The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The kinetic equation for electrons of an asymmetric superlattice under conditions when the asymmetry appears in the processes of intra-miniband electron scattering is solved. The current-voltage characteristic for arbitrary non-quantizing electric fields is calculated. The existence of an even (with respect to field) component of current-voltage characteristic stipulates the appearance of constant current (or constant electromotive force) in the sample placed in a microwave radiation field.