Experimental investigation on the magneto-optic effects of ferrofluids via dynamic measurements

Jamon, Damien; Donatini, Fabrice; Siblini, Ali; Royer, F.; Perzynski, R.; Cabuil, Valérie; Neveu, Sophie

doi:10.1016/j.jmmm.2008.10.038

Cited by 67 publications

(36 citation statements)

References 35 publications

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“…Magnetic nanoparticles (MNPs) which have been the most investigated materials are current research due to the their potential applications in a wide range of fields such as magnetic resonance imaging [1], magneto-optical devices [2][3][4], biomedical drug delivery [5,6] and gene delivery [7] and catalysts [8,9]. Among the various magnetic nanoparticles, spinel CoFe 2 O 4 and ZnFe 2 O 4 NPs have drawn recent interest with the aim to form stable nontoxic aqueous dispersion.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Kurtan

Erdemi

Baykal

et al. 2016

Ceramics International

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Section: Introductionmentioning

confidence: 99%

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Kurtan

Erdemi

Baykal

et al. 2016

Ceramics International

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“…The particles were not treated chemically, and water and mixed water-glycerol solutions were used as the carrier liquid. The viscosity of the carrier liquid, which governs the Brownian dynamics of the nanoparticle, 22 can be modified by varying the glycerol content in solution. The loss in ferrofluid magnetization was investigated by investigating the relationship between the apparent magnetization and carrier liquid viscosity.…”

Section: Introductionmentioning

confidence: 99%

Investigation into loss in ferrofluid magnetization

Gong

Lin

et al. 2014

AIP Advances

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Ferrofluids containing γ-Fe2O3/Ni2O3 nanoparticles (not chemically treated) were synthesized using water and mixed water–glycerol as carrier liquid and the ferrofluid viscosity was modified by varying the glycerol content in the carrier liquid. The apparent magnetization of the ferrofluids decreased with increasing glycerol content. The loss in magnetization is described by the ratio of effective magnetic volume fraction to physical volume fraction of nanoparticles in the ferrofluids as a characteristic parameter. We ascribe the loss to the formation of “dead aggregates” having a ring-like structure of closed magnetic flux rather than to any chemical reaction. Such dead aggregates exist in zero magnetic field and do not contribute to the magnetization in the low or high field regime, so that the effective magnetic volume fraction in the ferrofluids decrease. An increase in carrier liquid viscosity is similar to a weakening of the thermal effect, so the number of dead aggregates increases and the magnetization decreases in inverse proportion to the viscosity. This relationship between the apparent magnetization and ferrofluid carrier liquid viscosity can be termed the “viscomagnetic effect”.

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“…Furthermore, it has been shown as well that Faraday rotation can happen in a railroad like-way. This quantization is correlated to the magnetic moment tunneling of resonance in the case of smaller size-quantum particles [25]. The theory of no-reciprocity demonstrates that the rotation direction of the polarized light depends on only the magnetic field direction [26].…”

Section: Resultsmentioning

confidence: 92%

Optical Properties of Fe₃O₄Magnetic Fluid from Iron Sand

Puspitaningrum

Taufiq

Hidayat

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Nowadays, a high sensitive sensor for the magnetic field has become an essential tool that vastly desired in several fields, especially in biomedical application. Therefore, the development of preparing material for the magnetic sensor becomes crucial to be conducted. In this experimnet, we propose the use of Fe 3 O 4 magnetic fluid prepared from a local iron sand in Indonesia as a material for a magnetic sensor. In this work, optical activities of the Fe 3 O 4 magnetic fluid as the effect of magneto-optics were performed under varying external magnetic field. The polarization direction change of the laser was detected as a function of the external magnetic field with the exponential function. Moreover, the intensity collected by a photodetector exhibited a linear correlation with the external magnetic field. These phenomena become strong evidence that the prepared Fe 3 O 4 magnetic fluid opens potential to be applicated further as sensors, especially as a high sensitive optics-based sensor for the magnetic field.

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Experimental investigation on the magneto-optic effects of ferrofluids via dynamic measurements

Cited by 67 publications

References 35 publications

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Investigation into loss in ferrofluid magnetization

Optical Properties of Fe₃O₄Magnetic Fluid from Iron Sand

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Experimental investigation on the magneto-optic effects of ferrofluids via dynamic measurements

Cited by 67 publications

References 35 publications

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Investigation into loss in ferrofluid magnetization

Optical Properties of Fe3O4Magnetic Fluid from Iron Sand

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Product

Resources

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Optical Properties of Fe₃O₄Magnetic Fluid from Iron Sand