Abstract
By a method that modifies Dingle's original one (1952), broadening effects on the magnetothermal oscillations in two-dimensional electron systems are treated analytically and relevant thermodynamic quantities are evaluated explicitly. In particular, the behaviours of the chemical potential and specific heat in a strong magnetic field are investigated. Landau level broadening does not affect the period but causes significant reduction of the amplitude of the oscillations. For its sensitivity, the oscillating pattern is a good indicator of level broadening, while the period of oscillation can be used for the determination of the effective Bohr magneton.
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