Authors: Mehdi Pakmehr B D McCombe C Bruene H Buhmann L W Molenkamp
Publish Date: 2015/07/02
Volume: 44, Issue: 10, Pages: 3598-3602
Abstract
HgTe quantum wells QWs have shown a number of interesting phenomena recently the first twodimensional topological insulating state We have studied thermoelectric photovoltages of twodimensional electrons in a 61 nm wide HgTe QW induced by cyclotron resonance absorption B = 2 to 5 T of a THz laser beam We have estimated thermopower coefficients by detailed analysis of the photovoltage signals developed across various contacts of a large Hall bar structure at a bath temperature of 16 K The photovoltage signals are washed out at bath temperature of 18 K
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