Superparamagnetic behavior of nanosized ZnFe2O4

被引：14

作者：

Dey, S. ^{[1
]}

Mondal, R. ^{[1
]}

Majumder, S. ^{[1
,2
]}

Dasgupta, P. ^{[2
]}

Poddar, A. ^{[2
]}

Banerjee, S. ^{[2
]}

Kumar, S. ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[2] Saha Inst Nucl Phys, 1-AF Bidhannagar, Kolkata 700064, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 03期

关键词：

Ferrite; Rietveld refinement; Mossbauer spectroscopy; dc magnetic study; ZINC FERRITE NANOPARTICLES; MAGNETIC-PROPERTIES; COPRECIPITATION METHOD; ENHANCEMENT;

D O I：

10.1016/j.matpr.2017.10.177

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, we have reported the structural, microstructural, magnetic and hyperfine properties of nanosized (similar to 20 nm) ZnFe2O4 synthesized by flow rate controlled coprecipitation method. The PXRD and HRTEM study demonstrate that the sample is nanosized, single phase spinel oxide which crystallizes in Fd (3) over barm space group. The sample exhibits superparamagnetic relaxation above blocking temperature (similar to 25 K). The saturation magnetizations of the sample are 4, 20 and 28 emu g(-1) at 300, 100 and 10 K, respectively and the sample exhibits no hysteresis at 300 and 100 K. (C) 2017 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Functional Nano-Materials, 2016.

引用

收藏

页码：9855 / 9859

页数：5

相关论文

共 24 条

[1] Role of strain-induced anisotropy on magnetic enhancement in mechanically alloyed Co0.2Zn0.8Fe2O4 nanoparticle -: art. no. 094405 [J].

Bhowmik, RN ;

Ranganathan, R ;

Nagarajan, R ;

Ghosh, B ;

Kumar, S .

PHYSICAL REVIEW B, 2005, 72 (09)

[2] Magnetic properties of cobalt ferrite-silica nanocomposites prepared by a sol-gel autocombustion technique [J].

Cannas, C. ;

Musinu, A. ;

Piccaluga, G. ;

Fiorani, D. ;

Peddis, D. ;

Rasmussen, H. K. ;

Morup, S. .

JOURNAL OF CHEMICAL PHYSICS, 2006, 125 (16)

[3] Magnetic properties of nanostructured ferrimagnetic zinc ferrite [J].

Chinnasamy, CN ;

Narayanasamy, A ;

Ponpandian, N ;

Chattopadhyay, K ;

Guérault, H ;

Greneche, JM .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (35) :7795-7805

[4] Ferrimagnetic ordering in; nanostructured zinc ferrite [J].

Chinnasamy, CN ;

Narayanasamy, A ;

Ponpandian, N ;

Chattopadhyay, K ;

Guérault, H ;

Greneche, JM .

SCRIPTA MATERIALIA, 2001, 44 (8-9) :1407-1410

[5] Stable room temperature magnetic ordering and excellent catalytic activity of mechanically activated high surface area nanosized Ni0.45Zn0.55Fe2O4 [J].

Dey, S. ;

Gomes, R. ;

Mondal, R. ;

Dey, S. K. ;

Dasgupta, P. ;

Poddar, A. ;

Reddy, V. R. ;

Bhaumik, A. ;

Kumar, S. .

RSC ADVANCES, 2015, 5 (96) :78508-78518

[6] Overcoming inherent magnetic instability, preventing spin canting and magnetic coding in an assembly of ferrimagnetic nanoparticles [J].

Dey, S. ;

Dey, S. K. ;

Bagani, K. ;

Majumder, S. ;

Roychowdhury, A. ;

Banerjee, S. ;

Reddy, V. R. ;

Das, D. ;

Kumar, S. .

APPLIED PHYSICS LETTERS, 2014, 105 (06)

[7] Superparamagnetic behavior of nanosized Co0.2Zn0.8Fe2O4 synthesized by a flow rate controlled chemical coprecipitation method [J].

Dey, S. ;

Dey, S. K. ;

Majumder, S. ;

Poddar, A. ;

Dasgupta, P. ;

Banerjee, S. ;

Kumar, S. .

PHYSICA B-CONDENSED MATTER, 2014, 448 :247-252

[8] Structural, microstructural, magnetic and hyperfine characterization of nanosized Ni0.5Zn0.5Fe2O4 synthesized by high energy ball-milling method [J].

Dey, S. ;

Dey, S. K. ;

Ghosh, B. ;

Reddy, V. R. ;

Kumar, S. .

MATERIALS CHEMISTRY AND PHYSICS, 2013, 138 (2-3) :833-842

[9]

Dey S., 2013, J APPL PHYS, V114

[10] MAGNETIC-STRUCTURES OF SUBSTITUTED FERRITES [J].

DORMANN, JL ;

NOGUES, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (05) :1223-1237