Issue |
EPL
Volume 133, Number 2, January 2021
|
|
---|---|---|
Article Number | 27002 | |
Number of page(s) | 5 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/133/27002 | |
Published online | 23 March 2021 |
Multi-hole bands and quasi–two-dimensionality in Cr2Ge2Te6 studied by angle-resolved photoemission spectroscopy
1 National Synchrotron Light Source II, Brookhaven National Lab - Upton, NY 11973, USA
2 Nordita - Roslagstullsbacken 23, SE-106 91 Stockholm, Sweden
3 Department of Physics, Princeton University - Princeton, NJ 08544, USA
4 Department of Physics, University of Connecticut - Storrs, CT 06269, USA
5 Department of Chemistry, Princeton University - Princeton, NJ 08544, USA
6 Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory Upton, NY 11973, USA
Received: 7 October 2020
Accepted: 11 December 2020
In the present work, we investigate the electronic structure of the two-dimensional ferromagnet Cr2Ge2Te6 by photoemission spectroscopy and ab initio calculations. Our results demonstrate the presence of multi-hole–type bands in the vicinity of the Fermi level indicating that the material can support high electrical conductivity by manipulating the chemical potential. Also, our photon energy-dependent angle-resolved photoemission experiment shows that several of the hole bands exhibit weak dispersion with varied incident photon energy providing experimental signature for the two-dimensional nature of Cr2Ge2Te6. Thereby, these findings can pave the way for further studies towards the application of Cr2Ge2Te6 in electronic devices.
PACS: 75.50.Dd – Nonmetallic ferromagnetic materials / 71.20.-b – Electron density of states and band structure of crystalline solids / 75.50.Pp – Magnetic semiconductors
© 2021 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.