Effect of Dy3+ ions substitution on structural, electrical, and dielectric properties of SrDyxFe12-xO19 hexaferrite prepared by sol-gel combustion method
The substitution of Dy 3+ ions in the M-type hexaferrite structure has been successfully synthesized by sol-gel combustion method according to the formula SrDy x Fe 12-x O 19 ( x = 0.0, 0.08, 0.16, 0.24, 0.32, and 0.40). The XRD analysis confirmed the formation of single-phase M-type hexagonal struc...
Saved in:
Published in | Journal of electroceramics Vol. 51; no. 2; pp. 104 - 121 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.10.2023
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The substitution of Dy
3+
ions in the M-type hexaferrite structure has been successfully synthesized by sol-gel combustion method according to the formula SrDy
x
Fe
12-x
O
19
(
x
= 0.0, 0.08, 0.16, 0.24, 0.32, and 0.40). The XRD analysis confirmed the formation of single-phase M-type hexagonal structures up to
x
= 0.24 compositions. The average crystallite size for the SrDy
x
Fe
12-x
O
19
samples ranges from 90.64 to 290.04 nm, whereas the value of the lattice parameters 'a' and 'c' vary from 5.8590 - 5.8879 Å and 22.9675 - 23.0761 Å, respectively. Scanning electron microscopy (SEM) was used for morphological analysis. Due to ceasing effect of polarization, the dielectric constant decreases in the higher frequencies. The SrDy
x
Fe
12-x
O
19
hexaferrites exhibit non-Debye type dielectric relaxation behavior confirmed by complex impedance spectroscopy (CIS) investigation. The SrDy
x
Fe
12-x
O
19
samples can be utilized as a promising material for various device applications due to a decrease in dielectric loss and an increase in dielectric constant with increasing Dy
3+
ions concentration. |
---|---|
ISSN: | 1385-3449 1573-8663 |
DOI: | 10.1007/s10832-023-00320-2 |