Structural, magneto-optical properties and cation distribution of SrBixLaxYxFe12-3xO19 (0.0 ≤ x ≤ 0.33) hexaferrites

被引：71

作者：

Auwal, I. A. ^{[1
]}

Gungunes, H. ^{[2
]}

Guner, S. ^{[3
]}

Shirsath, Sagar E. ^{[4
]}

Sertkol, M. ^{[5
]}

Baykal, A. ^{[1
]}

机构：

[1] Fatih Univ, Dept Chem, TR-34500 Istanbul, Turkey

[2] Hitit Univ, Dept Phys, TR-19030 Cevre Yolu Bulvari, Corum, Turkey

[3] Fatih Univ, Dept Phys, TR-34500 Istanbul, Turkey

[4] Shinshu Univ, Fac Engn, Spin Device Technol Ctr, Nagano 3808553, Japan

[5] Istanbul Tech Univ, Dept Engn Phys, TR-34469 Maslak, Turkey

来源：

MATERIALS RESEARCH BULLETIN | 2016年 / 80卷

关键词：

Magnetic materials; Chemical synthesis; Mossbauer spectroscopy; Magnetic properties; Optical properties; MICROWAVE-ABSORPTION PROPERTIES; MAGNETIC-PROPERTIES; HIGH COERCIVITY; DOPED BARIUM; MOSSBAUER; SRFE12O19; NANOPARTICLES; PARTICLES; LA; COPRECIPITATION;

D O I：

10.1016/j.materresbull.2016.03.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SrBixLaxYxFe12-3xO19 (0.0 <= x <= 0.33) hexaferrites were produced via sol-gel auto combustion. XRD patterns show that all the samples are single-phase M-type strontium hexaferrite (SrM). The magnetic hysteresis (sigma-H) loops revealed the ferromagnetic nature of nanoparticles (NPs). The coercive field decreases from 4740 Oe to 2720 Oe with increasing ion content. In particular, SrBixLaxYxFe12-3xO19 NPs with x=0.0, 0.1, 0.2 have suitable magnetic characteristics (sigma(s) = 62.03-64.72 emu/g and H-c = 3105-4740 Oe) for magnetic recording. The intrinsic coercivity (H-ci) above 15000 Oe reveals that all samples are magnetically hard materials. Tauc plots were used to specify the direct optical energy band gap (E-g) of NPs. The E-g values are between 1.76 eV and 1.85 eV. Fe-57 Mossbauer spectroscopy data, the variation in line width, isomer shift, quadrupole splitting, relative area and hyperfine magnetic field values on Bi3+ La3+ and Y3+ substitutions have been determined. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：263 / 272

页数：10

共 61 条

[11] Synthesis and magneto-optical properties of triethylene glycol stabilized Mn1-xZnxFe2O4 nanoparticles [J].