Reinvestigating the surface and bulk electronic properties of Cd3As2

This record contains the experimental results of our reinvestigation of the bulk and surface electronic properties of Cd3As2, a well-known material proposed to realize the 3D Dirac semimetal phase. By using polarization-based matrix element effects in photoemission, we reveal multiple bands crossing the Fermi level, characterized by different orbital character. Those states exhibit also largely different effective masses, and by combining alkali metal deposition and photon energy dependent ARPES, we report that the linearly dispersing band, which was previously interpreted as a bulk Dirac particle, is indeed a 2D surface Dirac state.

Identifier
Source https://archive.materialscloud.org/record/2021.59
Metadata Access https://archive.materialscloud.org/xml?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:materialscloud.org:805
Provenance
Creator Roth, Silvan; Lee, Hyungjun; Sterzi, Andrea; Zacchigna, Michele; Politano, Antonio; Sankar, Raman; Chou, Fang-Cheng; Di Santo, Giovanni; Petaccia, Luca; Yazyev, Oleg V.; Crepaldi, Alberto
Publisher Materials Cloud
Publication Year 2021
Rights info:eu-repo/semantics/openAccess; Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode
OpenAccess true
Contact archive(at)materialscloud.org
Representation
Language English
Resource Type Dataset
Discipline Materials Science and Engineering