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2010 | 8 | 2 | 419-425
Tytuł artykułu

Structural properties and magnetic interactions in Al3+ and Cr3+ co-substituted CoFe2O4 ferrite

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A series of CoAlxCrxFe2−2xO4 systems (x = 0.1 to 0.5 in steps of x = 0.1) spinel ferrites have been synthesized successfully using wet chemical co-precipitation technique. The samples were characterized by X-ray diffraction (XRD), infrared spectroscopy (IR) and magnetization measurements. The powder XRD patterns confirm the single phase spinel structure for the materials synthesized. X -ray diffraction measurements were performed to yield the lattice constant as function of the amount x corresponding to Al-Cr substitution. Lattice parameters, X-ray density, bulk density and particle size decrease whereas porosity increases with the increase in Al-Cr content, ‘x’. Infrared studies show two absorption bands at about 400 cm−1 and 600 cm−1 for octahedral and tetrahedral sites, respectively. Saturation magnetization decreases with the increase in Al-Cr content x. AC magnetic susceptibility measurements were carried out as a function of temperature to measure the Curie temperature, which was found to decrease with Al-Cr content x. The decrease of Curie temperature has been explained by A-B interaction. [...]
Wydawca

Czasopismo
Rocznik
Tom
8
Numer
2
Strony
419-425
Opis fizyczny
Daty
wydano
2010-04-01
online
2010-03-23
Twórcy
  • Department of Physics, Yashwantrao Chavan Mahavidyalaya, Tuljapur, 413 601, Osmanabad, India
autor
  • Department of Physics, Shrikrishna Mahavidyalaya, Gunjoti, Osmanabad, 413 613, India, ram111612@yahoo.co.in
autor
  • Department of Physics, Jawahar Mahavidyalaya, Andoor, 413 606, India
autor
  • Department of Physics, Shrikrishna Mahavidyalaya, Gunjoti, Osmanabad, 413 613, India
  • Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, 431 004, India
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-009-0145-5
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