Coherent Acoustic Phonons in Bi2 Se3 Ultrathin Films Probed by Femtosecond, Optical Pump-Probe Spectroscopy
Paper i proceeding, 2024
The dynamics of coherent acoustic phonons in the Bi2Se3 layered crystal system are investigated. The findings reveal that the frequency evolution of breathing modes with the number of the material quintuple layers and the dispersion relation both can be explained by a modified chain model with a nonuniform coupling force.
Författare
Jing Cheng
University of Rochester
Kiryl Niherysh
Latvijas Universitate
Peter Francis
Hajim School of Engineering and Applied Sciences
Debamitra Chakraborty
University of Rochester
Floriana Lombardi
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Donats Érts
Latvijas Universitate
S. L. Prischepa
Universita degli Studi di Salerno
Adam Laszcz
Sieć Badawcza Łukasiewicz
Ivan Komissarov
Hajim School of Engineering and Applied Sciences
University of Rochester
R. Sobolewski
University of Rochester
Hajim School of Engineering and Applied Sciences
CLEO: Fundamental Science, CLEO:FS 2024 in Proceedings CLEO 2024 - Part of Conference on Lasers and Electro-Optics
9781957171395 (ISBN)
CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024
Charlotte, USA,
Charlotte, USA,
Ämneskategorier
Annan materialteknik
Den kondenserade materiens fysik
DOI
10.1364/cleo_fs.2024.ff2c.6
ISBN
9781957171395