EMR searching of quantum behavior of magnetic γ-Fe2O3 nanoparticles encapsulated into poly(propylene imine) dendrimer
Abstract
The superparamagnetic γ-Fe2O3 nanoparticles (average diameter of 2.5 nm) encapsulated in poly(propylene imine) dendrimer have been investigated by electron magnetic resonance (EMR). EMR measurements have been recorded in perpendicular and parallel configurations in the wide temperature range (4.2-300 K). It has been shown that the model based on the spin value S = 30, corresponding to the total magnetic moment of the nanoparticle, can be used to interpret the experimental results and the proof of the quantum behavior of γ-Fe2O3 nanoparticles.
Supporting agencies: We gratefully acknowledge the financial support for this work by RAS Presidium program No. 24.
About the Authors
V. E. Vorobeva
Zavoisky Physical Technical Institute; Kazan Federal University
Russian Federation
Russian Federation
Sibirsky tract 10/7, Kazan 420029; Kremlevskaya 18, Kazan 420008
N. E. Domracheva
Zavoisky Physical Technical Institute
Russian Federation
Russian Federation
Sibirsky tract 10/7, Kazan 420029
M. S. Gruzdev
G.A. Krestov Institute of Solution Chemistry RAS
Russian Federation
Russian Federation
Akademicheskaja 1, Ivanovo 153045
References
1. Lu A.H., Schmidt W., Matoussevitch N., Bonnemann H., Spliethoff B., Tesche B, Bill E., Kiefer W., Schuth F. Angew. Chem., Int. Ed. 43, 4303 (2004)
2. Hyeon T. Chem. Commun. 2003, 927 (2003)
3. Nanomagnetism and Spintronics, edited by T. Shinjo (Elsevier, Amsterdam, 2009)
4. Laurent S., Forge D., Port M., Roch A., Robic C, Elst L., Muller R. Chem. Rev. 108, 2064 (2008)
5. Chikazumi S., Taketomi S., Ukita M., Mizukami M., Miyajima H., Setogawa M., Kurihara Y, J. Magn. Magn. Mater. 65, 245 (1987)
6. Gupta A.K., Gupta M. Biomaterials 26, 3995 (2005)
7. Magnetism in Medicine: A Handbook, edited by W. Andrä and H. Nowak (Wiley-VCH, Weinheim, 2007)
8. Fittipaldi M., Sorace L., Barra A.L., Sangregorio C., Sessoli R., Gatteschi D., Phys. Chem. Chem. Phys. 11, 6555 (2009)
9. Wernsdorfer W. Adv. Chem. Phys. 118, 99 (2001)
10. Noginova N., Weaver T., Giannelis E.P., Bourlinos A.B., Atsarkin V.A., Demidov V.V. Phys. Rev. B 77, 014403 (2008)
11. Fittipaldi M., Innocenti C., Ceci P., Sangregorio C., Castelli L., Sorace L., Gatteschi D. Phys. Rev. B 83, 104409 (2011)
12. Domracheva N., Pyataev A., Manapov R., Gruzdev M. ChemPhysChem 12, 3009 (2011)
13. Raikher Yu.L., Stepanov V.I. J. Magn. Magn. Mater. 316, 417 (2007)
14. Fittipaldi M., Mercatelli R., Sottini S., Ceci P., Falvo E., Gatteschi D. Phys. Chem. Chem. Phys. 18, 3591 (2016)
Review
For citations:
Vorobeva V.E., Domracheva N.E., Gruzdev M.S. EMR searching of quantum behavior of magnetic γ-Fe2O3 nanoparticles encapsulated into poly(propylene imine) dendrimer. Magnetic Resonance in Solids. 2016;18(2):16208 (4 pp.).
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