Excess low frequency conduction noise in a granular composite

J. V. Mantese; W. I. Goldburg; D. H. Darling; H. G. Craighead; U. J. Gibson; R. A. Buhrman; W. W. Webb

doi:10.1016/0038-1098(81)90375-6

Excess low frequency conduction noise in a granular composite

J. V. Mantese, W. I. Goldburg, D. H. Darling, H. G. Craighead, U. J. Gibson, R. A. Buhrman, W. W. Webb

Houston Methodist

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Granular composites consisting of 25% nickel as 8 nm diameter particles dispersed in an aluminium oxide matrix display excess conduction noise. Co-deposited films with resistance per square about 10⁵ ohms and negative temperature coefficient show a noise power spectral density S_v(f{hook}) = S_v(1) f{hook}^α where α ≅ 1.10 ± 0.03 over the accessible spectral range of 0.1 Hz ≲ f{hook} ≲ 5000 Hz. The amplitude 3 × 10^-15 ≲ S_v(1) ≲ 5 × 10^-12 V²Hz^-1, appears to increase approximately quadratically as the applied voltage V_s up to V_s ≲ 2.5 V and as the first power of V_s for 2.5 ≲ V_s < 35 V.

Original language	English (US)
Pages (from-to)	353-357
Number of pages	5
Journal	Solid State Communications
Volume	37
Issue number	4
DOIs	https://doi.org/10.1016/0038-1098(81)90375-6
State	Published - Jan 1981

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(81)90375-6

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title = "Excess low frequency conduction noise in a granular composite",

abstract = "Granular composites consisting of 25\% nickel as 8 nm diameter particles dispersed in an aluminium oxide matrix display excess conduction noise. Co-deposited films with resistance per square about 105 ohms and negative temperature coefficient show a noise power spectral density Sv(f\{hook\}) = Sv(1) f\{hook\}α where α ≅ 1.10 ± 0.03 over the accessible spectral range of 0.1 Hz ≲ f\{hook\} ≲ 5000 Hz. The amplitude 3 × 10-15 ≲ Sv(1) ≲ 5 × 10-12 V2Hz-1, appears to increase approximately quadratically as the applied voltage Vs up to Vs ≲ 2.5 V and as the first power of Vs for 2.5 ≲ Vs < 35 V.",

author = "Mantese, \{J. V.\} and Goldburg, \{W. I.\} and Darling, \{D. H.\} and Craighead, \{H. G.\} and Gibson, \{U. J.\} and Buhrman, \{R. A.\} and Webb, \{W. W.\}",

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T1 - Excess low frequency conduction noise in a granular composite

AU - Mantese, J. V.

AU - Goldburg, W. I.

AU - Darling, D. H.

AU - Craighead, H. G.

AU - Gibson, U. J.

AU - Buhrman, R. A.

AU - Webb, W. W.

PY - 1981/1

Y1 - 1981/1

N2 - Granular composites consisting of 25% nickel as 8 nm diameter particles dispersed in an aluminium oxide matrix display excess conduction noise. Co-deposited films with resistance per square about 105 ohms and negative temperature coefficient show a noise power spectral density Sv(f{hook}) = Sv(1) f{hook}α where α ≅ 1.10 ± 0.03 over the accessible spectral range of 0.1 Hz ≲ f{hook} ≲ 5000 Hz. The amplitude 3 × 10-15 ≲ Sv(1) ≲ 5 × 10-12 V2Hz-1, appears to increase approximately quadratically as the applied voltage Vs up to Vs ≲ 2.5 V and as the first power of Vs for 2.5 ≲ Vs < 35 V.

AB - Granular composites consisting of 25% nickel as 8 nm diameter particles dispersed in an aluminium oxide matrix display excess conduction noise. Co-deposited films with resistance per square about 105 ohms and negative temperature coefficient show a noise power spectral density Sv(f{hook}) = Sv(1) f{hook}α where α ≅ 1.10 ± 0.03 over the accessible spectral range of 0.1 Hz ≲ f{hook} ≲ 5000 Hz. The amplitude 3 × 10-15 ≲ Sv(1) ≲ 5 × 10-12 V2Hz-1, appears to increase approximately quadratically as the applied voltage Vs up to Vs ≲ 2.5 V and as the first power of Vs for 2.5 ≲ Vs < 35 V.

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VL - 37

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Excess low frequency conduction noise in a granular composite

Abstract

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