Magnetic Properties of a Transverse Ising Nanoparticle
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We use the effective field theory with a probability distribution technique to investigate the magnetic properties of an antiferromagnetic Ising core/shell nanoparticle with a negative interlayer coupling core/shell in the presence of both the longitudinal and the transverse fields. Nearest-neighbor pair interactions are incorporated between the Ising spins in three parts that are core, core/shell, and surface shell. The effects of the external and the transverse fields and the exchange interactions between core/shell and in surface shell on the hysteresis loops and the susceptibility of the nanoparticle are examined. A number of interesting phenomena have been found.
KeywordsEffective field theory Antiferromagnetic nanoparticle Hysteresis loops Transverse field
This work has been initiated with the support of URAC: 08, the project RS: 02 (CNRST) and the Swedish Research Links programme dnr-348-2011-7264 and completed during a visit of A. A at the Max Planck Institut für Physik Komplexer Systeme Dresden, Germany. The authors would like to thank all the organizations.
- 2.Silva, A.C., Oliveira, T.R., Mamani, J.B., Malheiros, S.M.E., Malavolta, L., Pavon, L.F., Sibov, T.T., Amaro, E., Tannus, A., Vidoto, E.L.G., Martins, M.J., Santos, R.S., Gamarra, L.F.: International Journal of nanomedecine 6, 591 (2011)Google Scholar
- 23.Wang, H., Zhou, Y., Wang, E., Lin, D.L.: Chin. J. Phys. 39, 85 (2001)Google Scholar
- 24.Saber, M.: Chin. J. Phys. 35, 577 (1997)Google Scholar