Temperature dependent dielectric and magnetic properties of GdFe{sub 1−x}Ni{sub x}O{sub 3} (0.0 ≤ x ≤ 0.3) orthoferrites

Journal Article · Sat Jun 14 04:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4882115· OSTI ID:22304190

Kaur, Pawanpreet; Pandit, Rabia ^[1]; Kumar, Ravi ^[2]; Kotnala, R. K.; Shah, Jyoti ^[3]

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1. Department of Physics, National Institute of Technology, Himachal Pradesh, Hamirpur 177005 (India)
2. Centre for Material Science and Engineering, National Institute of Technology, Himachal Pradesh, Hamirpur 177005 (India)
3. National Physical Laboratory, New Delhi 110012 (India)

The polycrystalline samples of GdFe{sub 1−x}Ni{sub x}O{sub 3} (x = 0.0, 0.1, 0.2, 0.3) orthoferrites are synthesized via solid state reaction route. The Rietveld fitted X-ray diffraction patterns confirm the formation of orthorhombic phase with Pbnm space group for all the samples. The dielectric measurements reveal an enhancement in dielectric constant and tangent loss with increase in both temperature as well as Nickel (Ni) substitution. Dielectric studies are also in support with the induction of delocalized charge carriers in the GdFeO{sub 3} matrix with increasing Ni doping. Magnetization versus applied field study shows the non-saturating hysteresis curves suggesting the canted type antiferromagnetic behavior in the considered orthoferrites. Moreover, the observed magnetic behavior is complex and the doping affects the magnitude of magnetization differently at 300 K and 80 K. It has further been noticed that the incorporated Ni{sup 3+} ions enhances the symmetry of the magnetization curves. The as-prepared samples may find their applications in the decoupling capacitors.

• OSTI ID: 22304190
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 22 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CAPACITORS
CHARGE CARRIERS
DECOUPLING
DIELECTRIC MATERIALS
FERRITES
GADOLINIUM COMPOUNDS
HYSTERESIS
LOSSES
MAGNETIC PROPERTIES
MAGNETIZATION
NICKEL COMPOUNDS
ORTHORHOMBIC LATTICES
PERMITTIVITY
POLYCRYSTALS
SOLIDS
SPACE GROUPS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION