学術雑誌論文

学術雑誌論文

text

Applied Physics Letters. 2017, 111(10), p. 101902-1-101902-5

Resistive spectroscopy coupled with non-contacting oscillator for detecting discontinuous-continuous transition of metallic films

American Institute of Physics

英語

text

2017-09-08

https://doi.org/10.1063/1.4995469

Nakamura N., Ogi H. Resistive spectroscopy coupled with non-contacting oscillator for detecting discontinuous-continuous transition of metallic films. Applied Physics Letters, 111(10), 101902 (2017) https://doi.org/10.1063/1.4995469.

In spectroscopic measurements, one measures responses of specimens to oscillating fields (including electric, magnetic, and stress fields) at different frequencies for characterizing the samples. In contrast, we develop spectroscopy where the response (loss) is measured by changing the electric resistance, named the resistive spectroscopy. In the resistive spectroscopy, an energy-loss peak appears when the resistance is changed. We here apply it for studying the morphological change of thin films. When a metallic material is deposited on a substrate, the morphological transition from discontinuous islands to the continuous film occurs. It accompanies a drastic change in the resistance of the deposited material because of the transition from an insulator to a conductor. We find that the energy-loss peak appears at the transition moment during deposition of Ag. The resistive spectroscopy we develop uses no electrodes; it adopts the electric field generated by a piezoelectric material vibrating at its resonant frequency beneath the substrate. It is observed that the full width at half maximum (FWHM) of the resonance shows the peak during the deposition for high resistance substrates. The FWHM peak fails to be found for low resistance substrates, but it appears when the resonance frequency is increased. We propose an electrical-circuit model for explaining these observations.

Copyright 2017 Authors. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters, 111(10), 101902, 2017 and may be found at https://doi.org/10.1063/1.4995469.

83921

Resistive spectroscopy coupled with non-contacting oscillator for detecting discontinuous-continuous transition of metallic films

American Institute of Physics

英語

2017-09-08

Applied Physics Letters

111

10

101902-1

101902-5

https://doi.org/10.1063/1.4995469

https://hdl.handle.net/11094/83921