In situ monitoring of electrical resistance of nanoferrite thin film irradiated by 190 MeV Au14+ ions

Ghosh, Sanjukta; Ayyub, Pushan; Kumar, N.; Khan, Saif A.; Banerjee, D.

doi:10.1016/s0168-583x(03)01839-1

Cited by 21 publications

(4 citation statements)

References 18 publications

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“…It is well known that Zn 2+ ions have strong preference for A-sites, whereas Ni 2+ , Co 2+ , and Cu 2+ ions have their tendency towards B-sites [12], while Fe A-and B-sites. Cobalt ions (3 B ) tend to replace nickel ions (2 B ) at B-site producing an increase in saturation magnetization.…”

Section: Resultsmentioning

confidence: 99%

Contribution to Analysis of Co/Cu Substituted Ni-Zn Ferrites

Choudary¹,

Prameela

Varma

et al. 2013

Indian Journal of Materials Science

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In this communication, Co/Cu substituted Ni-Zn ferrites processed through sol-gel synthesis using polyethylene glycol (PEG) as a chelating agent are studied, intending to aid in understanding and choosing the optimum ferrite material for high frequency applications. Lattice constant and average crystallite size have been estimated from FWHM of the X-ray diffraction peaks, and these parameters are understood by considering the ionic radii of the substituted as well as the replacing ions. Observed variations in saturation magnetization and initial permeability for these ferrites have been explained on the basis of anisotropy contribution for cobalt and segregation of copper at grain boundaries evident from scanning electron micrographs.

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Section: Resultsmentioning

confidence: 99%

Contribution to Analysis of Co/Cu Substituted Ni-Zn Ferrites

Choudary¹,

Prameela

Varma

et al. 2013

Indian Journal of Materials Science

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“…6b) can be explained on the basis of the exchange interaction between the ions at the tetrahedral (A) and octahedral (B) sites. In MgCuZn ferrite, the Zn 2 + ions occupy only at A site and Mg 2 + , Cu 2 + and Fe 3 + ions have preference for the B site [34]. Even though Cu 2 + has a preference for the octahedral site, it is also shown to occupy the tetrahedral sites, when Cu substitutes for Mg, a part of Cu 2 + will occupy the tetrahedral sites displacing Fe 3 + ions from there to the octahedral sites.…”

Section: Structural Characteristics Of Ferrite Thin Filmsmentioning

confidence: 99%

The role of copper ions on the structural and magnetic characteristics of MgZn ferrite nanoparticles and thin films

Ghasemi

Ashrafizadeh

Paesano

et al. 2010

Journal of Magnetism and Magnetic Materials

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“…magnetron sputtering technique on Si (100) substrate. Details of the preparation technique have been mentioned in earlier reports [15,16]. The thickness of the films is nearly 60-80 nm.…”

Section: Experimental Techniques 21 Ferrites and Thin Film Preparationmentioning

confidence: 99%

Probing the Effects of SHI and Doping-Induced Defects in Nanocrystalline Spinel Ferrites

Ghosh¹,

Gupta

Reddy

et al. 2005

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Different types of defects have been introduced in ferrite thin films and bulk (powder) systems by implementing different methods namely swift heavy ion irradiation, impurity doping.and mechanical milling. Swift heavy ions (190 MeV Au ions and 150 MeV Ni ions) induced defects in nanocrystalline ferrite thin films arise due to formation of the latent tracks and the point defects. We have elaborately discussed the observed effects in magnetic, surface and electrical properties of ferrite thin films irradiated with SHI. The effects of point defects in impurity doping (In 3+ ions) and the effects of dislocations in mechanical milling (for different hours) have also been discussed in this paper.

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In situ monitoring of electrical resistance of nanoferrite thin film irradiated by 190 MeV Au14+ ions

Cited by 21 publications

References 18 publications

Contribution to Analysis of Co/Cu Substituted Ni-Zn Ferrites

Contribution to Analysis of Co/Cu Substituted Ni-Zn Ferrites

The role of copper ions on the structural and magnetic characteristics of MgZn ferrite nanoparticles and thin films

Probing the Effects of SHI and Doping-Induced Defects in Nanocrystalline Spinel Ferrites

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