Temperature-dependent magnetic properties of YIG thin films with grain size less 12 nm prepared by a sol-gel method

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report on YIG film with small grain size (<12 nm) that has the potential to be used in microwave device application. The nanostructured film has been deposited on quartz substrate by a sol-gel spin coating technique, followed by annealing at temperatures in the range between 700 and 900 °C. The structural and magnetic properties of the film in the range 10–610 K were investigated. The X-ray diffraction results demonstrate that the films formed in a polycrystalline structure with lattice parameter in the range of 12.249–12.359 Å, lower than that of bulk materials. The saturation magnetization decreased not linearly with increasing the temperature from 10 to 300 K, differently from that reported for the bulk YIG. The coercivity value decreased with increasing temperatures (10–300 K), except for the film annealed at 800 °C. The Curie temperature of the film annealed at 700 °C was 554 K, however, other films showed higher Curie temperature values than that reported for bulk YIG. These properties are strongly influenced by the stress in the film's structure due to the different thermal expansion coefficient of the YIG and the quartz substrate.

Original languageEnglish
Pages (from-to)70-77
Number of pages8
JournalJournal of Magnetism and Magnetic Materials
Volume462
DOIs
Publication statusPublished - 15 Sep 2018

Fingerprint

yttrium-iron garnet
Sol-gel process
Magnetic properties
grain size
gels
magnetic properties
Thin films
thin films
Temperature
Quartz
temperature
Curie temperature
quartz
Microwave devices
Coating techniques
Spin coating
Substrates
Saturation magnetization
Coercive force
Lattice constants

Keywords

  • Curie temperature
  • Ferrimagnetism
  • Magnetic properties
  • Small grains
  • Thin film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{30a6c5d37e314349968d9d5a3486a853,
title = "Temperature-dependent magnetic properties of YIG thin films with grain size less 12 nm prepared by a sol-gel method",
abstract = "We report on YIG film with small grain size (<12 nm) that has the potential to be used in microwave device application. The nanostructured film has been deposited on quartz substrate by a sol-gel spin coating technique, followed by annealing at temperatures in the range between 700 and 900 °C. The structural and magnetic properties of the film in the range 10–610 K were investigated. The X-ray diffraction results demonstrate that the films formed in a polycrystalline structure with lattice parameter in the range of 12.249–12.359 {\AA}, lower than that of bulk materials. The saturation magnetization decreased not linearly with increasing the temperature from 10 to 300 K, differently from that reported for the bulk YIG. The coercivity value decreased with increasing temperatures (10–300 K), except for the film annealed at 800 °C. The Curie temperature of the film annealed at 700 °C was 554 K, however, other films showed higher Curie temperature values than that reported for bulk YIG. These properties are strongly influenced by the stress in the film's structure due to the different thermal expansion coefficient of the YIG and the quartz substrate.",
keywords = "Curie temperature, Ferrimagnetism, Magnetic properties, Small grains, Thin film",
author = "Arsad, {A. Z.} and Ibrahim, {Noor Baa`Yah}",
year = "2018",
month = "9",
day = "15",
doi = "10.1016/j.jmmm.2018.05.003",
language = "English",
volume = "462",
pages = "70--77",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

TY - JOUR

T1 - Temperature-dependent magnetic properties of YIG thin films with grain size less 12 nm prepared by a sol-gel method

AU - Arsad, A. Z.

AU - Ibrahim, Noor Baa`Yah

PY - 2018/9/15

Y1 - 2018/9/15

N2 - We report on YIG film with small grain size (<12 nm) that has the potential to be used in microwave device application. The nanostructured film has been deposited on quartz substrate by a sol-gel spin coating technique, followed by annealing at temperatures in the range between 700 and 900 °C. The structural and magnetic properties of the film in the range 10–610 K were investigated. The X-ray diffraction results demonstrate that the films formed in a polycrystalline structure with lattice parameter in the range of 12.249–12.359 Å, lower than that of bulk materials. The saturation magnetization decreased not linearly with increasing the temperature from 10 to 300 K, differently from that reported for the bulk YIG. The coercivity value decreased with increasing temperatures (10–300 K), except for the film annealed at 800 °C. The Curie temperature of the film annealed at 700 °C was 554 K, however, other films showed higher Curie temperature values than that reported for bulk YIG. These properties are strongly influenced by the stress in the film's structure due to the different thermal expansion coefficient of the YIG and the quartz substrate.

AB - We report on YIG film with small grain size (<12 nm) that has the potential to be used in microwave device application. The nanostructured film has been deposited on quartz substrate by a sol-gel spin coating technique, followed by annealing at temperatures in the range between 700 and 900 °C. The structural and magnetic properties of the film in the range 10–610 K were investigated. The X-ray diffraction results demonstrate that the films formed in a polycrystalline structure with lattice parameter in the range of 12.249–12.359 Å, lower than that of bulk materials. The saturation magnetization decreased not linearly with increasing the temperature from 10 to 300 K, differently from that reported for the bulk YIG. The coercivity value decreased with increasing temperatures (10–300 K), except for the film annealed at 800 °C. The Curie temperature of the film annealed at 700 °C was 554 K, however, other films showed higher Curie temperature values than that reported for bulk YIG. These properties are strongly influenced by the stress in the film's structure due to the different thermal expansion coefficient of the YIG and the quartz substrate.

KW - Curie temperature

KW - Ferrimagnetism

KW - Magnetic properties

KW - Small grains

KW - Thin film

UR - http://www.scopus.com/inward/record.url?scp=85046644087&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85046644087&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2018.05.003

DO - 10.1016/j.jmmm.2018.05.003

M3 - Article

AN - SCOPUS:85046644087

VL - 462

SP - 70

EP - 77

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -