Crystallization and magnetic characterizations of DyIG and HoIG nanopowders fabricated using citrate sol-gel

Dao Thi Thuy Nguyet, Nguyen Phuc Duong, Takuya Satoh, Luong Ngoc Anh, To Thanh Loan, Than Duc Hien

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Dy and Ho iron garnets in form of nanoparticles were synthesized by citrate sol-gel method. Phase formation, lattice constant and average crystallite sizes of the samples were determined via XRD measurements. Morphology and particle size distribution were studied by TEM and chemical composition was checked by EDX. Magnetic measurements in temperature range 5–600 K and in the maximum applied field of 50 kOe were carried out by using SQUID and VSM. Their magnetic parameters, including Curie temperature, magnetization compensation temperature, spontaneous magnetization, high-field susceptibility, magnetic coercivity were discussed in the framework of three interacting magnetic sublattices, magnetocrystalline anisotropy, core-shell model and compared to those of the bulk materials. Based on these analyses further evaluation on the crystallinity and homogeneity of the samples has been made.

Original languageEnglish
Pages (from-to)193-199
Number of pages7
JournalJournal of Science: Advanced Materials and Devices
Volume1
Issue number2
DOIs
Publication statusPublished - Jun 1 2016

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Crystallization
Citric Acid
Sol-gels
Magnetization
Magnetocrystalline anisotropy
SQUIDs
Garnets
Magnetic variables measurement
Crystallite size
Curie temperature
Coercive force
Magnetic susceptibility
Particle size analysis
Sol-gel process
Lattice constants
Energy dispersive spectroscopy
Iron
Nanoparticles
Transmission electron microscopy
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Biomaterials
  • Materials Science (miscellaneous)

Cite this

Crystallization and magnetic characterizations of DyIG and HoIG nanopowders fabricated using citrate sol-gel. / Nguyet, Dao Thi Thuy; Duong, Nguyen Phuc; Satoh, Takuya; Anh, Luong Ngoc; Loan, To Thanh; Hien, Than Duc.

In: Journal of Science: Advanced Materials and Devices, Vol. 1, No. 2, 01.06.2016, p. 193-199.

Research output: Contribution to journalArticle

Nguyet, Dao Thi Thuy ; Duong, Nguyen Phuc ; Satoh, Takuya ; Anh, Luong Ngoc ; Loan, To Thanh ; Hien, Than Duc. / Crystallization and magnetic characterizations of DyIG and HoIG nanopowders fabricated using citrate sol-gel. In: Journal of Science: Advanced Materials and Devices. 2016 ; Vol. 1, No. 2. pp. 193-199.
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