"We report an experimental and theoretical study of the electronic band structure and Fermi surfaces (FSs) of V2AlC single crystals using angle-resolved photoemission spectroscopy and density functional theory (DFT) calculations. We provide evidence of the existence of equivalent, complex hole FSs with a nearly tubular form along the c axis, and of an intricate electron FS exhibiting tubes parallel to c connected to one another by smaller tubes with axes parallel to the ab plane. The electron FS thus exhibits a small delocalization along the c axis. The local orbital character of each observed band is experimentally and theoretically assessed. DFT calculations show an excellent agreement with experiment. We also report the observation of an unstable surface state.
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Written by Maria Carmen Jimenez Arevalo
Date of update August 13, 2018
Research Nanomaterials and advanced heterostructures (NanoMAT)