1963
DOI: 10.1063/1.1729774
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Abstract: The theory of the electric tunnel effect has been extended to asymmetric junctions—i.e., junctions having electrodes of different materials. It is found that the J—V characteristic is polarity-dependent. At lower voltages, the greater current flows when the electrode of lower work function is positively biased, in agreement with observations on junctions having one aluminum electrode. At higher voltages, there is a change in direction of rectification; i.e., greater current flows when the electrode of lower wo… Show more

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Cited by 844 publications
(553 citation statements)
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“…eV<φ/2, the equation 1 is expressed as [19] ) ( .16m e obtained from fitting is same as experimentally reported by others [21] and close to m * = 0.28 m e theoretically calculated for n-alkanes [22] . With these values of m* and φ, we deduce a tunneling decay factor (β =Aφ 0.5 in eq.…”
supporting
confidence: 86%
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“…eV<φ/2, the equation 1 is expressed as [19] ) ( .16m e obtained from fitting is same as experimentally reported by others [21] and close to m * = 0.28 m e theoretically calculated for n-alkanes [22] . With these values of m* and φ, we deduce a tunneling decay factor (β =Aφ 0.5 in eq.…”
supporting
confidence: 86%
“…It has been shown that at very small voltages i.e. for eV<<φ, or in the vicinity of V ~ 0, the equation 1, reduces to [19] Since eV<<φ, it can be considered that φ does not depend on V. Therefore, in this case the J is proportional to V. As shown in Fig. 2 (a), the data in the bias range ±0.15 V fits well to a linear equation.…”
mentioning
confidence: 72%
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“…The effect of the image potential is a reduction of the effective trapezoidal barrier height, resulting in an increase of the current flow between the electrodes. The effective barrier, including the image potential is described by 33,34 φ e f f = φ 0 − eV x s − 1.15 e 2 ln 2 4πε 0 ε r s…”
mentioning
confidence: 99%
“…Besides we use two approximations for our numerical calculations: (1) In the generalized Mie theory, the electric current inside nano-sphere is set to be zero [13], so we can regard the silver plates as equipotential bodies at all time in our calculation; (2) The laser field is treated as a static electric field, and the QT effect in an oscillating field can be described by the results of static field in one period of laser. With these simplifications, when the separation d is not very small, the electric tunneling effect can be studied by the method developed by Simmons [20], which regards electrons are tunneling through a voltage barrier. We find that Simmons' method is not proper when the distance d < 1 nm.…”
mentioning
confidence: 99%