Correlation between chemical composition, electrical, magnetic and microwave properties in Dy-substituted Ni-Cu-Zn ferrites

被引：49

作者：

Almessiere, M. A. ^{[1
]}

Slimani, Y. ^{[1
]}

Gungunes, H. ^{[2
]}

Korkmaz, A. Demir ^{[3
]}

Trukhanov, S. V. ^{[4
]}

Guner, S. ^{[5
]}

Alahmari, F. ^{[6
]}

Trukhanov, A. V. ^{[4
,7
]}

Baykal, A. ^{[6
]}

机构：

[1] Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat IRMC, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia

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

[3] Istanbul Medeniyet Univ, Dept Chem, TR-34700 Uskudar Istanbul, Turkey

[4] SSPA Sci & Pract Mat Res Ctr NAS Belarus, 19,P Brovki Str, Minsk 220072, BELARUS

[5] Rhein Westfal TH Aachen, Inst Inorgan Chem, D-52074 Aachen, Germany

[6] Imam Abdulrahman Bin Faisal Univ, Inst Res & Med Consultat IRMC, Dept Nanomed, POB 1982, Dammam 31441, Saudi Arabia

[7] South Ural State Univ, 76 Lenina Ave, Chelyabinsk 454080, Russia

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2021年 / 270卷

关键词：

Spinel ferrites; Nanoparticles; Magnetic properties; Microwave properties; Domain boundaries resonance; AUTO-COMBUSTION METHOD; NICKEL-ZINC FERRITE; MAGNETOOPTICAL PROPERTIES; MAGNETOCRYSTALLINE ANISOTROPY; OPTICAL-PROPERTIES; NANOPARTICLES; GD;

D O I：

10.1016/j.mseb.2021.115202

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dy3+ ion-substituted nanoferrites Ni0.4Cu0.2Zn0.4Fe2_ xDyxO4 (x <= 0.04) were produced via sol-gel method. Correlation between chemical composition, crystal structure, electrical, magnetic and microwave properties was investigated. All samples were characterized by single-phase state. It was observed that the increase of the Dy content leads to a decrease in the average crystallite size. The bandgap (Eg) was deduced to be between 1.83 and 1.86 eV. The measurements of magnetization versus applied magnetic field (M-H) and magnetization versus temperature (M-T) were investigated by vibrating sample magnetometer (VSM). Magnetic measurements revealed superparamagnetic character at room temperature. The magnetization was increased initially with doping Dy3+ in the ratio of x = 0.01 compering to the un-doped sample and thereafter dropped as Dy3+ ions content further increases. Microwave properties were discussed in terms of electromagnetic absorption in the frequency range 1-20 GHz. The occurrences of the intensive electromagnetic absorption in the frequency ranged from 1.6 to 2.7 GHz were observed. The changes in the amplitude-frequency characteristics correlated well with the level of chemical substitution (x) with Dy ions concentration.

引用

页数：12

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