On the magnetic properties of ultra-fine zinc ferrites

Anantharaman, M. R.; Jagatheesan, S.; Malini, K. A.; Sindhu, S.; Narayanasamy, A.; Chinnasamy, C. N.; Jacobs, J.‐P.; Reijne, S.; Seshan, Kulathuiyer; Smits, R.H.H.; Brongersma, Hidde H.

doi:10.1016/s0304-8853(98)00171-1

Cited by 120 publications

(62 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10). It is worth mentioning that zinc ferrite is found to possess magnetization value of 5.2 emu/g which is in agreement with the findings of various researchers [4,5].…”

Section: Magnetic Characterizationsupporting

confidence: 90%

“…In the nanoregime, in case of spinel ferrites, there are distinct deviations in magnetic properties with respect to their bulk counterparts. For instance, though zinc ferrite is a normal spinel in the micron regime and non-magnetic, in the nanoregime it is found to exhibit an inversion and hence exhibit a net magnetization at room temperature [3][4][5]. Nanosized nickel ferrite is reported to be exhibiting increased magnetization by some researchers [6], while others have reported reduced magnetization with respect to their bulk counterparts [7].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of zinc substitution on the structural and magnetic properties of chemically derived nanosized manganese zinc mixed ferrites

Gopalan

Al‐Omari

Malini³

et al. 2009

Journal of Magnetism and Magnetic Materials

Self Cite

105

View full text Add to dashboard Cite

a b s t r a c tMn 1Àx Zn x Fe 2 O 4 nanoparticles (x ¼ 0-1) were synthesized by wet chemical co-precipitation techniques. X-ray diffraction, transmission electron microscopy and high-resolution transmission electron microscopy were effectively utilized to investigate the different structural parameters. The elemental analysis was conducted using energy-dispersive spectrum and inductively coupled plasma analysis. The magnetic properties such as magnetization and coercivity were measured using vibrating sample magnetometer. The observed magnetization values of the nanoparticles were found to be lower compared to the bulk counterpart. The magnetization showed a gradual decrease with zinc substitution except for a small increase from x ¼ 0.2 to 0.3. The Curie temperature was found to be enhanced in the case of ferrites in the nanoregime. The variation in lattice constant, reduced magnetization values, variation of magnetization with zinc substitution, the presence of a net magnetic moment for the zinc ferrite and the enhancement in Curie temperature in Mn 1Àx Zn x Fe 2 O 4 all provide evidence to the existence of a metastable cation distribution together with possible surface effects at the nanoregime.

show abstract

“…10). It is worth mentioning that zinc ferrite is found to possess magnetization value of 5.2 emu/g which is in agreement with the findings of various researchers [4,5].…”

Section: Magnetic Characterizationsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Impact of zinc substitution on the structural and magnetic properties of chemically derived nanosized manganese zinc mixed ferrites

Gopalan

Al‐Omari

Malini³

et al. 2009

Journal of Magnetism and Magnetic Materials

Self Cite

105

View full text Add to dashboard Cite

show abstract

“…The lattice constant obtained for NiFe 2 O 4 (8.384 Å) is close to that known of bulk NiFe 2 O 4 (8.395 Å) [3] . The lattice constant for Ni-Zn ferrites reported by R. Anantharaman et al 25 is very close to the present experimental values. Figure 2 shows that the lattice constant increases with increase in zinc concentration.…”

Section: Physical Characterizationsupporting

confidence: 78%

Synthesis of nickel zinc iron nanoparticles by coprecipitation technique

2010

View full text Add to dashboard Cite

Nanoparticles nickel ferrite of size 6 -8 nm, synthesized by the coprecipitation method with x varying from 0 to 1.0. The powder samples were characterized by XRD, VSM and FTIR. The average crystallite sizes of the particles were determined from X-ray diffraction. X-ray analysis showed that the samples were cubic spinel. The lattice constant (a o ) increased with the increase in zinc substitution. The specific saturation magnetization (M S ) of the particles was measured at room temperature. The magnetic parameter of M S , was found to decrease with the increase in zinc substitution. Fourier transform infrared spectroscopy (FTIR) spectra of the Ni 1-x Zn x Fe 2 O 4 with x = 0, 0.5, 1 in the range 400 -4000 cm -1 were reported. The spinel structure and the crystalline water adsorption of Ni 1-x Zn x Fe 2 O 4 nanoparticles were studied by using FTIR.

show abstract

“…The ferrites can be classified into different categories depending upon their cation distributions. Based on the cations distribution among the tetrahedral and octahedral sites of the coordinated oxygen, they can be either normal spinel M (Anantharaman et al, 1998). Till date, most of the works on spinels have been reported on bulk in order to understand their magnetic behavior and correlate magnetic properties to their structural properties to improve their applications (Lüders et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Probing on Growth and Characterizations of SnFe2O4 Epitaxial Thin Films on MgAl2O4 Substrate

et al. 2014

View full text Add to dashboard Cite

Epitaxial tin ferrite (SnFe 2 O 4 ) thin films were grown using KrF excimer (248 nm) pulsed laser deposition technique under different growth conditions. Highly epitaxial thin films were obtained at growth temperature of 650°C. The quality and epitaxial nature of the films were examined by X-ray diffraction technique. Furthermore, the phi-scans of the film and substrate exhibit fourfold symmetry, which indicates a cube-on-cube epitaxial growth of the film on MgAl 2 O 4 substrate. Moreover, the magnetic force microscopy measurement shows domains with cluster-like structure, which is associated with ferromagnetic phase at room temperature. The coercive field and remnant magnetization of the films decrease with increase in temperature. These high quality ingenious magnetic films could be potentially used in data storage devices.

show abstract

On the magnetic properties of ultra-fine zinc ferrites

Cited by 120 publications

References 18 publications

Impact of zinc substitution on the structural and magnetic properties of chemically derived nanosized manganese zinc mixed ferrites

Impact of zinc substitution on the structural and magnetic properties of chemically derived nanosized manganese zinc mixed ferrites

Synthesis of nickel zinc iron nanoparticles by coprecipitation technique

Probing on Growth and Characterizations of SnFe2O4 Epitaxial Thin Films on MgAl2O4 Substrate

Contact Info

Product

Resources

About