The influence of finite size and shape anisotropy on exchange bias: A study of patterned Co/CoO nanostructures

2006 ◽  
Vol 304 (1) ◽  
pp. 14-18 ◽  
Author(s):  
K. Temst ◽  
E. Popova ◽  
H. Loosvelt ◽  
M.J. Van Bael ◽  
S. Brems ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Finite Size ◽  
Shape Anisotropy ◽  
Size And Shape

scholarly journals On the Reaction Pathways and Growth Mechanisms of LiNbO3 Nanocrystals from the Non-Aqueous Solvothermal Alkoxide Route

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 154
Author(s):  
Mathias Urbain ◽  
Florian Riporto ◽  
Sandrine Beauquis ◽  
Virginie Monnier ◽  
Jean-Christophe Marty ◽  
...  
Keyword(s):  
Colloidal Stability ◽  
Formation Rate ◽  
Reaction Medium ◽  
Precursor Solution ◽  
Medium Composition ◽  
Shape Anisotropy ◽  
Reaction Pathways ◽  
Growth Mechanisms ◽  
Shape Distribution ◽  
Size And Shape

Phase-pure, highly crystalline sub-50 nm LiNbO3 nanocrystals were prepared from a non-aqueous solvothermal process for 72 h at 230 °C and a commercial precursor solution of mixed lithium niobium ethoxide in its parent alcohol. A systematic variation of the reaction medium composition with the addition of different amounts of co-solvent including butanol, 1,3-propanediol, 1,4-butanediol, and 1,5-pentanediol resulted in the formation of nanocrystals of adjustable mean size and shape anisotropy, as demonstrated from XRD measurements and TEM imaging. Colloidal stability of ethanol- and water-based suspensions was evaluated from dynamic light scattering (DLS)/zeta potential studies and correlated with FTIR data. Thanks to the evolution in the nanocrystal size and shape distribution we observed, as well as to the available literature on the alkoxide chemistry, the reaction pathways and growth mechanisms were finally discussed with a special attention on the monomer formation rate, leading to the nucleation step. The polar, non-perovskite crystalline structure of LiNbO3 was also evidenced to play a major role in the nanocrystal shape anisotropy.

Vortex configurations in mesoscopic superconducting triangles: Finite-size and shape effects

2008 ◽  
Vol 83 (1) ◽  
pp. 17008 ◽  
Author(s):  
H. J. Zhao ◽  
V. R. Misko ◽  
F. M. Peeters ◽  
S. Dubonos ◽  
V. Oboznov ◽  
...  
Keyword(s):  
Finite Size ◽  
Size And Shape ◽  
Shape Effects

Size and shape dependence of the exchange-bias field in exchange-coupled ferrimagnetic bilayers

2005 ◽  
Vol 45 (2) ◽  
pp. 223-230 ◽  
Author(s):  
M. Ziese ◽  
R. Höhne ◽  
A. Bollero ◽  
H.-C. Semmelhack ◽  
P. Esquinazi ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Bias Field ◽  
Size And Shape ◽  
Exchange Bias Field ◽  
Shape Dependence

Effects of finite size and shape on scattering and thermodynamic quantities at 2d Ising critical points

1986 ◽  
Vol 166 (1) ◽  
pp. A40
Author(s):  
P. Kleban ◽  
G. Akinci ◽  
R. Hentschke ◽  
K.R. Brownstein
Keyword(s):  
Critical Points ◽  
Finite Size ◽  
Thermodynamic Quantities ◽  
Size And Shape

Vorticity of magnetic vortices controlled by exchange bias and shape anisotropy in polygonal nanomagnets

2021 ◽  
pp. 168334
Author(s):  
Renjie Gong ◽  
Xiangyu Meng ◽  
Yong Wang ◽  
Junqin Li ◽  
Jiefeng Cao ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Shape Anisotropy ◽  
Magnetic Vortices

Tailoring the exchange bias via shape anisotropy in ferromagnetic/antiferromagnetic exchange-coupled systems

2003 ◽  
Vol 67 (22) ◽  
Author(s):  
A. Hoffmann ◽  
M. Grimsditch ◽  
J. E. Pearson ◽  
J. Nogués ◽  
W. A. A. Macedo ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Shape Anisotropy ◽  
Coupled Systems ◽  
Antiferromagnetic Exchange
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