Structural, electrical and optical properties of CuLayFe2-y ferrite system
Other Title(s)
الخصائص التركيبية و الكهربائية و البصرية لنظام فيرايت CuLayFe2-Y
Dissertant
Thesis advisor
Jamil, Muzaffar Fuad
Nuri, Farah Tariq Muhammad
Comitee Members
Shaban, Salma M.
al-Isa, Izzat M.
Zaydan, Shihab Ahmad
University
University of Baghdad
Faculty
College of Science
Department
Department of Physics
University Country
Iraq
Degree
Master
Degree Date
2014
English Abstract
Ferrite with the general formula CuLayFe2-yO4 (where y=0.02, 0.04, 0.06, 0.08 and 0.1), were prepared by standard ceramic technique for bulk and deposited (using pulsed laser deposition (PLD) technique) thin films.
The main cubic spinel structure phase for bulk samples was confirmed by x-ray diffraction patterns with the appearance of small amount of secondary phases.
For thin films, the main phase was pure cubic structure for all samples.
The lattice parameter (a) results were 8.285-8.348Å for bulk and 8.298-8.311 Å for thin films.
X-ray density increased with La addition and showed values between 5.5826–5.7461g/cm3for bulk and 5.5762-5.7575 g/cm3for thin films.
The atomic force microscope (AFM) micrographs showed that the average grain size was decreasing with the increase in La concentration.
The optical measurements showed that the CuLayFe2-yO4 ferrite thin films have direct energy gap of values ranging between (3.25-2.28) eV.
The transmittance decreased with increasing La content.
The absorption coefficient increased with increasing La content.
The resistivity was found to decrease with La content due to the increase in charge mobility.
The results of Hall coefficient showed a p-type semiconductor behavior.
The activation energy Ea decreased with the frequency increase.
The conductivity was found to increase with the frequency.
The imaginary part of dielectric constant ε2 revealed the same behavior as the real part ε1 with the variation of La content.
Both of ε1& ε2 decreased with the increase of frequency.
Main Subjects
No. of Pages
60
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Theoretical aspects.
Chapter Three : Experimental work.
Chapter Four : Results and discussion.
Chapter Five : Conclusion and suggestions.
References.
American Psychological Association (APA)
Fahad, Dua Basil. (2014). Structural, electrical and optical properties of CuLayFe2-y ferrite system. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607309
Modern Language Association (MLA)
Fahad, Dua Basil. Structural, electrical and optical properties of CuLayFe2-y ferrite system. (Master's theses Theses and Dissertations Master). University of Baghdad. (2014).
https://search.emarefa.net/detail/BIM-607309
American Medical Association (AMA)
Fahad, Dua Basil. (2014). Structural, electrical and optical properties of CuLayFe2-y ferrite system. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-607309
Language
English
Data Type
Arab Theses
Record ID
BIM-607309
