Raman Spectra and Excitonic Effects of the Novel Ta2Ni3Te5 Monolayer
Alexandre C Dias, Raphael M Tromer, Humberto R Gutiérrez, Douglas S Galvão, Elie A Moujaes · 2024
Read Raman Spectra and Excitonic Effects of the Novel Ta2Ni3Te5 Monolayer by Alexandre C Dias, Raphael M Tromer, Humberto R Gutiérrez, Douglas S Galvão, Elie A Moujaes (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11635507.txt.
Description
Alexandre Dias and four co-authors compute the light fingerprints of a new two-dimensional crystal before anyone grows it, in a 2024 paper. The monolayer, Ta2Ni3Te5, stacks tantalum, nickel, and tellurium in a fresh arrangement.
Calculations say the sheet is stable enough to exist free-standing. It is an indirect semiconductor, with a band gap that depends on the method, between 0.09 and 0.38 electron volts. Ten Raman and ten infrared vibration modes are predicted for common laser setups, a checklist for experimentalists. Nickel barely moves in the Raman modes; tantalum sits out most infrared ones. The sheet bends light unevenly by direction and reflects ultraviolet strongly. Exciton binding is a sturdy 287 milli-electron volts.
Catalog record
| CREATOR | Alexandre C Dias, Raphael M Tromer, Humberto R Gutiérrez, Douglas S Galvão, Elie A Moujaes |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 25 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |