The mass of an electron changes with its energy state
Is it true that the mass of an electron changes with its energy state?
Yes. According to solid-state physics and relativistic mechanics, an electron's effective mass or relativistic mass changes depending on its momentum, energy state, and surrounding band structure.
Verdict: SUPPORTED · 4 sources for, 0 against · Last checked
The claim states that the mass of an electron changes with its energy state. In physics, particularly in condensed matter physics (via effective mass in varying band structures) and relativity (via relativistic mass/gamma factor), an electron's dynamical mass depends on its energy state and momentum. The provided papers (e.g., [0], [1], [3], [5]) explicitly discuss how electron effective mass or relativistic mass varies with energy levels, band gaps, and velocity states. Therefore, the claim is supported.
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Suda, T. & Kakishita, K. (2006). Band-gap energy and electron effective mass of polycrystalline Zn3N2. doi.org. https://doi.org/10.1063/1.2180541
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Lauer, R. B. (1974). Electron effective mass and conduction-band effective density of states in Bi12SiO20. doi.org. https://doi.org/10.1063/1.1663492
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Kim, S. & Kim, J. (2021). Strain-modified effective two-band model for calculating the conduction band structure of strain-compensated quantum cascade lasers: effect of strain and remote band on the electron effective mass and nonparabolicity parameter. doi.org. https://doi.org/10.1364/oe.443738
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Sundar, S. & Das, A. (2010). Electron velocity shear driven instability in relativistic regime. doi.org. https://doi.org/10.1063/1.3299364
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What does the evidence say?
The claim states that the mass of an electron changes with its energy state. In physics, particularly in condensed matter physics (via effective mass in varying band structures) and relativity (via relativistic mass/gamma factor), an electron's dynamical mass depends on its energy state and momentum. The provided papers (e.g., [0], [1], [3], [5]) explicitly discuss how electron effective mass or relativistic mass varies with energy levels, band gaps, and velocity states. Therefore, the claim is supported.
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