Observation of highly conductive surface electron states in topological crystalline insulators Pb1-xSnxSe using laser terahertz radiationтезисы доклада
Аннотация:We suggest a method for detection of highly conductive surface electron states including
topological ones. The method is based on measurements of the photoelectromagnetic
effect using terahertz laser pulses. In contrast to conventional transport measurements, the
method is not sensitive to the bulk conductivity. The method is demonstrated on an
example of topological crystalline insulators Pb1-xSnxSe. It is shown that highly
conductive surface electron states are present in Pb1-xSnxSe both in the inverse and direct
electron energy spectrum.