Author/Authors :
Nobuaki Hayashi، نويسنده , , Kohei Tsumura، نويسنده , , Shintaro Nomura، نويسنده , , Masumi Yamaguchi، نويسنده , , Hiroyuki Tamura، نويسنده , , Tatsushi Akazaki، نويسنده , , Yoshiro Hirayama، نويسنده ,
Abstract :
Real-space mappings of a Hall photovoltage are performed by local laser excitation using optical microscope setup with a spatial resolution of about View the MathML source. The obtained images of broad and narrow strips presumably reflect the diffusion of the optically created electrons in the bulk and the edge states. The image near a current contact is considered to reflect the potential gradient near the contact.
