Abstract
A series of yttrium iron garnet (YIG) and terbium erbium iron garnet (TbErIG) nanocrystalline films was successfully grown using a sol-gel method. A crystalline analysis carried out using an X-ray diffractometer confirmed that all films had a single-phase garnet structure. The TbErIG films annealed in O2 and Ar gas had a larger number of crystallisation peaks, with a lattice constant that was close to the standard value for ErIG. The transparency increased from 94% for YIG (O2) to 98% for TbErIG (O2) films in the near-infrared region. All films were soft ferrite materials, as indicated by their magnetic hysteresis loops. The value of saturated magnetisation was increased for samples annealed in air, and was markedly decreased for samples subjected to O2 and Ar atmospheres. An increase in the coercivity value (91 Oe) was also observed for the TbErIG (Ar) film. YIG and TbErIG showed a phase transition from ferrimagnetic to paramagnetic at the Curie temperature, Tc = 556 K and 557.3 K, respectively. The low saturation magnetisation, low optical absorption and highly crystalline structure of TbErIG (O2 and Ar) films mean that these films may potentially be used in a magneto-optical compact isolator in the visible and NIR regions.
| Original language | English |
|---|---|
| Pages (from-to) | 66-76 |
| Number of pages | 11 |
| Journal | Materials Research Bulletin |
| Volume | 112 |
| DOIs | |
| Publication status | Published - 1 Apr 2019 |
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Keywords
- Magnetic properties
- Nanostructures
- Optical properties
- Sol-gel
- X-ray diffraction
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Structural, optical and magnetic properties of YIG and TbErIG nanofilms prepared using a sol-gel method. / Elhamali, Suleiman M.; Ibrahim, Noor Baa`Yah; Radiman, Shahidan.
In: Materials Research Bulletin, Vol. 112, 01.04.2019, p. 66-76.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural, optical and magnetic properties of YIG and TbErIG nanofilms prepared using a sol-gel method
AU - Elhamali, Suleiman M.
AU - Ibrahim, Noor Baa`Yah
AU - Radiman, Shahidan
PY - 2019/4/1
Y1 - 2019/4/1
N2 - A series of yttrium iron garnet (YIG) and terbium erbium iron garnet (TbErIG) nanocrystalline films was successfully grown using a sol-gel method. A crystalline analysis carried out using an X-ray diffractometer confirmed that all films had a single-phase garnet structure. The TbErIG films annealed in O2 and Ar gas had a larger number of crystallisation peaks, with a lattice constant that was close to the standard value for ErIG. The transparency increased from 94% for YIG (O2) to 98% for TbErIG (O2) films in the near-infrared region. All films were soft ferrite materials, as indicated by their magnetic hysteresis loops. The value of saturated magnetisation was increased for samples annealed in air, and was markedly decreased for samples subjected to O2 and Ar atmospheres. An increase in the coercivity value (91 Oe) was also observed for the TbErIG (Ar) film. YIG and TbErIG showed a phase transition from ferrimagnetic to paramagnetic at the Curie temperature, Tc = 556 K and 557.3 K, respectively. The low saturation magnetisation, low optical absorption and highly crystalline structure of TbErIG (O2 and Ar) films mean that these films may potentially be used in a magneto-optical compact isolator in the visible and NIR regions.
AB - A series of yttrium iron garnet (YIG) and terbium erbium iron garnet (TbErIG) nanocrystalline films was successfully grown using a sol-gel method. A crystalline analysis carried out using an X-ray diffractometer confirmed that all films had a single-phase garnet structure. The TbErIG films annealed in O2 and Ar gas had a larger number of crystallisation peaks, with a lattice constant that was close to the standard value for ErIG. The transparency increased from 94% for YIG (O2) to 98% for TbErIG (O2) films in the near-infrared region. All films were soft ferrite materials, as indicated by their magnetic hysteresis loops. The value of saturated magnetisation was increased for samples annealed in air, and was markedly decreased for samples subjected to O2 and Ar atmospheres. An increase in the coercivity value (91 Oe) was also observed for the TbErIG (Ar) film. YIG and TbErIG showed a phase transition from ferrimagnetic to paramagnetic at the Curie temperature, Tc = 556 K and 557.3 K, respectively. The low saturation magnetisation, low optical absorption and highly crystalline structure of TbErIG (O2 and Ar) films mean that these films may potentially be used in a magneto-optical compact isolator in the visible and NIR regions.
KW - Magnetic properties
KW - Nanostructures
KW - Optical properties
KW - Sol-gel
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=85058145792&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058145792&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2018.12.005
DO - 10.1016/j.materresbull.2018.12.005
M3 - Article
AN - SCOPUS:85058145792
VL - 112
SP - 66
EP - 76
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
ER -