Magnetization in Nanocrystalline PLD Zinc Ferrite Thin Films Deposited on Fused Quartz Substrate

Journal Article · Mon Jan 15 00:00:00 EST 2018 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-017-4177-3· OSTI ID:22774160

Jha, Aashish; Kumar, Naresh; Sahni, Mohit; Srivastava, Amit ^[1]; Dwivedi, Jyotirmay ^[2]; Chaubey, Sanjay ^[1]

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1. Motilal Nehru National Institute of Technology Allahabad, Department of Physics (India)
2. Motilal Nehru National Institute of Technology Allahabad, Department of Electronics and Communication Engineering (India)

The nanocrystalline zinc ferrite (ZnFe{sub 2}O{sub 4}) thin films were grown on the fused quartz substrate using pulsed laser deposition. The effects of atmospheric conditions on structural, magnetic, and morphological properties have been systematically studied using X-ray diffraction, vibrating sample magnetometry, and atomic force microscopy. The films showed textured growth of zinc ferrite for the substrate temperatures at ≥ 600 °C irrespective of the ambient environment. Interestingly, thin films of zinc ferrite showed a magnetic hysteresis loop in contrast to the paramagnetic nature of their bulk counterpart. The value of saturation magnetization (4πM{sub s}) increased from 130 to 360 G when the substrate temperature was increased from room temperature (RT) to 800 °C in the oxygen atmosphere. In the absence of oxygen pressure, the value of 4πM{sub s} is observed to be 330 G for the film deposited at RT and found to increase to a value of 670 G when the film is deposited at 400 °C and the maximum value of 2580 G is observed for the film deposited at 700 °C. However, the value of 4πM{sub s} of 800 °C dropped down to 2000 G.

• OSTI ID: 22774160
• Journal Information: Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 1; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media New York; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMIC FORCE MICROSCOPY
CONTROLLED ATMOSPHERES
CRYSTALS
ENERGY BEAM DEPOSITION
FERRITES
HYSTERESIS
LASER RADIATION
MAGNETIZATION
NANOSTRUCTURES
OXYGEN
PARAMAGNETISM
PULSED IRRADIATION
QUARTZ
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
X-RAY DIFFRACTION
ZINC COMPOUNDS