Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 127, Issue 6, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-021-04519-4
Keywords
Diluted magnetic semiconductors; Sol-Gel technique; Ferromagnetism
Ask authors/readers for more resources
The structure and magnetization of polycrystalline Zn1-xMnxO3 films (0 <= x <= 0.1) grown on glass and Si substrates using Sol-Gel technique have been studied. It has been found that films grown on Si substrates exhibit ferromagnetic properties after thermal annealing while films grown on glass substrates did not exhibit ferromagnetic order even after thermal treatment. This suggests a potential procedure for achieving room temperature ferromagnetism in Mn doped ZnO films on p-type Si substrates for spintronic device applications.
The structure and magnetization of polycrystalline Zn1-xMnxO3 films (0 <= x <= 0.1) grown on glass and Si substrates using Sol-Gel technique have been studied. The average grain sizes of between 20 and 30 nm for nano-sphere structured polycrystalline samples grown on the glass substrate have been obtained in a result of X-ray diffraction analysis. Changes in the structural parameters by the increase in Mn content have been observed. Average grain sizes and porosities of the samples have been obtained from SEM studies. It has been revealed that the films grown on glass substrates did not exhibit ferromagnetic order even after thermal treatment. On the contrary, Zn1-xMnxO3 films with Mn contents of x=0.05 and 0.10 grown on Si substrate exhibited ferromagnetic properties after thermal annealing. This phenomenon has been interpreted on the base of the existence of carrier mediated magnetic ordering in Zn1-xMnxO3 diluted magnetic semiconductors. In a result, a procedure of thermal treatment is suggested for achieving of the room temperature ferromagnetism in Mn doped ZnO films synthesized on p-type Si substrates for their applications as magnetic semiconductor material in spintronic devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available