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Effect of space charge on the negative oxygen flux during reactive sputtering

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Abstract
Negative ions often play a distinctive role in the phase formation during reactive sputter deposition. The path of these high energetic ions is often assumed to be straight. In this paper, it is shown that in the context of reactive magnetron sputtering space charge effects are decisive for the energetic negative ion trajectories. To investigate the effect of space charge spreading, reactive magnetron sputter experiments were performed in compound mode with target materials that are expected to have a high secondary ion emission yield (MgO and CeO2). By the combination of energy flux measurements, and simulations, a quantitative value for the negative oxygen ion yield can be derived.
Keywords
simulations, reactive magnetron sputtering, spacecharge effect, target erosion

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Citation

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Chicago
Moens, Filip, T Kalvas, Sigelinde Van Steenberge, and Diederik Depla. 2017. “Effect of Space Charge on the Negative Oxygen Flux During Reactive Sputtering.” Journal of Physics D-applied Physics 50 (11).
APA
Moens, F., Kalvas, T., Van Steenberge, S., & Depla, D. (2017). Effect of space charge on the negative oxygen flux during reactive sputtering. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 50(11).
Vancouver
1.
Moens F, Kalvas T, Van Steenberge S, Depla D. Effect of space charge on the negative oxygen flux during reactive sputtering. JOURNAL OF PHYSICS D-APPLIED PHYSICS. 2017;50(11).
MLA
Moens, Filip, T Kalvas, Sigelinde Van Steenberge, et al. “Effect of Space Charge on the Negative Oxygen Flux During Reactive Sputtering.” JOURNAL OF PHYSICS D-APPLIED PHYSICS 50.11 (2017): n. pag. Print.
@article{8510713,
  abstract     = {Negative ions often play a distinctive role in the phase formation during reactive sputter deposition. The path of these high energetic ions is often assumed to be straight. In this paper, it is shown that in the context of reactive magnetron sputtering space charge effects are decisive for the energetic negative ion trajectories. To investigate the effect of space charge spreading, reactive magnetron sputter experiments were performed in compound mode with target materials that are expected to have a high secondary ion emission yield (MgO and CeO2). By the combination of energy flux measurements, and simulations, a quantitative value for the negative oxygen ion yield can be derived.},
  articleno    = {115201},
  author       = {Moens, Filip and Kalvas, T and Van Steenberge, Sigelinde and Depla, Diederik},
  issn         = {0022-3727},
  journal      = {JOURNAL OF PHYSICS D-APPLIED PHYSICS},
  language     = {eng},
  number       = {11},
  pages        = {8},
  title        = {Effect of space charge on the negative oxygen flux during reactive sputtering},
  url          = {http://dx.doi.org/10.1088/1361-6463/aa5ab6},
  volume       = {50},
  year         = {2017},
}

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