noske ◽  
Hermann Stoll ◽  
Manfred Fähnle ◽  
Ajay Gangwar ◽  
Georg Woltersdorf ◽  
...  
Keyword(s):  
Spin Waves ◽  
Three Dimensional ◽  
Vortex Structures ◽  
Magnetic Vortex ◽  
Magnetization Dynamics

Microstructural Evolution in Reduced TiO2

1981 ◽  
Vol 39 ◽  
pp. 74-75
Author(s):  
W. T. Donlon ◽  
S. Shinozaki ◽  
E. M. Logothetis ◽  
W. Kaizer
Keyword(s):  
Microstructural Evolution ◽  
Point Defects ◽  
Extended Defects ◽  
Small Deviations ◽  
Controlled Atmospheres ◽  
Limited Solubility ◽  
Thin Foils ◽  
Heat Treated ◽  
Porous Polycrystalline ◽  
Crystallographic Shear

Since point defects have a limited solubility in the rutile (TiO2) lattice, small deviations from stoichiometry are known to produce crystallographic shear (CS) planes which accomodate local variations in composition. The material used in this study was porous polycrystalline TiO2 (60% dense), in the form of 3mm. diameter disks, 1mm thick. Samples were mechanically polished, ion-milled by conventional techniques, and initially examined with the use of a Siemens EM102. The electron transparent thin foils were then heat-treated under controlled atmospheres of CO/CO2 and H2 and reexamined in the same manner.The “as-received” material contained mostly TiO2 grains (∼5μm diameter) which had no extended defects. Several grains however, aid exhibit a structure similar to micro-twinned grains observed in reduced rutile. Lattice fringe images (Fig. 1) of these grains reveal that the adjoining layers are not simply twin related variants of a single TinO2n-1 compound. Rather these layers (100 - 250 Å wide) are alternately comprised of stoichiometric TiO2 (rutile) and reduced TiO2 in the form of Ti8O15, with the Ti8O15 layers on either side of the TiO2 being twin related.

Sign in / Sign up

Export Citation Format

Share Document