About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Nonlinear behavior of magnetoconductance in two-dimensional electron gas
Abstract
Hot electron effect of the transverse magnetoconductance in Si MOSFET and GaAs/AlGaAs in Corbino geometry are investigated. The effect was measured in terms of differential conductance in the presence of DC bias. It is shown that the SdH oscillations undergo unusual changes due to electron heating. As DC bias increases, the SdH oscillations in differential conductance reverses the phase between magnetic levels. For constant carrier concentration, the phase reversal occurs first at low DC bias. As the dc bias increases, more phase reversal occurs at higher magnetic field. The data reminisces the interlevel electronic specific heat expected between magnetic levels and will be discussed in the light of hot electron delocalization of localized state and interlevel electronic excitation in this regime. © 1986.