Cubic versus Spherical Magnetic Nanoparticles: The Role of Surface Anisotropy

2008 ◽  
Vol 130 (40) ◽  
pp. 13234-13239 ◽  
Author(s):  
G. Salazar-Alvarez ◽  
J. Qin ◽  
V. Šepelák ◽  
I. Bergmann ◽  
M. Vasilakaki ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Surface Anisotropy

scholarly journals Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Roxana-Alina One ◽  
Hélène Béa ◽  
Sever Mican ◽  
Marius Joldos ◽  
Pedro Brandão Veiga ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Random Access ◽  
Low Power Consumption ◽  
Surface Anisotropy ◽  
Magnetization Dynamics ◽  
Storage Density ◽  
Switching Regime ◽  
Major Interest ◽  
Out Of Plane

AbstractThe voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for spintronics due to its promising potential outcome: fast magnetization manipulation in magnetoresistive random access memories with enhanced storage density and very low power consumption. Using a macrospin approach, we carried out a thorough analysis of the role of the VCMA on the magnetization dynamics of nanostructures with out-of-plane magnetic anisotropy. Diagrams of the magnetization switching have been computed depending on the material and experiment parameters (surface anisotropy, Gilbert damping, duration/amplitude of electric and magnetic field pulses) thus allowing predictive sets of parameters for optimum switching experiments. Two characteristic times of the trajectory of the magnetization were analyzed analytically and numerically setting a lower limit for the duration of the pulses. An interesting switching regime has been identified where the precessional reversal of magnetization does not depend on the voltage pulse duration. This represents a promising path for the magnetization control by VCMA with enhanced versatility.

ROLE OF NEUTROPHILS IN THE DELIVERY OF NANOPARTICLE INTO THE TUMOR

2020 ◽  
pp. 127-129
Author(s):  
V. Naumenko ◽  
V. Chekhonin
Keyword(s):  
Magnetic Nanoparticles ◽  
Intravital Microscopy ◽  
Tumor Tissue ◽  
Neutrophil Extravasation

Mechanisms of liposomes and magnetic nanoparticles accumulation in the tumor tissue were shown to be associated with neutrophils. The intravital microscopy allowed to visualize the transfer of magnetic nanoparticles by neutrophils that captured these nanoparticles, while liposomes accumulate in the tissue via micro- and macroleakages appearing at sites of neutrophil extravasation.

Magnetic Nanoparticles: Quantitative Recovery of Magnetic Nanoparticles from Flowing Blood: Trace Analysis and the Role of Magnetization (Adv. Funct. Mater. 39/2013)

2013 ◽  
Vol 23 (39) ◽  
pp. 4873-4873
Author(s):  
Christoph M. Schumacher ◽  
Inge K. Herrmann ◽  
Stephanie B. Bubenhofer ◽  
Sabrina Gschwind ◽  
Ann-Marie Hirt ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Trace Analysis ◽  
Flowing Blood ◽  
Quantitative Recovery

scholarly journals Surface anisotropy broadening of the energy barrier distribution in magnetic nanoparticles

2008 ◽  
Vol 19 (47) ◽  
pp. 475704 ◽  
Author(s):  
N Pérez ◽  
P Guardia ◽  
A G Roca ◽  
M P Morales ◽  
C J Serna ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Energy Barrier ◽  
Surface Anisotropy ◽  
Barrier Distribution
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