Influence of local symmetry on lattice dynamics coupled to topological surface states

We investigate coupled electron-lattice dynamics in the topological insulator Bi2Te3 with time-resolved photoemission and time-resolved x-ray diffraction. It is well established that coherent phonons can be launched by optical excitation, but selection rules generally restrict these modes to zone-ce...

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Veröffentlicht in:	arXiv.org 2022-12
Hauptverfasser:	Sobota, Jonathan A, Teitelbaum, Samuel W, Huang, Yijing, Querales-Flores, José D, Power, Robert, Allen, Meabh, Rotundu, Costel R, Bailey, Trevor P, Uher, Ctirad, Henighan, Tom, Mason, Jiang, Zhu, Diling, Chollet, Matthieu, Sato, Takahiro, Trigo, Mariano, Murray, Éamonn D, Savić, Ivana, Kirchmann, Patrick S, Fahy, Stephen, Reis, David A, Shen, Zhi-Xun
Format:	Artikel
Sprache:	eng
Schlagworte:	Excitation Lattice vibration Phonons Photoelectric emission Physics - Materials Science Topological insulators Vibrational spectra Wave functions
Online-Zugang:	Volltext
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