arXiv subjects

Liu Changshi

Publications and source records attributed to Liu Changshi.

3 recordsLinked to original sources

arXiv2017

Extraction of Schottky barrier height insensitive to temperature via forward currentvoltage- temperature measurements

The thermal stability of most electronic and photo-electronic devices strongly depends on the relationship between Schottky Barrier Height (SBH) and temperature. In this paper, the possible of thermionic current depicted via correct and reliability relationship between forward current and voltage is consequently discussed, the intrinsic SBH insensitive to temperature can be calculated by modification on Richardson- Dushman`s formula suggested in this paper. The results of application on four hetero-junctions prove that the method proposed is credible in this paper, this suggests that the I/V/T method is a feasible alternative to characterize these heterojunctions.

physics.gen-ph↗

arXiv2010

Blackbody radiation and distribution function with three parameters

The object of this work is to give the key to answer whether or not there is another numerical method which is different from the equation proposed by Planck to predict blackbody radiation by frequency. Firstly, Maxwell distribution function for molecule velocities was modified, resulting in a distribution function with three parameters for deriving monochromatic intensity of blackbody radiation through frequency. Then this simulation function was applied to estimate the energy density (Jm-2) of blackbody radiation by frequency at 5500 K, 5000 K, 4500 K, 4000 K, 3500 K and 2.73 K of temperature. The results of density simulated by means of distribution function suggested in this paper agree well with the experimental data. All of the correlation coefficients between actual and calculated data are 1.0; at the same time, the mean relative errors are less than 6.65% in total.

physics.gen-ph↗

arXiv2010

On solution of Klein-Gordon equation in scalar and vector potentials

Based on the Coulomb gauge, the accurate Klein-Gordon equation in static scalar and vector potentials was derived from Klein-Gordon equation in electromagnetic environment. The correct equation developed in this comment demonstrates that so-called the Klein-Gordon equation with scalar and vector potentials is incorrect; therefore, some papers published to solve Klein-Gordon equation with equal scalar and vector potential are also wrong.

physics.gen-ph↗