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Article

Anisotropic Terahertz Emission from Bi₂Se₃ Thin Films with Inclined Crystal Planes

We investigate the surface states of topological insulator (TI) Bi₂Se₃ thin films grown on Si nanocrystals and Al₂O₃ substrates by using terahertz (THz) emission spectroscopy. Compared to bulk crystalline Bi₂Te₂S...

Sun Young Hamh, Soon-Hee Park, Jeongwoo Han, Jeong Heum Jeon… in Nanoscale Research Letters (2015)