Investigation of Magnetic Interactions in Core/Shell Structured SrFe12O19/NiZnFe2O4 Nanocomposite

被引：17

作者：

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

Ebrahimi, S. A. Seyyed ^{[1
]}

Yourdkhani, A. ^{[1
]}

Khanmohammadi, H. ^{[1
]}

机构：

[1] Univ Tehran, Ctr Excellence Magnet Mat, Sch Met & Mat, Tehran, Iran

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2012年 / 25卷 / 08期

关键词：

Surface modification; Core-shell; Exchange spring; Bi-magnetic; Nanocomposites; CORE-SHELL STRUCTURE; PERMANENT-MAGNETS; SILICA MATRIX; NANOPARTICLES;

D O I：

10.1007/s10948-011-1258-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

SrFe12O19 magnetic nanoparticles (MNPs) were synthesized by a sol-gel self-propagating method and subsequent heat treatment. The SrFe12O19/NiZnFe2O4 core/shell MNPs were obtained by coating the SrFe12O19 MNPs by glyoxilate precursor method using metallic nitrates and ethylene glycol. The core/shell was characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM) techniques. Comparison of the observations with theoretical criteria indicated that the demagnetization behavior of composite NPs is in exchange spring mode. This phenomenon is attributed to the overcritical size, 46 nm, of the hard phase, which leads to partial exchange coupling between hard- and soft-magnetic phases.

引用

页码：2757 / 2762

页数：6

共 50 条

[21] Preparation and Properties of SrFe12O19/ZnFe2O4 Core/Shell Nano-powder Microwave Absorber
Feng, Wangjun
Liu, Huiling
Hui, Pengfei
Yang, Hua
Li, Jing
Wang, Jing Sheng
INTEGRATED FERROELECTRICS, 2014, 152 (01) : 120 - 126
[22] Microwave adsorption of core-shell structure polyaniline/SrFe12O19 composites
Yuan, C. L.
Hong, Y. S.
JOURNAL OF MATERIALS SCIENCE, 2010, 45 (13) : 3470 - 3476
[23] Enhanced magnetic properties of SrFe12O19 through exchange-coupled nanocomposite
Lamouri, R.
Fkhar, L.
Mounkachi, O.
Mahmoud, A.
Boschini, F.
Hamedoun, M.
Salmani, E.
Kim, K. H.
Ali, M. Ait
Benyoussef, A.
Ez-zahraouy, H.
PHYSICA SCRIPTA, 2022, 97 (04)
[24] Investigation of the magnetic properties of SrFe12O19 synthesized by the Pechini and combustion methods
Ramirez, Alfonso E.
Solarte, Norleth J.
Singh, L. H.
Coaquira, Jose A. H.
Gaona J, Sonia
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 438 : 100 - 106
[25] Investigation on the electrical and magnetic properties of PVDF/SrFe12O19 composite membranes
Yao, Xi
Zhou, Jian-Ping
Zhang, Xiao-Li
Lei, Run -Yu
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2023, 572
[26] Smart nanocomposite SrFe12O19/α or γ - Fe2O3 thin films with adaptive magnetic properties
Singh, Nitesh
Kumar, Naresh
Sahadot, Dharohar
Annadi, Anil
Singh, Vidyadhar
Bohra, Murtaza
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2024, 589
[27] Magnetic interactions in SrFe12O19/CoFe2O4 composite: Influence of ball milling frequency and annealing temperature
Bilovol, V.
Sikora, M.
Szkudlarek, A.
Gajewska, M.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 564
[28] TRANSPARENT BAFE12O19 AND SRFE12O19
BRIXNER, LH
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (16) : 4424 - 4424
[29] Facile hydrothermal synthesis of core/shell-like composite SrFe12O19/(Ni,Zn) Fe2O4 nanopowders and their magnetic properties
Xia, Ailin
Ren, Suzhen
Zuo, Conghua
Zhang, Lijiao
Xie, Mingfu
Deng, Yong
Wu, Ruonan
Xu, Wei
Jin, Chuangui
Liu, Xianguo
RSC ADVANCES, 2014, 4 (36): : 18885 - 18888
[30] Structural, Magnetic and Dielectric properties of NiZnFe2O4 nanocrystals
Datt, Gopal
Abhyankar, A. C.
2ND INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES: MICRO TO NANO 2015 (ETMN-2015), 2016, 1724

← 1 2 3 4 5 →