Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films

Basavaraj Angadi, Y. S. Jung, Won Kook Choi, Ravi Kumar, K. Jeong, S. W. Shin, J. H. Lee, J. H. Song, M. Wasi Khan, J. P. Srivastava

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Structural, electrical resistivity, and magnetization properties of 200-MeV Ag+15 -ion-irradiated Co-implanted ZnO thin films are presented. The structural studies show the presence of Co clusters whose size is found to increase with increase of Co implantation. The implanted films were irradiated with 200-MeV Ag+15 ions to fluence of 1× 1012 ions cm2. The Co clusters on irradiation dissolve in the ZnO matrix. The electrical resistivity of the irradiated samples is lowered to half. The magnetization hysteresis measurements show ferromagnetic behavior at 300 K, and the coercive field increases with the Co implantation. The ferromagnetism at room temperature is confirmed by magnetic force microscopy measurements. The results are explained on the basis of the close interplay between the electrical and the magnetic properties.

Original languageEnglish
Article number142502
JournalApplied Physics Letters
Volume88
Issue number14
DOIs
Publication statusPublished - 2006 Apr 3

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ferromagnetism
implantation
thin films
magnetization
ions
electrical resistivity
magnetic force microscopy
fluence
hysteresis
magnetic properties
irradiation
room temperature
matrices

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Angadi, B., Jung, Y. S., Choi, W. K., Kumar, R., Jeong, K., Shin, S. W., ... Srivastava, J. P. (2006). Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films. Applied Physics Letters, 88(14), [142502]. https://doi.org/10.1063/1.2192577
Angadi, Basavaraj ; Jung, Y. S. ; Choi, Won Kook ; Kumar, Ravi ; Jeong, K. ; Shin, S. W. ; Lee, J. H. ; Song, J. H. ; Khan, M. Wasi ; Srivastava, J. P. / Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films. In: Applied Physics Letters. 2006 ; Vol. 88, No. 14.
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Angadi, B, Jung, YS, Choi, WK, Kumar, R, Jeong, K, Shin, SW, Lee, JH, Song, JH, Khan, MW & Srivastava, JP 2006, 'Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films', Applied Physics Letters, vol. 88, no. 14, 142502. https://doi.org/10.1063/1.2192577

Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films. / Angadi, Basavaraj; Jung, Y. S.; Choi, Won Kook; Kumar, Ravi; Jeong, K.; Shin, S. W.; Lee, J. H.; Song, J. H.; Khan, M. Wasi; Srivastava, J. P.

In: Applied Physics Letters, Vol. 88, No. 14, 142502, 03.04.2006.

Research output: Contribution to journalArticle

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T1 - Ferromagnetism in 200-MeV Ag+15-ion-irradiated Co-implanted ZnO thin films

AU - Angadi, Basavaraj

AU - Jung, Y. S.

AU - Choi, Won Kook

AU - Kumar, Ravi

AU - Jeong, K.

AU - Shin, S. W.

AU - Lee, J. H.

AU - Song, J. H.

AU - Khan, M. Wasi

AU - Srivastava, J. P.

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N2 - Structural, electrical resistivity, and magnetization properties of 200-MeV Ag+15 -ion-irradiated Co-implanted ZnO thin films are presented. The structural studies show the presence of Co clusters whose size is found to increase with increase of Co implantation. The implanted films were irradiated with 200-MeV Ag+15 ions to fluence of 1× 1012 ions cm2. The Co clusters on irradiation dissolve in the ZnO matrix. The electrical resistivity of the irradiated samples is lowered to half. The magnetization hysteresis measurements show ferromagnetic behavior at 300 K, and the coercive field increases with the Co implantation. The ferromagnetism at room temperature is confirmed by magnetic force microscopy measurements. The results are explained on the basis of the close interplay between the electrical and the magnetic properties.

AB - Structural, electrical resistivity, and magnetization properties of 200-MeV Ag+15 -ion-irradiated Co-implanted ZnO thin films are presented. The structural studies show the presence of Co clusters whose size is found to increase with increase of Co implantation. The implanted films were irradiated with 200-MeV Ag+15 ions to fluence of 1× 1012 ions cm2. The Co clusters on irradiation dissolve in the ZnO matrix. The electrical resistivity of the irradiated samples is lowered to half. The magnetization hysteresis measurements show ferromagnetic behavior at 300 K, and the coercive field increases with the Co implantation. The ferromagnetism at room temperature is confirmed by magnetic force microscopy measurements. The results are explained on the basis of the close interplay between the electrical and the magnetic properties.

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