Six-probe resistance measurements

Ja, van Haaren; Gl, Rikken; Ap, van Gelder; H, van Kempen; Wyder, P.

doi:10.1103/physrevb.38.8342

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Optical spectra were obtained by using a conventional UV-IR spectrometer (V-570, JASCO Co., Ltd). Transport properties, namely, dc resistivity ρ, carrier concentration n e and Hall mobility µ, were determined by the standard six-probe method at room temperature [6]. In order to investigate the maximum solubility of Sn in anatase Nb 0.06 Ti 0.94 O 2 , a combinatorial PLD system has been employed, while adopting the same deposition conditions as those mentioned above.…”

Section: Methodsmentioning

confidence: 99%

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films

Chen¹,

Furubayashi²,

Hirose³

et al. 2007

J. Phys. D: Appl. Phys.

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Nb0.06SnxTi0.94−xO2 (x ≤ 0.3) thin films were grown by a pulsed-laser deposition method with varying Sn concentration. Through a combinatorial technique, we find that Sn concentration can reach a maximum of about x = 0.3 while maintaining the stable anatase phase and epitaxy. A doping concentration dependence of the refractivity is revealed, in which refractivity reduction at a wavelength of λ = 500 nm is estimated to be 12.4% for Nb0.06Sn0.3 Ti0.64O2 thin film. Sn doping induced band-gap blue shift can be contributed to the mixing of extended Sn 5s orbitals with the conduction band of TiO2. Low resistivity on the order of 10−4 Ω cm at room temperature and high internal transmittance of more than 95% in the visible light region are exhibited for Nb0.06Snx Ti0.94−xO2 thin films (x ≤ 0.2). Optical and transport analyses demonstrate that doping Sn into Nb0.06 Ti0.94O2 can reduce the refractivity while maintaining low resistivity and high transparency.

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Section: Methodsmentioning

confidence: 99%

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films

Chen¹,

Furubayashi²,

Hirose³

et al. 2007

J. Phys. D: Appl. Phys.

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Edge effect in near-intrinsic germanium observed with a novel method for resistivity measurements

Haaren

Rikken²,

Gelder

et al. 1989

Journal of Applied Physics

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We report the observation of edge effects in the magnetoconductance of macroscopic samples of near-intrinsic germanium near room temperature as a model system for an ambipolar conductor. We used a novel method for resistivity measurements, which allows for a check of the consistency of a description with a single resistivity tensor for the whole sample. Such a description was found to fail near the magnetic field strengths with a vanishing Hall coefficient. The inconsistency is attributed to the spatial variation of the density of charge carriers, which is caused by the unbalance of the influxes of carriers to the sample’s edge and their recombination/generation via traps in the edge region.

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Electronic transport in low-dimensional structures

1989

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This article reviews the transport properties of electrons in semiconductor heterojunction structures, in which the degrees of freedom for motion of the charge carriers are reduced by confining potentials, thereby producing low-(i.e. two-, one-or even zero-) dimensional electronic structures. A theoretical treatment of quantisation effects due to two-dimensional (2D) and one-dimensional (1D) confinement, with and without an applied magnetic field, will be given, and used to interpret a range of experimental results obtained from GaAs/Al,Ga,_,As 2D and 1D heterojunction structures. For 2D samples, these results cover low-field mobility measurements, which give information on the scattering mechanisms present, and high-field magnetotransport studies, including the quantum Hall effect and parallel conduction processes. In 1D structures, quantum and ballistic transport processes will be discussed.

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Six-probe resistance measurements

Cited by 3 publications

References 18 publications

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films

Edge effect in near-intrinsic germanium observed with a novel method for resistivity measurements

Electronic transport in low-dimensional structures

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Six-probe resistance measurements

Cited by 3 publications

References 18 publications

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO2films

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO2films

Edge effect in near-intrinsic germanium observed with a novel method for resistivity measurements

Electronic transport in low-dimensional structures

Contact Info

Product

Resources

About

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films

Anatase phase stability and doping concentration dependent refractivity in codoped transparent conducting TiO₂films