Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies

M. J. Correia; W. Figueiredo; W. Schwarzacher

doi:10.1016/j.physleta.2014.09.028

Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies

M. J. Correia
, W. Figueiredo^*
, W. Schwarzacher

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

18 Citations (Scopus)

Abstract

We report in this study the effect of the competition between cubic and uniaxial anisotropies on the magnetic properties of magnetic nanoparticles. We have employed Monte Carlo simulations in our calculations and we have seen that the observed behavior is very different for the cases where easy uniaxial axes are completely random oriented or parallel to an external magnetic field. We have also calculated the effective energy barrier distribution probed during the isothermal magnetic relaxation and a two peak structure is observed only for a random orientation of uniaxial axes.

Original language	English
Pages (from-to)	3366-3371
Number of pages	6
Journal	Physics Letters A
Volume	378
Issue number	45
DOIs	https://doi.org/10.1016/j.physleta.2014.09.028
Publication status	Published - 3 Oct 2014

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title = "Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies",

abstract = "We report in this study the effect of the competition between cubic and uniaxial anisotropies on the magnetic properties of magnetic nanoparticles. We have employed Monte Carlo simulations in our calculations and we have seen that the observed behavior is very different for the cases where easy uniaxial axes are completely random oriented or parallel to an external magnetic field. We have also calculated the effective energy barrier distribution probed during the isothermal magnetic relaxation and a two peak structure is observed only for a random orientation of uniaxial axes.",

author = "Correia, \{M. J.\} and W. Figueiredo and W. Schwarzacher",

year = "2014",

month = oct,

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doi = "10.1016/j.physleta.2014.09.028",

language = "English",

volume = "378",

pages = "3366--3371",

journal = "Physics Letters A",

issn = "0375-9601",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies

AU - Correia, M. J.

AU - Figueiredo, W.

AU - Schwarzacher, W.

PY - 2014/10/3

Y1 - 2014/10/3

N2 - We report in this study the effect of the competition between cubic and uniaxial anisotropies on the magnetic properties of magnetic nanoparticles. We have employed Monte Carlo simulations in our calculations and we have seen that the observed behavior is very different for the cases where easy uniaxial axes are completely random oriented or parallel to an external magnetic field. We have also calculated the effective energy barrier distribution probed during the isothermal magnetic relaxation and a two peak structure is observed only for a random orientation of uniaxial axes.

AB - We report in this study the effect of the competition between cubic and uniaxial anisotropies on the magnetic properties of magnetic nanoparticles. We have employed Monte Carlo simulations in our calculations and we have seen that the observed behavior is very different for the cases where easy uniaxial axes are completely random oriented or parallel to an external magnetic field. We have also calculated the effective energy barrier distribution probed during the isothermal magnetic relaxation and a two peak structure is observed only for a random orientation of uniaxial axes.

UR - https://www.scopus.com/pages/publications/84908538053

U2 - 10.1016/j.physleta.2014.09.028

DO - 10.1016/j.physleta.2014.09.028

M3 - Article (Academic Journal)

AN - SCOPUS:84908538053

SN - 0375-9601

VL - 378

SP - 3366

EP - 3371

JO - Physics Letters A

JF - Physics Letters A

IS - 45

ER -

Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies

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PERIODIC 3-D NANOPARTICLE ARRAYS BY PROTEIN CRYSTALLIZATION

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Energy barrier distributions for magnetic nanoparticles with competing cubic and uniaxial anisotropies

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PERIODIC 3-D NANOPARTICLE ARRAYS BY PROTEIN CRYSTALLIZATION

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